IMOS - Satellite Remote Sensing - SST - L3C - Himawari-8 - 1 day - night time - Australia
Updated: 2026-07-28
This is a regional GHRSST level 3 collated (L3C) dataset on 0.02-degree rectangular grid over the Australasian domain (70E to 190E, 70S to 20N) based on retrievals from the AHI imager on board Himawari-8 satellite. The Bureau of Meteorology (Bureau) produces Integrated Marine Observing System (IMOS) satellite SST products in the International Group for High Resolution SST (GHRSST) GDS2 file formats for Himawari-8 in real time and delayed mode. This product is composed of reprocessed multi-swath SSTskin retrievals obtained from compositing IMOS Himawari-8 hourly L3C files over the night (before dawn). Every 10 minutes, the Himawari-8 full disk is processed to retrieve SSTs by using the Radiative Transfer Model (RTTOV12.3) and Bayesian cloud clearing method based on the ESA CCI SST code developed at the University of Reading. The hourly product on native grid is then produced by compositing over multiple swaths for the previous 1 hour. Further, L3C-01day SST fields on native grid are obtained by selecting the highest quality data from the hourly SST records with priority being given to the value the closest in time to the product nominal hour. The L3C-1day night product on native grid is then remapped over the 0.02-degree IMOS grid to compose IMOS L3C-1day night product (Govekar et al., 2021, https://www.foo.org.au/wp-content/uploads/2021/11/Govekar_FOO_2021.pdf). The product format is compliant with the GHRSST Data Specification (GDS) version 2.
Data
- Sea Surface Temperatures Derived from Satellite Data
- NetCDF files via THREDDS catalog
- View and download data though the AODN Portal
- srs_ghrsst_l3c_1d_h08_ngt_url/sea_surface_temperature
- srs_ghrsst_l3c_1d_h08_ngt_url
- GoGoDuck help documentation
- srs_ghrsst_l3c_1d_h08_ngt_url#file_url
- ncUrlList help documentation
- Access To AWS Open Data Program registry for the Cloud Optimised version of this dataset
- Access to Jupyter notebook to query Cloud Optimised converted dataset
- Full metadata link
- https://licensebuttons.net/l/by/4.0/88x31.png
- http://creativecommons.org/licenses/by/4.0/
- {"title":"IMOS - Satellite Remote Sensing - Satellite Sea Surface Temperature (SST) Products Sub-Facility","recordAbstract":"As part of the Integrated Marine Observing System (IMOS), the Australian Bureau of Meteorology produce high-resolution satellite sea surface temperature (SST) products over the Australian region, designed to suit a range of operational and research applications. All these products follow the latest International Group for High Resolution Sea Surface Temperature (GHRSST: www.ghrsst.org) file formats, assisting international data exchange and collaboration.\nThe highest spatial resolution (1 km x 1 km) data from Advanced Very High Resolution Radiometer (AVHRR) sensors on NOAA polar-orbiting satellites can only be obtained through receiving direct broadcast “HRPT” data from the satellite. In Australia, HRPT data is received by a number of agencies (Bureau of Meteorology, Geoscience Australia, AIMS and CSIRO) and consortia (WASTAC and TERSS) at ground-stations located in Darwin, Townsville, Melbourne, Hobart, Perth and Alice Springs and in Antarctica at Casey and Davis Stations.\n\nThe Bureau of Meteorology, in collaboration with CSIRO Marine and Atmospheric Research, is combining raw data from the various ground-stations and producing real-time HRPT AVHRR skin (~ 10 micron depth) SST data files in the GHRSST GDS v2.0 L2P (single swath, geolocated), L3U (single swath, gridded), one and three day daytime/night-time L3C (single sensor, multiple swath, gridded) and one, three and six day daytime/night-time L3S (multiple sensors, multiple swath, gridded) formats. The L2P, L3U, L3C and L3S files for NOAA-15, 17, 18 and 19 satellite data are available through the IMOS FTP server (ftp://aodaac2-cbr.act.csiro.au/imos/GHRSST), IMOS AO-DAAC (http://www.marine.csiro.au/remotesensing/imos/aggregator.html# ) and IMOS Ocean Portal (http://imos.aodn.org.au/webportal/), and will eventually be available through the GHRSST Global Data Assembly Centre (http://ghrsst.jpl.nasa.gov). Archived raw HRPT AVHRR data from Australian and Antarctic ground-stations back to 1992 will be progressively reprocessed into skin SST L2P, L3U, L3C and L3S files and be available to GHRSST and IMOS by June 2013.\nFor the user, there are several advantages to using GHRSST-format SST products. For each SST value the GHRSST files contain a quality level flag (based on proximity to cloud, satellite zenith angle and day/night) and bias and standard deviation error estimates based on 60 day match-ups with drifting buoy SST data. Note that the closer an SST pixel is to cloud, the higher the standard deviation. Therefore, the presence of these quality level flags and error information enable users to tailor the L2P, L3U, L3C or L3S files for their particular research application by trading SST spatial coverage for accuracy and vice versa. Users have the ability to access L3U, L3C and L3S SST products through IMOS OPeNDAP servers, greatly simplifying data access and extraction. Providing real-time HRPT AVHRR SST files in GHRSST-L2P format enables them to be incorporated into global and regional, gap-free, analyses of L2P SST from multiple satellites such as NASA’s G1SST global 1 km daily SST analysis and the Bureau of Meteorology’s daily regional and global SST analyses (RAMSSA and GAMSSA).\nThe new IMOS AVHRR L2P SSTs exhibit approximately 75% the error of the Bureau’s pre-existing HRPT AVHRR level 2 SST data, with standard deviations compared with drifting buoys during night-time of around 0.3°C and during daytime of around 0.4°C for quality level 5 (highest). This significant improvement in accuracy has been achieved by improving cloud clearing and calibration - using regional rather than global drifting buoy SST observations and incorporating a dependence on latitude.\nFor further details on the AVHRR GHRSST products see Paltoglou et al. (2010) (http://imos.org.au/srsdoc.html). Enquiries can be directed to Pallavi Govekar (pallavi.govekar(at)bom.gov.au).\n\n\nAll the IMOS satellite SST products are supplied in GHRSST netCDF format and are either geolocated swath (\"L2P\") files or level 3 composite, gridded files that will have gaps where there were no observations during the specified time period. The various L3U (single swath), L3C (single sensor, multiple swath) and L3S (multiple sensors, multiple swaths) are designed to suit different applications. Some current applications of the various IMOS satellite SST products are:\n\nHRPT AVHRR data:\n\nL2P: Ingestion into optimally interpolated SST analysis systems (eg. RAMSSA, GAMSSA, G1SST, ODYSSEA);\n\nL3U: Calculation of surface ocean currents (IMOS OceanCurrents);\n\nL3C: Estimation of diurnal warming of the surface ocean (GHRSST Tropical Warm Pool Diurnal Variation (TWP+) Project);\n\nL3S: Estimation of likelihood of coral bleaching events (ReefTemp II).\n\nL3P: Legacy 14-day Mosaic AVHRR SST which is a weighted mean SST produced daily from multiple NOAA satellites in a cut-down GHRSST netCDF format. This product is still used in a coral bleaching prediction system run at CMAR. The product is produced using the legacy BoM processing system and is less accurate than the new IMOS L3S product.\n\nGeostationary satellite MTSAT-1R data:\n\nL3U: Hourly, 0.05 deg x 0.05 deg SST used for estimation of the diurnal warming of the surface ocean and validation of diurnal warming models (TWP+ Project)."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 3 day - night time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for three consecutive night-time periods, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only night time passes are included in the product. Each grid cell contains the 3 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-informa\ntion/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 14 day - day and night time - Australia","recordAbstract":"This is a multi-sensor SSTfnd product for a 336 hour period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 336 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations for the central date indicate typical 2014 biases of < 0.03 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this product ceased in 2018."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 14 day - night time - Australia","recordAbstract":"This is a multi-sensor SSTskin product for fourteen consecutive night-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 14 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this product ceased in 2018."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 14 day - day time - Australia","recordAbstract":"This is a multi-sensor SSTskin product for fourteen consecutive day-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 14 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.3 degC and standard deviations of 0.7 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this product ceased in 2018."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 1 day - day time - Southern Ocean","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single day-time period, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Only day time passes are included in the product. Each grid cell contains the 1 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3U - NOAA 19 - Southern Ocean","recordAbstract":"This is a single sensor, single swath SSTskin product for a single overpass, without distinction between day or night. It is derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Each grid cell contains a single observation from the AVHRR radiometer. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - day time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for 6 consecutive day-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 6 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 1 day - night time - Southern Ocean","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single night-time period, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Only night time passes are included in the product. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR productsMatchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 1 day - day time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single day-time period, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only day time passes are included in the product. Each grid cell contains the 1 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - day and night time - Australia","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a single 144 hour period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 144 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for 1 month of consecutive day-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L4 - RAMSSA - Australia","recordAbstract":"An International Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis, produced daily on an operational basis at the Australian Bureau of Meteorology using optimal interpolation (OI) on a regional 1/12 degree grid over the Australian region (20N - 70S, 60E - 170W). This Regional Australian Multi-Sensor SST Analysis (RAMSSA) v1.0 system blends infra-red SST observations from the Advanced Very High Resolution Radiometer (AVHRR) on NOAA and METOP polar-orbiting satellites, microwave SST observations from the Advanced Microwave Scanning Radiometer-2 (AMSR-2) on GCOM-W, and in situ data from ships, and drifting and moored buoys from the Global Telecommunications System (GTS). \n\nAll SST observations are filtered for those values suspected to be affected by diurnal warming by excluding cases which have experienced recent surface wind speeds of below 6 m/s during the day and less than 2 m/s during the night, thereby resulting in daily foundation SST estimates that are largely free of diurnal warming effects."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 month - night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for one month of consecutive night-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/1aa787da-a9ba-494a-ae22-0c3eee2491e1)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 6 day - day time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for six consecutive day-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 6 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.3 degC and standard deviations of 0.7 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - day time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/f07c3d3f-547b-4818-9d2f-12e872c7e158)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 month - day and night time - Southern Ocean","recordAbstract":"This is a single-sensor SSTfnd product for a one month period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Each grid cell contains the one month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations for the central date indicate typical 2014 biases of < 0.03 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day and night time - Southern Ocean (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/579fc1ac-6ee5-40e2-9170-6a857e9b40da)."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 month - day time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for 1 month of consecutive day-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.3 degC and standard deviations of 0.7 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/e3b2531b-a662-43de-9a8b-8e2b385267b3)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - night time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for three consecutive night-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 3 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 6 day - night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for six consecutive night-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 6 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/e1908591-b3cf-42aa-a32f-424322b28165)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - night time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for a single night-time period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day and night time - Australia","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a single 24 hour period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 24 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 month - day and night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTfnd product for a one month period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the one month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations for the central date indicate typical 2014 biases of < 0.03 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day and night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/73e6608c-cbf5-4a01-9c95-1f137de6cbac)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - night time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for six consecutive night-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 6 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 day - night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for a single night-time period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.01 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/d3e3bce3-adb4-433a-a192-93abc91899d3)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - SNPP - 1 day - day time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single day-time period, derived using observations from the VIIRS instrument on the Suomi-NPP satellite. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only day time passes are included in the product. The quality level for each pixel was remapped using the original ACSPO VIIRS L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensor. Each grid cell contains the 1 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 day - day time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for a single day-time period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 1 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/52ad55a5-b537-4e10-8a81-22d9317c81f2)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 day - day and night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTfnd product for a single 24 hour period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 24 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations indicate typical 2014 biases of < 0.01 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day and night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/d7f3178d-869a-4eac-959d-71d1f5e24888)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - GeoPolar Multi Sensor - 1 day - night time - Australia","recordAbstract":"This is a GeoPolar Multi-sensor SSTskin L3S product for a single night-time period, derived using sea surface temperature retrievals from the AHI sensor on the Himawari-8, the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The GeoPolar Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Govekar et al. (2022) https://doi.org/10.3390/rs14153785 and Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - SNPP - 1 day - night time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single night-time period, derived using observations from the VIIRS instrument on the Suomi-NPP satellite. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only night time passes are included in the product. The quality level for each pixel was remapped using the original ACSPO VIIRS L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensor. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 3 day - night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for three consecutive night-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 3 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.02 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/b28ab00c-06f9-4cef-9053-4ff3bf537bb7)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L4 - GAMSSA - World","recordAbstract":"An International Group for High-Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis, produced daily on an operational basis at the Australian Bureau of Meteorology using optimal interpolation (OI) on a global 0.25 degree grid. This Global Australian Multi-Sensor SST Analysis (GAMSSA) v1.0 system blends infra-red SST observations from the Advanced Very High Resolution Radiometer (AVHRR) on NOAA and METOP polar-orbiting satellites, microwave SST observations from the Advanced Microwave Scanning Radiometer-2 (AMSR-2) on GCOM-W, and in situ data from ships, and drifting and moored buoys from the Global Telecommunications System (GTS). \n\nAll SST observations are filtered for those values suspected to be affected by diurnal warming by excluding cases which have experienced recent surface wind speeds of below 6 m/s during the day and less than 2 m/s during the night, thereby resulting in daily foundation SST estimates that are largely free of diurnal warming effects."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 1 day - day and night time - Southern Ocean","recordAbstract":"This is a single-sensor SSTfnd product for a single 24 hour period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Each grid cell contains the 24 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations indicate typical 2014 biases of < 0.01 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day and night time - Southern Ocean (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/4a136fc6-3ac7-4af1-870f-f5827d6dfcb4)."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3U - NOAA 19 - Australia","recordAbstract":"This is a single sensor, single swath SSTskin product for a single overpass, without distinction between day or night. It is derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains a single observation from the AVHRR radiometer. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for a single day-time period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 3 day - day time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for three consecutive night-time periods, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only day time passes are included in the product. Each grid cell contains the 3 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.1 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 6 day - day and night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTfnd product for a 144 hour period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 144 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations for the central date indicate typical 2014 biases of < 0.03 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 6 day - day and night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/95b81267-bad2-4939-8559-45b0d0c6f2e9)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 day - day and night time - Southern Ocean","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a single 24 hour period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 3E to 158W, 27S to 78S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 24 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - day and night time - Australia","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a single 72 hour period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 72 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - NOAA 19 - 1 day - night time - Australia","recordAbstract":"This is a single sensor, multiple swath SSTskin product for a single night-time period, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Only night time passes are included in the product. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR productsMatchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day and night time - Southern Ocean","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a one month period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 3E to 158W, 27S to 78S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/\nsstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - day time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for three consecutive day-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 3 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3C - Himawari-8 - 4 hour - Australia","recordAbstract":"This is a regional GHRSST level 3 collated (L3C) dataset on 0.02-degree rectangular grid over the Australasian domain (70E to 190E, 70S to 20N) based on retrievals from the AHI imager on board Himawari-8 satellite. The Bureau of Meteorology (Bureau) produces Integrated Marine Observing System (IMOS) satellite SST products in the International Group for High Resolution SST (GHRSST) GDS2 file formats for Himawari-8 in real time and delayed mode. This product is composed of reprocessed multi-swath SSTskin retrievals obtained from compositing IMOS Himawari-8 hourly L3C files over the night (before dawn). \n\n\nEvery 10 minutes, the Himawari-8 full disk is processed to retrieve SSTs by using the Radiative Transfer Model (RTTOV12.3) and Bayesian cloud clearing method based on the ESA CCI SST code developed at the University of Reading. The hourly product on the native grid is then produced by compositing over multiple swaths for the previous 1 hour by selecting the highest quality data with priority given to the value closest in time to the product nominal hour. L3C-04hour SSTs are the latest 4-hour pixels with the highest quality taken from the hourly SST product. The L3C-04hour product on native grid is then remapped over the 0.02-degree IMOS grid to compose the IMOS L3C-04hour product (Govekar et al., 2021, https://www.foo.org.au/wp-content/uploads/2021/11/Govekar_FOO_2021.pdf). The product format is compliant with the GHRSST Data Specification (GDS) version 2."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - night time - Australia","recordAbstract":"This is a multi-sensor SSTskin L3S product for 1 month of consecutive night-time periods, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 3 day - day and night time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTfnd product for a 72 hour period, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 72 hour average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. The SSTfnd is derived by adding a constant 0.17 degC to the SSTskin observations after rejecting observations with low surface wind speeds (<6m/s by day and <2m/s at night) (see http://www.bom.gov.au/amoj/docs/2011/beggs.pdf). Matchups with buoy SSTfnd observations for the central date indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - day and night time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/4cbb9eeb-9ed3-4079-a180-2293a2c219b9)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Single Sensor - 3 day - day time - Australia","recordAbstract":"This is a single-sensor multi-satellite SSTskin product for three consecutive day-time periods, derived using observations from AVHRR instruments on all available NOAA polar-orbiting satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70°E to 170°W, 20°N to 70°S. Each grid cell contains the 3 day average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data/product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR products. Matchups with buoy SST observations for the central date (adjusted to skin depths) indicate typical 2014 biases of < 0.2 degC and standard deviations of 0.6 degC. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.\n\nProduction of this single sensor product ceased in June 2025, due to decommissioning of the NOAA-18 satellite. Please refer to the following multi sensor product for data after June 2025 - IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 3 day - day time - Australia (https://catalogue-imos.aodn.org.au/geonetwork/srv/eng/catalog.search#/metadata/08e04227-4da1-479b-bec1-06ee27a69a40)"}
- {"title":"IMOS - Satellite Remote Sensing - SST - L3S - Multi Sensor - 1 month - day and night time - Australia","recordAbstract":"This is a multi-sensor SSTfnd L3S product for a one month period, derived using sea surface temperature retrievals from the VIIRS sensor on the Suomi-NPP satellite and JPSS series of satellites, and AVHRR sensor on the NOAA and Metop series of Polar-orbiting satellites. The sensors and satellite platforms contributing to each file are listed in the sensor and platform global attributes in the file header. The SSTfnd is derived by adding a constant 0.17 degC to the NOAA AVHRR SSTskin observations, and 0 degC to the Metop and VIIRS SSTsubskin observations, after rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night). The Multi-sensor L3S product is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the region 70E to 170W, 20N to 70S. The quality level for each pixel was remapped using the original ACSPO VIIRS and AVHRR L3U quality levels and Sensor Specific Error Statistics (SSES), as described in Griffin et al. (2017) Appendix at http://imos.org.au/facilities/srs/sstproducts/sstdata0/sstdata-references/, before compositing single swaths from the sensors. Each grid cell contains the 1 month average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html for further information."}
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