Estuary Water Elevation Research (EWER)

Updated: 2026-02-10

The Estuary Water Elevation Research (EWER) dataset, which comprises 12,072 years of non-flagged water level observations from 724 unique gauges across tidal environments, principally estuaries, but also bays and open-coast sites. The dataset brings together disparate national and state agency records to improve coverage of estuarine systems, including upstream tidal rivers that are often excluded from ocean-focused products. For more information on the dataset, please see the published paper: https://doi.org/10.1002/gdj3.70099