Oceanographic, water-quality, bathymetric, and discharge data from Whales Tail Marsh tidal creeks, South San Francisco Bay, California, 2021-2023

The U.S. Geological Survey Pacific Coastal and Marine Science Center made observations of hydrodynamics, water quality, and sediment transport in Whales Tail South Marsh in the Eden Landing Ecological Reserve in Alameda County, California during summer 2021 and winter 2021-2022. Details on station location, instrumentation, and measured variables are included in the metadata for each data type. Bathymetric data of tidal creeks were collected with a shallow draft vessel on 12/14/2023. The data were collected to determine sediment supply and sediment delivery to marshes during varying tidal and wave conditions with the goal of more accurately predicting the fate of marshes and optimizing management actions. Data were collected as part of a collaborative study with the USGS Western Ecological Research Center. These data are intended for science researchers, students, policy makers, and the general public.