Spatial surveys of water column physical properties were acquired with a conductivity-temperature-depth (CTD) profiler for five (5) surveys in summer 2021 and three (3) surveys in winter 2021-2022 during king tides along transects of tidal creeks in the Whales Tail Marsh, South San Francisco Bay, California. The data are provided in netCDF files.

Whales Tail Marsh, a restored salt pond in South San Francisco Bay, California, is experiencing rapid shoreline erosion. Determining whether the eroded sediment is exported to the ocean or imported via tidal channels and deposited on the marsh platform is critical to understanding the long-term response of the marsh to wave attack and sea-level rise. Quantifying water-column sediment flux helps to characterize the role of tidal channels in this process, and water discharge is a key component of sediment flux. To that end, discharge was measured repeatedly over diurnal tidal cycles in the tidal channels of the Whales Tail Marsh, within Eden Landing Ecological Refuge, California in the summer of 2021 and during king tides in the winter of 2021-2022. These transect data were collected by using a downward-looking Teledyne RDI RiverPro 1200-kilohertz acoustic doppler current profiler (ADCP) from a moving boat.

Hydrodynamic and sediment transport time-series data, including water depth, velocity, turbidity, conductivity, and temperature, were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center in South San Francisco Bay and in the Whale's Tail South marsh in Eden Landing Ecological Reserve in Alameda County, CA in 2021 and 2022. Data files are grouped by data type and season (summer and winter). At Bay sites, instruments were deployed on small quadpods. In the tidal creek, instruments were attached to grates mounted directly on the sediment bed. Marsh sites consisted of one transect of six stations perpendicular to the bay-marsh interface, and a second transect perpendicular to a tidal creek. Note that marsh stations were positioned fairly high in the tidal frame (close to the mean higher-high water elevation), so they were inundated less than 10 percent of the time. Instruments at the Bay stations were inundated most of the time but were subaerial at low tide. Data are only valid when the instruments were submerged. Users are advised to assess data quality carefully, and to check metadata for instrument information, as platform deployment times and data-processing methods varied.

Hydrodynamic and sediment transport time-series data, including water depth, velocity, turbidity, conductivity, and temperature, were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center in South San Francisco Bay and in the Whale's Tail South marsh in Eden Landing Ecological Reserve in Alameda County, CA in 2021 and 2022. Data files are grouped by data type and season (summer and winter). At Bay sites, instruments were deployed on small quadpods. In the tidal creek, instruments were attached to grates mounted directly on the sediment bed. Marsh sites consisted of one transect of six stations perpendicular to the bay-marsh interface, and a second transect perpendicular to a tidal creek. Note that marsh stations were positioned fairly high in the tidal frame (close to the mean higher-high water elevation), so they were inundated less than 10 percent of the time. Instruments at the Bay stations were inundated most of the time but were subaerial at low tide. Data are only valid when the instruments were submerged. Users are advised to assess data quality carefully, and to check metadata for instrument information, as platform deployment times and data-processing methods varied.

Topographic data were collected in the Whale's Tail marsh in southern San Francisco Bay between December 2021 and January 2022. The topographic data were acquired using global satellite navigation system receivers mounted on backpacks and hiked over the marsh surface.

Files contain hydrodynamic and sediment transport data for the location and deployment indicated. Time-series data of water depth, velocity, turbidity, and temperature were collected in San Pablo Bay and China Camp Marsh as part of the San Francisco Bay Marsh Sediment Experiments. Several instruments were deployed in tidal creek, marsh, mudflat, and Bay locations, gathering data on water depth, velocity, salinity/temperature, and turbidity. Deployment data are grouped by region (Bay channel (main Bay), Bay shallows, tidal creek, or marsh/mudflat/upper tidal creek). Users are advised to check metadata and instrument information carefully for applicable time periods of specific data, as individual instrument deployment times vary.