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High-speed mapping of water isotopes and residence time in Cache Slough Complex, San Francisco Bay Delta, CA Real-time, high frequency (1-second sample interval) GPS location, water quality, and water isotope (δ2H, δ18O) data was collected in the Cache Slough Complex (CSC), located in the northern San Francisco Bay Delta (SFBD). Data was collected on 10/01/2014 for an approximate 4-hour period (10:30 – 14:30 h PST) while underway on the R/V Mary Landsteiner, a 26-foot USGS vessel. Sample water was pumped continuously through a pickup tube, passed through a 178 micron pre-filter, a de-bubbler, and diverted through a 0.2 micron filter and an unfiltered flow path to water quality instrumentation. The real-time data were recorded using a Campbell Scientific CR-6 data logger. Water isotopes (δ2H, δ18O) were logged to a separate... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Cache Slough, Ecology, Geochemistry, Hydrogeology, All tags... Liberty Cut, Liberty Island, Lindsey Slough, Little Holland Tract, Prospect Slough, Sacramento River, Sacramento-San Joaquin Delta, Shag Slough, Toe Drain, USGS Science Data Catalog (SDC), algae, chlorophyll a, hydrodynamics, isotopes, nitrate nitrogen, nitrogen, real-time data, surface water quality, Fewer tags