USGS Measurements of Water Quality in San Francisco Bay (CA), 2016-2021 (ver. 4.0, March 2023)
Dates
Publication Date
2018-02-13
Revision
2018-06-20
Revision
2020-03-30
Last Revision
2023-03-07
Citation
Schraga, T.S., Nejad, E.S., Martin, C.A., and Cloern, J.E., 2018, USGS Measurements of Water Quality in San Francisco Bay (CA), 2016-2021 (ver. 4.0, March 2023): U.S. Geological Survey data release, https://doi.org/10.5066/F7D21WGF.
Summary
The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. This U.S.G.S. Data Release archives and makes available all measurements from 2016-2021, and is a continuation of the previously published 1969-2015 dataset (Cloern and Schraga, 2016; Schraga and Cloern, 2017). Water-quality constituent measurements include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, and dissolved inorganic nutrients (nitrate, nitrite, ammonium, phosphate and silicate). The sampling was conducted at least monthly at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bay to [...]
Summary
The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. This U.S.G.S. Data Release archives and makes available all measurements from 2016-2021, and is a continuation of the previously published 1969-2015 dataset (Cloern and Schraga, 2016; Schraga and Cloern, 2017). Water-quality constituent measurements include salinity, temperature, light attenuation coefficient, and concentrations of chlorophyll-a, dissolved oxygen, suspended particulate matter, and dissolved inorganic nutrients (nitrate, nitrite, ammonium, phosphate and silicate). The sampling was conducted at least monthly at 37 fixed sampling locations along a 145-km transect from lower South San Francisco Bay to the lower Sacramento River. A map and table of sampling locations are included in the Attached Files section. The project website contains information about this research program and data collection, including a database containing the full 1969-present dataset available for download: https://sfbay.wr.usgs.gov/water-quality-database/
Click on title to download individual files attached to this item.
USGS_Measurements_of_Water_Quality_in_San_Francisco_Bay_CA_2016_2021 (ver. 4.0, March 2023).xml Original FGDC Metadata
View
34.97 KB
application/fgdc+xml
SFBay_station_map.pdf “Map of Sampling Stations”
830.77 KB
application/pdf
2016_2021SanFranciscoBayWaterQualityData.csv
2.37 MB
text/csv
SFBay_TableofStationLocations_v4.csv
1.03 KB
text/csv
VersionHistory.txt
3.7 KB
text/plain
Related External Resources
Type: Related Primary Publication
Schraga, T.S., and Cloern, J.E., 2017, Water Quality Measurements in San Francisco Bay by the U.S.Geological Survey, 1969-2015: Scientific Data 4:170098, https://doi.org/10.1038/sdata.2017.98.
Cloern, J.E., Schraga, T.S., Nejad, E., Martin, C., 2020, Nutrient Status of San Francisco Bay and Its Management Implications. Estuaries and Coasts. https://doi.org/10.1007/s12237-020-00737-w
The dataset was collected to measure spatial and temporal patterns of water-quality variability in San Francisco Bay as a component of long-term research to understand how estuarine-coastal ecosystems change in response to human activities and climate variability.
