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Water Quality of San Francisco Bay
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How to cite data from this website:

The following database data can cited in publications using the citations below: discrete and calculated chlorophyll, discrete and calculated oxygen, discrete and calculated SPM, extinction coefficient, salinity, temperature, and nutrients.

Data from 2016 and after should be cited in publications as:

Schraga, T.S., Nejad, E.S., Martin, C.A., and Cloern, J.E., 2018, USGS measurements of water quality in San Francisco Bay (CA), beginning in 2016 (ver. 2.0, June 2018): U.S. Geological Survey data release,

Data from each year are added to this citation in April of the following year, e.g. 2017 data will be added in April 2018

Data from 1969-2015 should be cited in publications as:

Schraga, T.S. & Cloern, J.E. Water Quality Measurements in San Francisco Bay by the U.S.Geological Survey, 1969-2015. Scientific Data 4:170098 doi:10.1038/sdata.2017.98 (2017).

The 1969-1998 data were originally documented in USGS Open-File data reports listed here

Check out our phytoplankton taxonomy data from 1992-2014 and 2014 and beyond available on the USGS ScienceBase repository.


Please let us know if you use our data in a publication, thesis, report, as a teaching tool, etc... (email Thank you for helping us document use and keep this website going.

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