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  4. Water quality, nutrient, and phytoplankton data from Franks Tract, Mildred Island, and neighboring channels in the California Sacramento-San Joaquin Delta: 2022 and 2023 High-resolution mapping surveys

Water quality, nutrient, and phytoplankton data from Franks Tract, Mildred Island, and neighboring channels in the California Sacramento-San Joaquin Delta: 2022 and 2023 High-resolution mapping surveys

Dates

Publication Date
Time Period
2022-06-07
Time Period
2022-06-21
Time Period
2022-07-27
Time Period
2022-08-09
Time Period
2022-10-12
Time Period
2022-11-30
Time Period
2023-02-21

Citation

Bouma-Gregson, K., O’Donnell, K., Uebner, M.Q., Sturgeon, C.L., Cone, K.M., Jaegge, A.C., Brinkman, J.D., Bergamaschi, B.A., Kraus, T.E.C., 2023, Water quality, nutrient, and phytoplankton data from Franks Tract, Mildred Island, and neighboring channels in the California Sacramento-San Joaquin Delta: 2022 and 2023 High-resolution mapping surveys: U.S. Geological Survey data release, https://doi.org/10.5066/P9TDMWDH.

Summary

Surface water quality, water isotope, and phytoplankton enumeration data were collected to evaluate the impact of an Emergency Drought Barrier (EDB) in False River in the Sacramento-San Joaquin Delta. Data were collected on six days during 2022 and 2023 (June 7, June 21, July 27, August 9, October 12, November 30, 2022, and February 21, 2023). Sampling occurred in Franks Tract, Mildred Island, the San Joaquin River, and various sloughs and cuts connecting these water bodies. High-resolution boat-based mapping data and discrete water samples were collected and analyzed for: nitrate, nitrite, ammonium, soluble reactive phosphorus (orthophosphate), total dissolved nitrogen, total dissolved phosphorus, total phosphorus, total particulate [...]

Contacts

Point of Contact :
Keith Bouma-Gregson
Originator :
Keith Bouma-Gregson, Katy O'Donnell, Maura Q Uebner, Crystal L Sturgeon, Katrina M Cone, Andrea C Jaegge, Jacob D Brinkman, Brian A Bergamaschi, Tamara E C Kraus
Metadata Contact :
Maura Q Uebner
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
California Water Science Center

Attached Files

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FranksTract_2022-2023_metadata.xml
Original FGDC Metadata
View 		42.72 KB application/fgdc+xml
FranksTract_2022-2023_HR.txt 35.82 MB text/plain
FranksTract_2022-2023_PE.txt 160.42 KB text/plain
FranksTract_2022_DS.txt 64.83 KB text/plain
FranksTract_2022-2023_DataDictionary.xlsx 32.09 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
FranksTract_2022-2023_methods.docx 59.3 KB application/vnd.openxmlformats-officedocument.wordprocessingml.document

Purpose

During the 2020-2022 California drought, the California Department of Water Resources installed an emergency drought barrier (EDB) in west False River in the Sacramento-San Joaquin Delta (Delta). The EDB blocks water flow through west False River, which prevents higher salinity water from entering the central Delta via Franks Tract. Preventing saltwater from intruding into the central Delta is essential because a large portion of the state’s fresh water exported from the Delta for drinking water, agricultural and urban transits through this region. While preventing saltwater intrusion into Franks Tract, the EDB also changes the hydrology of the region, which may alter water residence times and the phytoplankton community in Franks Tract. Water quality sampling was conducted during and following the installation of the EDB to help evaluate its impact on water residence time, water quality, and phytoplankton.

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  • USGS California Water Science Center
  • USGS Data Release Products

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9TDMWDH

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