Interagency Ecological Program: Data for Synthesis for Ecological Impacts of Drought in the Upper San Francisco Estuary, 1975-2021

Multi-year droughts are important and impactful features of California’s Mediterranean climate and can fundamentally affect the water quality and the ecosystem response of the San Francisco Estuary and the Sacramento-San Joaquin Delta.

This data set was assembled from data collected by long-term monitoring programs over the past 46 years (1975-2021) to evaluate how the estuary changed during multi-year droughts. Data include fish, zooplankton, jellyfish, clams, temperature, Secchi depth, and salinity as measured by fish and water quality surveys, as well as nutrients and chlorophyll measured by water quality surveys. These data are accompanied by hydrologic metrics including Delta Inflow, Delta Outflow, the position of the 2-PSU isohaline, residence time, and daily values of various continuous water quality stations located in the Delta. ## About This Federated Record This CNRA Open Data Platform record is based on metadata federated from the Environmental Data Initiative (EDI) Data Portal.