Data Set Citation
NCEAS 12192: Fleishman: Ecosystem analysis of pelagic organism declines in the Upper San Francisco Estuary, National Center for Ecological Analysis and Synthesis, and IEP D of Interagency Ecological Program.2008.POD! Water-Flows Dayflow_1956-200_Delta daily flow data.
nceas.913.4 (http://knb.ecoinformatics.org/knb/metacat/nceas.913.4/nceas).
Data Tables, Images, and Other Entities:
Metadata download:Ecological Metadata Language (EML) File
Data Table:Copy of Dayflow_1956-2007.csv (View Metadata | Download File download)
Online Distribution Info:
Download File: http://www.iep.ca.gov/dayflow/index.html
Offline Distribution Info:
Medium:digital
Data Set Owner(s):
Organization:NCEAS 12192: Fleishman: Ecosystem analysis of pelagic organism declines in the Upper San Francisco Estuary
Organization:National Center for Ecological Analysis and Synthesis
Individual: Dayflow Program Manager IEP
Organization:Interagency Ecological Program
Address:
Select state or territory here.
Email Address:
cenright@water.ca.gov
Metadata Provider(s):
Individual: Marissa Bauer
Associated Party:
Individual: Dayflow Program Manager IEP
Role:
associatedParty
Abstract:
 
Dayflow is a computer program developed in 1978 as an accounting tool for determining historical Delta boundary hydrology. Dayflow output is used extensively in studies initiated by the Department of Water Resources (DWR), the Department of Fish and Game (DFG), and less frequently by other State and Federal agencies [e.g., U. S. Bureau of Reclamation (USBR)] and private consultants. The Dayflow program presently provides an estimate of historical mean daily flows: through the Delta Cross Channel and Georgiana Slough past Jersey Point past Chipps Island to San Francisco Bay (net Delta outflow) The degree of accuracy of Dayflow output is affected by the Dayflow computational scheme and the accuracy and limitations of the input data. The input data include the principal Delta stream inflows, Delta precipitation, Delta exports, and Delta gross channel depletions. These data include both monitored and estimated values as described in the Dayflow program documentation. An example of the limitations of Dayflow output can be seen by comparing estimated Net Delta Outflow (Net Delta Outflow Index [NDOI]) and measured Net Delta Outflow. Currently, flows are not routed to account for travel time through the Delta. All calculations involving inflows, depletions, transfers, exports, and outflow are performed using data for the same day. All Dayflow summary reports distributed through January 1985, providing flow data through August 1984, and data for September 1984 reported herein were generated according to the algorithm described in the Computational Scheme section.
License and Usage Rights:
 
no restrictions
Geographic Coverage:
Geographic Description:San Francisco Bay-Delta
Bounding Coordinates:
West:  122.3833  degrees
East:  122.3833  degrees
North:  38.0833  degrees
South:  38.0833  degrees
Temporal Coverage:
Begin:
1956
End:
2007
Contact:
Individual: Dayflow Program Manager IEP
Organization:Interagency Ecological Program
Address:
Select state or territory here.
Email Address:
cenright@water.ca.gov
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