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Title: Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.

Abstract

The annual operation plans described in the following sections require detailed system regulation computer model studies. These system regulation studies are necessary to evaluate potential new projects and to develop operational rule curves for the existing system of projects. The objective is to provide a basis for evaluating alternative system regulation scenarios. This provides essential input for optimizing the management of existing projects and planning future projects for the most beneficial use of the water supply and resources in the entire region. Historical streamflows per se are inadequate for system regulation studies because the pattern of observed flow has continually changed with each successive stage of irrigation and e development. The problem, therefore, is to adjust for past operation of storage projects and to determine the necessary adjustments that should be made to recorded flows to reflect current stages of irrigation development. Historical flows which have been adjusted to a common level of irrigation development by correcting for the effects of diversion demand, return flow, and change-of-contents and evaporation in upstream reservoirs and lakes are referred to as modified flows. This report describes the development of irrigation depletion adjustments and modified flows for the 1990 level of development for themore » 61-year period 1928--1989. incremental depletion adjustments were computed in this report for each month of the 61-year period to adjust the effects of actual irrigation in each year up to that which would have been experienced with the irrigation as practiced in 1990.« less

Authors:
;
Publication Date:
Research Org.:
USDOE Bonneville Power Administration, Portland, OR (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10185876
Report Number(s):
DOE/BP-21985-7
ON: DE94000949
DOE Contract Number:  
AC79-92BP21985
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Apr 1993
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; COLUMBIA RIVER; FLOW RATE; COASTAL REGIONS; STREAMS; CORRECTIONS; WASHINGTON; IRRIGATION; STORAGE; BONNEVILLE POWER ADMINISTRATION; INFORMATION; OPERATION; Stream measurements - Columbia River Watershed; 130100; RESOURCES AND AVAILABILITY

Citation Formats

United States. Bonneville Power Administration, and A.G. Crook Company. Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.. United States: N. p., 1993. Web. doi:10.2172/10185876.
United States. Bonneville Power Administration, & A.G. Crook Company. Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.. United States. https://doi.org/10.2172/10185876
United States. Bonneville Power Administration, and A.G. Crook Company. 1993. "Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.". United States. https://doi.org/10.2172/10185876. https://www.osti.gov/servlets/purl/10185876.
@article{osti_10185876,
title = {Modified Streamflows 1990 Level of Irrigation : Columbia River and Coastal Basins, 1928-1989.},
author = {United States. Bonneville Power Administration and A.G. Crook Company},
abstractNote = {The annual operation plans described in the following sections require detailed system regulation computer model studies. These system regulation studies are necessary to evaluate potential new projects and to develop operational rule curves for the existing system of projects. The objective is to provide a basis for evaluating alternative system regulation scenarios. This provides essential input for optimizing the management of existing projects and planning future projects for the most beneficial use of the water supply and resources in the entire region. Historical streamflows per se are inadequate for system regulation studies because the pattern of observed flow has continually changed with each successive stage of irrigation and e development. The problem, therefore, is to adjust for past operation of storage projects and to determine the necessary adjustments that should be made to recorded flows to reflect current stages of irrigation development. Historical flows which have been adjusted to a common level of irrigation development by correcting for the effects of diversion demand, return flow, and change-of-contents and evaporation in upstream reservoirs and lakes are referred to as modified flows. This report describes the development of irrigation depletion adjustments and modified flows for the 1990 level of development for the 61-year period 1928--1989. incremental depletion adjustments were computed in this report for each month of the 61-year period to adjust the effects of actual irrigation in each year up to that which would have been experienced with the irrigation as practiced in 1990.},
doi = {10.2172/10185876},
url = {https://www.osti.gov/biblio/10185876}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Apr 01 00:00:00 EST 1993},
month = {Thu Apr 01 00:00:00 EST 1993}
}