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Representation of recharge from canal leakage for calibration of Eastern Snake Plain Aquifer Model Version 2, as built, Revision 1. Technical report 200907. ESPAM2 design document DDW-V2-01-Rev1 As Built Canal Recharge Item Info

This report is a Design Document for the calibration of the Eastern Snake Plain Aquifer Model Version 2 (ESPAM 2). Its goals are similar to the goals of Design Documents for ESPAM 1.1: To provide full transparency of modeling data, decisions and calibration; and to seek input from representatives of various stakeholders so that the resulting product can be the best possible technical representation of the physical system (given constraints of time, funding and personnel). It is anticipated that for some topics, a single Design Document will serve these purposes prior to issuance of a final report. For other topics, a draft document will be followed by one or more revisions and a final "as-built" Design Document. Superseded Design Documents will be maintained in a "superseded" file folder on the project Website, and successive versions will be maintained in a "current" folder. This will provide additional documentation of project history and the development of ideas. This is Revision 1 of the October 2009 As-built document (Contor, 2009). Revision was necessary due to adjustments made to accommodate the On-Farm algorithm of recharge-calculation software MKMOD adopted by IDWR. As described in ESPAM1.1 Design Document DDW-020 (Contor, 2004), water that seeps from the bed of ditches and canals is direct recharge to the aquifer and is unavailable for delivery to farm fields1 (and therefore unavailable for crop evapotranspiration, return flows to the surface-water source, or in-field incidental recharge). In the ESPAM1.1 representation, as well as the previous ESPAM2 representation, recharge from canal seepage affected the spatial distribution of modeled recharge, but did not affect the mass balance of recharge or the aquifer water budget. With the adoption of the On-Farm algorithm, canal seepage is subtracted from gross diversions before the field-headgate delivery volume is calculated. Depending on the calculated adequacy of field-headgate deliveries, the On-Farm algorithm can change the water budget. With this realization, IWRRI proposed and the ESHMC concurred that a second look at canal seepage was necessary. This Design Document reports on the canal-seepage estimates that resulted from this attempt at refinement. Further data and discussion are posted by Idaho Department of Water Resources (IDWR, 2010a, 2010b).

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Title:
Representation of recharge from canal leakage for calibration of Eastern Snake Plain Aquifer Model Version 2, as built, Revision 1. Technical report 200907. ESPAM2 design document DDW-V2-01-Rev1 As Built Canal Recharge
Authors:
Contor, Bryce A.
Date Created (ISO Standard):
2010-11-04
Description:
This report is a Design Document for the calibration of the Eastern Snake Plain Aquifer Model Version 2 (ESPAM 2). Its goals are similar to the goals of Design Documents for ESPAM 1.1: To provide full transparency of modeling data, decisions and calibration; and to seek input from representatives of various stakeholders so that the resulting product can be the best possible technical representation of the physical system (given constraints of time, funding and personnel). It is anticipated that for some topics, a single Design Document will serve these purposes prior to issuance of a final report. For other topics, a draft document will be followed by one or more revisions and a final "as-built" Design Document. Superseded Design Documents will be maintained in a "superseded" file folder on the project Website, and successive versions will be maintained in a "current" folder. This will provide additional documentation of project history and the development of ideas. This is Revision 1 of the October 2009 As-built document (Contor, 2009). Revision was necessary due to adjustments made to accommodate the On-Farm algorithm of recharge-calculation software MKMOD adopted by IDWR. As described in ESPAM1.1 Design Document DDW-020 (Contor, 2004), water that seeps from the bed of ditches and canals is direct recharge to the aquifer and is unavailable for delivery to farm fields1 (and therefore unavailable for crop evapotranspiration, return flows to the surface-water source, or in-field incidental recharge). In the ESPAM1.1 representation, as well as the previous ESPAM2 representation, recharge from canal seepage affected the spatial distribution of modeled recharge, but did not affect the mass balance of recharge or the aquifer water budget. With the adoption of the On-Farm algorithm, canal seepage is subtracted from gross diversions before the field-headgate delivery volume is calculated. Depending on the calculated adequacy of field-headgate deliveries, the On-Farm algorithm can change the water budget. With this realization, IWRRI proposed and the ESHMC concurred that a second look at canal seepage was necessary. This Design Document reports on the canal-seepage estimates that resulted from this attempt at refinement. Further data and discussion are posted by Idaho Department of Water Resources (IDWR, 2010a, 2010b).
Subjects:
Aquifers Computer models
Location:
Eastern Snake Plain Aquifer; Southern Idaho
Collection:
Boise Basin
Series:
ESPAM2
IWRRI number:
200907_rev1
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
Publisher:
Idaho Water Resources Research Institute; University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
KIT

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Preferred Citation:
"Representation of recharge from canal leakage for calibration of Eastern Snake Plain Aquifer Model Version 2, as built, Revision 1. Technical report 200907. ESPAM2 design document DDW-V2-01-Rev1 As Built Canal Recharge", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-200907_rev1.html
Rights
Rights:
In copyright, educational use permitted. Educational use includes non-commercial reproduction of text and images in materials for teaching and research purposes. For other contexts beyond fair use, including digital reproduction, please contact the University of Idaho Library Special Collections and Archives Department at libspec@uidaho.edu. The University of Idaho Library is not liable for any violations of the law by users.
Standardized Rights:
http://rightsstatements.org/vocab/InC-EDU/1.0/
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