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WSP12894
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Last modified
1/26/2010 4:19:22 PM
Creation date
3/24/2008 2:51:42 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8483
Description
SPDSS
State
CO
Basin
South Platte
Date
1/1/2001
Author
CWRRI
Title
South Platte Mapping and Analysis Program (SPMAP) Decision Support Tools for the Lower South Platte
Water Supply Pro - Doc Type
Publication
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<br />III. Introduction: South Platte Advisory Committee <br /> <br />ArcView version 3.0+ was selected for the <br />GIS platform, and an extension to Arc View <br />using the A venue scripting language was <br />constructed. This system provides the analysis <br />power of ArcView along with specially designed <br />scripts and customized menus that allow users to <br />view, select and analyze data. <br /> <br />Based on crop and weather data, managers can <br />estimate the CU of ground and surface water in <br />agricultural areas. Input for the SPCU Model can <br />be developed through the GIS themes and spatial <br />analysis features of SPGIS or can be entered <br />directly into the SPCU Model interface. The <br />SPCU model can compute montWy CU with the <br />Blaney-Criddle and/or Kimberly-Penman <br />methods or daily using the Penman-Monteith <br /> <br />3.0 South Platte Advisory Committee <br /> <br />method. The output from different methods can <br />be compared, and the Stream Depletion Factor <br />Model (SDF View) can be run to estimate <br />impacts on the South Platte River. <br /> <br />Water managers use Stream Depletion Factors <br />(SDF) to determine the lag time between when <br />irrigation well water is pumped from, or water is <br />recharged to, the alluvial unconfined aquifer and <br />when a depletion or accretion happens in the <br />river. Based on CU of groundwater the <br />augmentation requirements to replace water <br />depleted from the South Platte River due to <br />consumptive use from well pumping can be <br />estimated. The model can also be used to <br />estimate recharge rates for a given groundwater <br />recharge system. <br /> <br />Since the focus of any tool or data <br />development project should be to meet the. needs <br />of software users, close coordination with water <br />providers in the basin at all stages was essential <br />to this project's success. This close coordination <br />was achieved by having regular meetings with <br />the Advisory Committee (every 6 weeks) to <br />review the development of the software and <br />identify enhancements. The committee was <br />comprised of representatives from: <br /> <br />· Northern Colorado Water Conservancy <br />District (NCWCD) <br /> <br />· South Platte Lower River Group, Inc. <br />(SPLRG) <br /> <br />· Central Colorado Water Conservancy <br />District (CCWCD) <br /> <br />· Groundwater Appropriators of the South <br />Platte (GASP) <br /> <br />· Colorado State Engineers Office (SEO), <br />Division 1 <br /> <br />· Lower South Platte Water Conservancy <br />District (LSPWCD) <br /> <br />· City of Greeley (Greeley) <br /> <br />· City of Fort Collins (Fort Collins) <br /> <br />· Colorado Water Resources Research <br />Institute (CWRRI) <br /> <br />The Advisory Committee identified the data <br />needs and development of a spatial database and <br />analytical tools (SPGIS), a model to calculated <br />consumptive use (SPCU), and an interface to <br />estimate stream depletion (SDF View) from <br />consumptive use of groundwater as their most <br />pressing needs for the Lower South Platte River <br />Basin. This is partly because the out-of-priority <br />impact of groundwater well pumping on the <br />South Platte River flows must be augmented. <br /> <br />The SPMAP software is currently being used <br />to meet the needs of organizations represented in <br />the advisory committee and others to develop <br />and operate augmentation plans, evaluate <br />groundwater recharge systems. <br /> <br />Completion Report: South Platte Mapping and Analysis Program <br /> <br />5 <br />
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