WSP12894

• 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

III. Introduction: Project History and Progress

being developed that can be part of a larger
decision support framework or used
independently. Data gathered for the project is
stored in a spatial database system (SPGIS) and
distributed to users via the internet and Compact
Disks (CDs).

During 1995-96, project efforts focused on
spatial data collection and evaluation. A GIS
tool was developed as an extension to ArcView
3.0+ to provide users the capability to view and
use spatial data, such as themes for irrigated
lands, well locations, stream depletion factors,
hydrography, weather stations, county
boundaries, roads, and cities.

During 1997-98, project efforts focused on
developing a Consumptive Use (SPCU) model
and an interface for a Stream Depletion Factor
(SDF) model. Satellite images were purchased to
determine irrigated land area, field delineation,
and crop type classifications. A Graphical User
Interface (GUI) for the CU model was begun.

During 1998-99, efforts focused on the release
of the Stream Depletion Factor (SDF) interface
called SDF View and developing

documentation. SDF View can be used to
estimate the lag time between when irrigation
well water is pumped from, or water is recharged
to, an alluvial unconfined river aquifer and when
a depletion or accretion happens in the river.
SDF View has been used in developing managed
groundwater recharge as a water supply in
Colorado, Nebraska and Wyoming for a future
Platte Basin Endangered Species Recovery
Program.

The focus during the last year of the project
(2000) was to finish the SPGIS, SDF View and
SPCU Model Interfaces and provide
documentation to the satisfaction of the
participants. This conclusion provides a well-
defined set of deliverables and brings to a
closure the initial goals of the project.

One of the major tasks completed this last year
was the development of the SPCU Model as a
stand-alone interface. Additional methods and
options have been added to the model. For
example the SPCU Model can retrieve data from
the statewide database being developed by the
state engineer's office called HYDROBASE.

Completion Report: South Platte Mapping and Analysis Program

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