Decision Support Systems
4/17/2013 9:26:40 AM
8/11/2008 1:11:50 PM
Decision Support Systems
SPDSS Task 48.2 - Development of Calibration Targets and Criteria - Phase 4
This Technical Memorandum was undertaken under Task 48.2 of Phase 4 of the SPDSS, to develop calibration criteria, including selection of field data (targets) to be used during the model calibration. This TM summarizes the methodology and data that are anticipated to be used in the model calibration process.
Decision Support - Doc Type
SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
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SPDSS Phase 4 Task 48.2 Development of <br />Calibration Targets and Criteria -Final <br />To: Ray Alvarado, CWCB <br />From: Camp Dresser and McKee h1c. <br />Mike Smith, Mark McCloskey, Bill Fernandez, and Gordon McCurry <br />Subject: SPDSS Groundwater Component Phase 4 Final Task 48.2 Technical <br />Memorandum, Development of Model Calibration Targets and Criteria, <br />South Platte Alluvial Groundwater Model <br />Date: October 8, 2008 <br />Introduction <br />Phase 4 Task 48 of the South Platte Decision Support System (SPDSS) includes calibrating a <br />groundwater flow model of the alluvial aquifer system within the South Platte Alluvium <br />Region within Water Division 1. T11e model includes wlconsolidated alluvial deposits of t11e <br />South Platte River ma>1lstem, extending downstream from C1atfield Reservoir to t11e Nebraska <br />state line at Julesburg. In addition, the model includes unconsolidated alluvial deposits of the <br />major tributaries to the South Platte River downstream of Chatfield Reservoir. <br />This Technical Memorandum (TM) was undertaken under Task 48.2 of Phase 4 of the SPDSS, to <br />develop calibration criteria, including selection of field data (targets) to be used daring the <br />model calibration. This TM summarizes the methodology and data that are anticipated to be <br />used in the model calibration process. <br />Approach <br />Calibration targets and calibration criteria Have been developed for bofll the steady-state and <br />transient model simulations for the SPDSS alluvial groundwater model. A general description <br />of model calibration and the process that will be used to calibrate the SPDSS model are <br />described in Sections 1 and 2, respectively, of this TM. Several types of data are used as targets <br />in the model calibration; using multiple targets increases the confidence fllat the model <br />accurately represents the stresses imposed on it. The calibration targets and the periods used to <br />represent the steady-state and transient calibration periods are discussed in Section 3. The <br />numeric values (criteria) that will be used to evaluate how well the model is calibrated are <br />described in Section 4. Sections 5 and 6 provide a summary and recommendations, <br />respectively. The following table sununarizes t11e sections contained in this TM. <br />P~ SPDSS T~8 2 Final TM 10-08-0t~.doc <br />
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