CRDSS_Task1_14-5_CUModelsInShortList

• Title: CRDSS Task 1.14-5 Consumptive Use Models - Consumptive Use Models Included in the Short List
• Description: The purpose of this task memorandum is to describe the reasons for including consumptive use models in the “short list.” The short list was composed of five models that went through a more rigorous evaluation phase.
• Decision Support - Doc Type: Task Memorandum
• Date: 1/9/1995
• DSS Category: Consumptive Use
• DSS: Colorado River
• Basin: Colorado Mainstem
• Contract/PO #: C153658, C153727, C153752
• Grant Type: Non-Reimbursable
• Bill Number: SB92-87, HB93-1273, SB94-029, HB95-1155, SB96-153, HB97-008
• Prepared By: Riverside Technology inc.

TABLE 1
EVALUATION OF MODELS INCLUDED IN THE SHORT LIST (Continued)
CROPWAT and
CriteriaXCONS2 BASIN CRPSMSMB
7. Availability of good fair good good
required data
(exclusive of weather
data).
8. Can crop yes yes yes yes
coefficients be added
or changed?
9. Are crop neither SCS -BC SCS -BC and mean or yield related basal and mean
coefficients basal or probably mean
mean coefficients?
10. Can the model no, requires local no, requires local yes yes
accurately estimate calibration calibration
ET of alfalfa and
meadow grass?
11. Are there no no no yes
estimation techniques
for missing data?
12. Can the model fair fair good good
be locally calibrated?
13. Usability in the fair fair good good
entire CRDSS area.
14. Does the model no no yes yes
have a stress
component to reduce
ET when the water
supply is limited?
15. Methods used to Eff Percip is a Uses infiltration with Uses total and not Yes, daily soil
estimate effective function of the total a soil curve instead effective moisture budget with
precipitation. monthly precipitation of effective precipitation. SCS curve number
and irrigation precipitation. methods.
requirements
application.
16. Can effective no yes yes yes
precipitation in
excess of Etp be
carried over to the
next month?
17. In areas of high no no no no
water tables, does the
model reduce the
CIR to account for
the portion of ET met
by ground water?
18. How easy will good good good good
the model integrate
with CRDSS?
19. Is the model in yes yes no, but there is a no, but there is a
the public domain? licensing agreement licensing agreement
20. How well poor, but uses the poor documentation, no documentation fair
documented is the procedures outlined no detail
model? in TR-21
4
A275 01.09.95 1.14-5 CSU IDS