CRDSS_Task1_14-16_ComparisonBlaneyCriddle-PenmanMonteith

• Title: CRDSS Task 1.14-16 - Consumptive Use Model - Comparison of Blaney-Criddle and Penman-Monteith Evaportranspration Estimation Methods
• Description: This task memorandum compares the two evapotranspiration estimation methods implemented in the Gunnison River basin.
• 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.

5.0 SUPPORTING MATERIALS
Tables 2a through 2d show tabular summaries of the results of the computation. They are taken from the
gun_crdss_awc_calib.prj output file of the CRDSS-CU model.
TABLE 1
IRRIGATED ACREAGE BY CROP AND BY SUBAREA IN THE
GUNNISON RIVER BASIN

SUBAREA
COUNTY
HU
ALFALFA
PASTUR
E
CORN SMALL
GRAIN
BEANS
ORCHARD TREE-
FARMS
EGETABLE
TOTAL
1 Delta 14020002 1111 6421 0 238 0 9 0 0 7779
2 Delta 14020004 2903 25668 194 728 0 2475 47 3 32018
8 Gunnison 14020004 66 6733 0 0 0 0 0 0 6799
11 Montrose 14020002 1262 10746 0 208 152 0 0 0 12368
Total 5342 49568 194 1174 152 2484 47 3 58964
TABLE 2a
SUMMARY TABLE
By Subarea, 1987, SCS Blaney-Criddle Original
SUBAREA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUA
L
Delta2 0.00 0.00 0.06 1.08 1.62 3.86 3.88 3.15 2.43 0.99 0.12 0.00 17.19
Delta4 0.00 0.00 0.25 4.41 6.68 15.89 16.07 13.14 10.13 4.08 0.48 0.00 71.13
Gunnison4 0.00 0.00 0.07 0.98 1.36 3.23 3.31 2.76 2.15 0.86 0.10 0.00 14.81
Montrose2 0.00 0.00 0.10 1.72 2.52 6.02 6.14 5.04 3.87 1.56 0.18 0.00 27.15
TABLE 2b
SUMMARY TABLE
By Subarea, 1987, SCS Blaney-Criddle Enhanced
SUBAREA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUAL
Delta2 0.00 0.00 0.00 0.00 0.86 3.85 3.88 3.15 2.43 0.99 0.12 0.00 15.27
Delta4 0.00 0.00 0.00 0.00 4.36 15.85 16.07 13.14 10.13 4.08 0.48 0.00 64.11
Gunnison4 0.00 0.00 0.00 0.00 0.85 3.23 3.31 2.76 2.15 0.86 0.10 0.00 13.26
Montrose2 0.00 0.00 0.00 0.00 1.33 5.98 6.14 5.04 3.87 1.56 0.18 0.00 24.10
TABLE 2c
SUMMARY TABLE
By Subarea, 1987, Penman-Monteith
SUBAREA JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANNUA
L
Delta2 0.00 0.00 0.00 1.54 2.07 2.68 3.77 3.98 2.00 1.94 0.00 0.00 17.98
Delta4 0.00 0.00 0.00 5.45 7.57 15.77 15.73 15.21 8.14 7.31 0.00 0.00 75.19
Gunnison4 0.00 0.00 0.00 1.61 1.66 1.77 3.38 3.33 1.70 1.65 0.00 0.00 15.10
Montrose2 0.00 0.00 0.00 0.00 3.19 6.71 6.10 6.00 3.72 2.67 0.00 0.00 28.39
A275 05.01.95 J 1.14-16 Manguerra