SPDSS_Task59-1_Develop Locally Calibrated Blaney-Criddle Crop Coefficients

• Title: SPDSS Task 59.1 - Develop Locally Calibrated Blaney-Criddle Crop Coefficients
• Description: This memorandum presents the recommended regional Blaney-Criddle crop coefficients for use in the SPDSS CU analysis. Revised January 11, 2008
• Decision Support - Doc Type: Task Memorandum
• Date: 1/11/2008
• DSS Category: Consumptive Use
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153954
• Grant Type: Non-Reimbursable
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: Leonard Rice Engineering

PCU for Grass Pasture at the Fort Collins Climate Station
0.7
~ 0.6
N 0.5
Q o.a
~ 0.3
0
U
m 0.2
a 0.1
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
-ASCE Standardized - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 17 -Avg PCU for Pasture at Fort Collins
PCU for Grass Pasture at the Greeley Climate Station
0.7
0.6
0.5
Q 0.4
E
~ 0.3
0
U
m 0.2
a 0.1
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
-ASCE Standardized - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 19 -Avg PCU for Pasture at Fort Collins
PCU for Small Grains at the Fort Collins Climate Station
o.s
~, 0.7
m 0.6
~ 0.5
Q
E 0.4
0 0.3
U
0.2
a° 0.1
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
-ASCE Standardized - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 21-Avg PCU for Grains at Fort Collins

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PCU for Grass Pasture at the Fort Lupton Climate Station
0.7
~ 0.6
N 0.5
Q o.a
~ 0.3
0
U
m 0.2
a 0.1
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
-ASCE Standardized - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 18 -Avg PCU for Pasture at Fort Lupton
PCU for Grass Pasture at the Sterling Climate Station
0.70
0.60
N 0.50
Q 0.40
E
~ 0.30
0
U
~ 0.20
a° 0.10
0.00
-ASCE Standardized PM - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 20 -Avg PCU for Pasture at Sterling
PCU for Small Grains at the Fort Lupton Climate Station
o.s
~, 0.7
m 0.6
~ 0.5
Q
E 0.4
0 0.3
U
`-0 0.2
a° 0.1
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
-ASCE Standardized - -Modified Blaney-Criddle, TR-21 Coeff.
Figure 22 -Avg PCU for Grains at Fort Lupton

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