SPDSS_Task89-2_CropLandUseClassificationProcedures_20060929

• Title: SPDSS Task 89.2 - Crop and Land Use Classification Procedures for Year 2001
• Description: This memorandum describes the activities conducted under Task 89: ‘Mapping of Irrigated Land Use and Irrigated Parcel Boundaries’ for year 2001 and complements the SPDSS Memoranda for Task 89.1 and Task 90.2. This memorandum also provides details on the methods used to conduct a number of Task 89 activities, including Task 89.3: Determine Irrigated Vs. Non-irrigated Lands, Task 89.4: Identify Crop Types In Each Polygon, Task 89.5: Review, Revision and Final Classification, and Task 89.6: Conduct Accuracy Assessment, as well as the results obtained from these activities for year 2001.
• Decision Support - Doc Type: Task Memorandum
• Date: 9/29/2006
• DSS Category: GIS
• DSS: South Platte
• Basin: South Platte
• Contract/PO #: C153960
• Grant Type: Non-Reimbursable
• Bill Number: SB01-157, HB02-1152, SB03-110, HB04-1221, SB05-084, HB06-1313, SB07-122
• Prepared By: Riverside Technology inc.

MEMO 89.2 -APPENDIX C
Crop Type General Description Mean Temporal NDVI Variation

200 -- Onions (18 Fields)
190
180

Includes white, red, and other .
170
160

Onions varieties. Planted during April.
As shown by the low NDVI
values on the graphs soil Z
~ 150
~ 130 ~ _ _ _ `
®
`
background is always a major
influence in onions parcels due 120
110 _
~ ~ _ _
~ ,
to thin stalks. 100
26-Apr 12-May 5-Jun 7-Jul 24-Aug 25-Sep 4-Nov
Onions + STD 120.44 122.63 130.86 148.60 149.47 124.16 119.90
Onions Mean 117.75 118.55 125.70 139.18 137.68 120.55 117.69
Onions-STD 115.06 114.46 120.54 129.76 125.88 116.93 115.47

200
190 Potatoes (4 fields)
180 '
170

p 160
~ 150 ° `
°
~ ~ `

Potatoes Planted in late April to early
May, harvested September/ ,~
~ 140
p
October. 120 ' ~ ~
110 _
100
26-Apr 12-May 5-Jun 7-Jul 24-Aug 25-Sep 4-Nov
_ _ Potatoes + STD
Potatoes Mean
Potatoes -STD 118.91
117.62
116.34 123.28
120.28
117.27 157.13
144.92
132.71 188.65
178.51
168.36 138.63
127.19
115.76 121.14
118.93
116.71 120.63
118.95
117.27

Ir
200
190 rigated Sorghum (4 Fields)
180
Includes sor
hum for
rain and 170 '
g
g
il
ll
il
d ~
0 160 °
as m
an,
s
age as we
o, Su
l
i
f
ll ~ 150
and cane. P
n May,
anted
u 140
Sorghum cover by July and harvested y
~ 130 ' `
September through October. If 120 ~, ~
`
~
harvested once it can have
110 I
similar temporal NDVI trends as 100
Corn. z aAPr zap za~~~ za~~~ zaA~g zasap zaott
26-Apr 12-May 5-Jun 7-Jul 24-Aug 25-Sep 4-Nov
_ _ Sorghum+STD 122.97 122.26 128.77 139.94 186.20 181.52 122.31
Sorghum Mean 119.98 119.02 125.72 128.03 172.81 158.30 119.77
Sorghum -STD 116.99 115.77 122.66 116.12 159.43 135.08 117.24

Page 36 of 45 ~R~versfde FecAnotogy, fnc.
4'JaYer Resources Errgi~ecr:np an~i CansuFlrnp