United States Department of Agriculture (USDA), National
Agricultural Statistics Service (NASS), Research and
Development Division (RDD), Geospatial Information
Branch (GIB), Spatial Analysis Research Section (SARS)
20100104
USDA-NASS 2009 North Dakota Cropland Data Layer
2009 Edition
remote-sensing image
USDA, NASS Marketing and Information Services
Office, Washington, D.C.
USDA, NASS
Available on DVD through the official website
<http: www.nass.usda.gov research Cropland SARS1a.htm>.
The data is also available free for download through the
Geospatial Data Gateway at
<http: datagateway.nrcs.usda.gov >. See the 'Ordering
Instructions' section of this metadata file for detailed
download instructions. The most current year of data is
available free for download for a limited time at the
official website
<http: www.nass.usda.gov research Cropland SARS1a.htm>.
The official DVD contains additional accuracy assessment
information that is not available through the Geospatial
Data Gateway in the form of an associated confidence
layer. The following description of the confidence layer
is taken from the document entitled
'MDA_NLCD_User_Guide.doc' which is available free for
download with the NLCD Mapping Tool at
<http: www.mrlc.gov >. The Confidence Layer "spatially
represents the predicted confidence that is associated
with that output pixel, based upon the rule(s) that were
used to classify it. This is useful in that the user can
see the spatial representation of distribution and
magnitude of error or confidence for a given
classification... This error layer represents a percent
confidence associated with each rule and output
categorical, classified value. It is expressed as a
percentage of confidence. A value of zero would
therefore have a low confidence (always wrong), while a
value of 100 would have a very high confidence (always
right)." For more information on the use of confidence
layers please refer to the following paper: Liu, Weiguo,
Sucharita Gopal and Curtis E. Woodcock, 2004.
Uncertainty and confidence in land cover classification
using a hybrid classifier approach, Photogrammetric
Engineering & Remote Sensing, 70(8):963-971. Ultimately,
however, the confidence value is not a measure of
accuracy for a given pixel but rather a how well it fit
within the decision tree ruleset.
\\ITD13588\C$\Documents and Settings\bnutsch\Desktop\junk\nass\nass2009.tif
nass2009.tif
The USDA, NASS Cropland Data Layer (CDL) is a raster,
geo-referenced, crop-specific land cover data layer with a
ground resolution of 56 meters. The CDL is produced using
satellite imagery from the Indian Remote Sensing
RESOURCESAT-1 (IRS-P6) Advanced Wide Field Sensor (AWiFS)
collected during the current growing season. Some Cropland
Data Layer states used Landsat 5 TM and or Landsat 7 ETM+
satellite imagery to supplement the classification.
Ancillary classification inputs include: the United States
Geological Survey (USGS) National Elevation Dataset (NED),
the USGS National Land Cover Dataset 2001 (NLCD 2001), and
the National Aeronautics and Space Administration (NASA)
Moderate Resolution Imaging Spectroradiometer (MODIS) 250
meter 16 day Normalized Difference Vegetation Index (NDVI)
composites. Agricultural training and validation data are
derived from the Farm Service Agency (FSA) Common Land Unit
(CLU) Program. The NLCD 2001 is used as non-agricultural
training and validation data. Please refer to the
'Supplemental_Information' Section of this metadata file for
a complete list of all imagery, ancillary data, and
training validation data used to generate this state's CDL.
The strength and emphasis of the CDL is agricultural land
cover. Please note that no farmer reported data are
derivable from the Cropland Data Layer.
The purpose of the Cropland Data Layer Program is to use
satellite imagery to (1) provide acreage estimates to the
Agricultural Statistics Board for the state's major
commodities and (2) produce digital, crop-specific,
categorized geo-referenced output products.
If the following table does not display properly, then
please visit this internet site
<http: www.nass.usda.gov research Cropland metadata meta.htm>
to view the original metadata file.
USDA, National Agricultural Statistics Service 2009 North Dakota Cropland Data Layer
CLASSIFICATION INPUTS:
AWIFS DATE 20090506 PATH 260 ROW(S)&QUADRANT(S) 35BD 40BD 45BD
AWIFS DATE 20090516 PATH 262 ROW(S)&QUADRANT(S) 35BD 40B
AWIFS DATE 20090530 PATH 260 ROW(S)&QUADRANT(S) 35BD 40BD 45B
AWIFS DATE 20090603 PATH 256 ROW(S)&QUADRANT(S) 35B 40D
AWIFS DATE 20090613 PATH 258 ROW(S)&QUADRANT(S) 35BD
AWIFS DATE 20090623 PATH 260 ROW(S)&QUADRANT(S) 35BD 40BD
AWIFS DATE 20090628 PATH 261 ROW(S)&QUADRANT(S) 35D 40B
AWIFS DATE 20090811 PATH 265 ROW(S)&QUADRANT(S) 35ACD 40ABCD 45ABD
AWIFS DATE 20090812 PATH 270 ROW(S)&QUADRANT(S) 35ACD 40ABCD 45ABCD 50B
AWIFS DATE 20090825 PATH 263 ROW(S)&QUADRANT(S) 35D
AWIFS DATE 20090830 PATH 264 ROW(S)&QUADRANT(S) 35BD 40B 45D 50B
AWIFS DATE 20090830 PATH 264 ROW(S)&QUADRANT(S) 35BD 45D 50B
AWIFS DATE 20090913 PATH 262 ROW(S)&QUADRANT(S) 35BD
AWIFS DATE 20090917 PATH 258 ROW(S)&QUADRANT(S) 35BD 40BD
LANDSAT 5 TM DATE 20090521 PATH 030 ROW(S) 26 27 28 33 34
LANDSAT 5 TM DATE 20090620 PATH 032 ROW(S) 26 27 28 29 38 39
LANDSAT 5 TM DATE 20090625 PATH 035 ROW(S) 26 27 28
LANDSAT 5 TM DATE 20090629 PATH 031 ROW(S) 28 29 30 31 32 33 34 35 38 40
LANDSAT 5 TM DATE 20090701 PATH 029 ROW(S) 26 27 28 29 30 31 32 33 34 35 36 37
LANDSAT 5 TM DATE 20090708 PATH 030 ROW(S) 26 27 28 30 31 32 33 34 35 36 37 38 39 40
LANDSAT 5 TM DATE 20090711 PATH 035 ROW(S) 26 27 28
LANDSAT 5 TM DATE 20090722 PATH 032 ROW(S) 26 27 28 29 30 31 32 33 34 35 39
LANDSAT 5 TM DATE 20090821 PATH 034 ROW(S) 26 27 28 29 32 33 34
LANDSAT 5 TM DATE 20090825 PATH 030 ROW(S) 26 27 28 29 30 35 36 37 38 39 40
LANDSAT 5 TM DATE 20090901 PATH 031 ROW(S) 26 27 28 32 33 34 35 36 37 38
LANDSAT 5 TM DATE 20090906 PATH 034 ROW(S) 26 27 28
LANDSAT 5 TM DATE 20090910 PATH 030 ROW(S) 26 27 28
MODIS 16 DAY NDVI COMPOSITE DATE 20090509
USGS, NATIONAL ELEVATION DATASET ELEVATION
USGS, NATIONAL LAND COVER DATASET 2001 TREE CANOPY
USGS, NATIONAL LAND COVER DATASET 2001 IMPERVIOUSNESS
TRAINING AND VALIDATION:
USDA, FARM SERVICE AGENCY 2009 COMMON LAND UNIT DATA
USGS, NATIONAL LAND COVER DATASET 2001
NOTE: The final extent of the CDL is clipped to the state boundary
even though the raw input data may encompass a larger area.
en
20090101
20091230
2009 growing season
None planned
-104.346011
-96.410892
49.110449
45.826937
108952.000000689056.0000005087158.0000005439734.000000
ISO 19115 Topic Category
farming, 001
environment, 007
imageryBaseMapsEarthCover, 010
Global Change Master Directory
(GCMD) Science Keywords
Use Land Cover > Land Cover
Global Change Master Directory
(GCMD) Instrument Keywords
Spectroradiometer
Spectroradiometer
None
crop cover
cropland
agriculture
land cover
crop estimates
AWiFS
MODIS
Landsat
Global Change Master Directory
(GCMD) Location Keywords
None
North Dakota
ND
None
2009
None
The USDA, NASS Cropland Data Layer is provided to the public as
is and is considered public domain and free to redistribute. The
USDA, NASS does not warrant any conclusions drawn from these
data. If the user does not have software capable of viewing
GEOTIF (.tif) or ERDAS Imagine (.img) file formats then we
suggest using the freeware browser ESRI ArcGIS Explorer
<http: www.esri.com software arcgis explorer >.
USDA, NASS, Spatial Analysis
Research Section
Section staff
mailing and physical address
3251 Old Lee Highway, Room 305
Fairfax
Virginia
22030-1504
USA
703-877-8000
703-877-8044
HQ_RDD_GIB@nass.usda.gov
USDA, National Agricultural Statistics Service
None
Unclassified
None
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Raster Dataset
If the following table does not display properly, then
please visit this internet site
<http: www.nass.usda.gov research Cropland metadata meta.htm>
to view the original metadata file.
USDA, National Agricultural Statistics Service, 2009 North Dakota Cropland Data Layer
STATEWIDE AGRICULTURAL ACCURACY REPORT
Crop-specific covers only *Correct Accuracy Error Kappa
------------------------- ------- -------- ------ -----
OVERALL ACCURACY** 1723888 82.70% 17.30% 0.7961
Cover Attribute *Correct Producer's Omission User's Commission Cond'l
Type Code Pixels Accuracy Error Kappa Accuracy Error Kappa
---- ---- ------ -------- ----- ----- -------- ----- -----
Corn 1 159624 89.76% 10.24% 0.8920 91.50% 8.50% 0.9102
Sorghum 4 346 24.16% 75.84% 0.2415 60.28% 39.72% 0.6026
Soybeans 5 291548 95.99% 4.01% 0.9558 94.29% 5.71% 0.9373
Sunflowers 6 61822 87.27% 12.73% 0.8701 91.38% 8.62% 0.9119
Barley 21 30628 50.34% 49.66% 0.4977 80.95% 19.05% 0.8060
Durum wheat 22 169103 81.91% 18.09% 0.8078 85.85% 14.15% 0.8493
Spring wheat 23 595584 91.61% 8.39% 0.8948 87.25% 12.75% 0.8420
Winter wheat 24 52183 84.25% 15.75% 0.8398 90.94% 9.06% 0.9077
Other grains 25 54 21.86% 78.14% 0.2186 58.06% 41.94% 0.5806
Rye 27 478 35.20% 64.80% 0.3519 89.85% 10.15% 0.8985
Oats 28 8050 41.90% 58.10% 0.4171 72.98% 27.02% 0.7282
Millet 29 638 29.13% 70.87% 0.2911 53.34% 46.66% 0.5331
Canola 31 61284 92.23% 7.77% 0.9205 82.57% 17.43% 0.8221
Flaxseed 32 13998 65.31% 34.69% 0.6514 85.43% 14.57% 0.8534
Safflower 33 1692 71.51% 28.49% 0.7150 84.14% 15.86% 0.8413
Mustard 35 1086 72.89% 27.11% 0.7288 96.02% 3.98% 0.9602
Alfalfa 36 19963 58.85% 41.15% 0.5851 73.83% 26.17% 0.7356
Other hays 37 134149 54.07% 45.93% 0.5064 57.40% 42.60% 0.5401
Camelina 38 0 0.00% 100.00% 0.0000 0.00% 100.00% 0.0000
Beets 41 6664 92.06% 7.94% 0.9204 96.76% 3.24% 0.9676
Dry beans 42 27603 80.46% 19.54% 0.8027 84.98% 15.02% 0.8482
Potatoes 43 5849 68.12% 31.88% 0.6806 88.65% 11.35% 0.8862
Other crops 44 599 50.72% 49.28% 0.5071 93.16% 6.84% 0.9315
Misc. fruit & vegetables 47 31 54.39% 45.61% 0.5439 100.00% 0.00% 1.0000
Lentils 52 16491 85.26% 14.74% 0.8519 91.98% 8.02% 0.9194
Peas 53 42435 89.95% 10.05% 0.8980 88.60% 11.40% 0.8844
Clover Wildflower 58 90 14.90% 85.10% 0.1490 76.92% 23.08% 0.7692
Seed Sod Grass 59 317 23.41% 76.59% 0.2340 70.76% 29.24% 0.7075
Idle Fallow 61 21577 62.42% 37.58% 0.6211 80.57% 19.43% 0.8037
*Correct Pixels represents the total number of independent validation pixels correctly identifed
in the error matrix.
**The Overall Accuracy represents only the FSA row crops and annual fruit and vegetables. FSA-sampled tree
and shrub crops, aquaculture, and all NLCD-sampled categories are not included in the overall accuracy.
The accuracy of the non-agricultural land cover classes
within the Cropland Data Layer is entirely dependent upon
the USGS, National Land Cover Dataset (NLCD 2001). Thus, the
USDA, NASS recommends that users consider the NLCD for
studies involving non-agricultural land cover. For more
information on the accuracy of the NLCD please reference
<http: www.mrlc.gov >.
Classification accuracy is generally 85% to 95% correct
for the major crop-specific land cover categories. See
the 'Attribute Accuracy Report' section of this metadata
file for the detailed accuracy report.
The strength and emphasis of the CDL is crop-specific
land cover categories. The accuracy of the CDL
non-agricultural land cover classes is entirely
dependent upon the USGS, National Land Cover Dataset
(NLCD 2001). Thus, the USDA, NASS recommends that users
consider the NLCD for studies involving non-agricultural
land cover.
The official DVD contains additional accuracy assessment
information that is not available through the Geospatial
Data Gateway in the form of an associated confidence
layer. The following description of the confidence layer
is taken from the document entitled
'MDA_NLCD_User_Guide.doc' which is available free for
download with the NLCD Mapping Tool at
<http: www.mrlc.gov >. The Confidence Layer "spatially
represents the predicted confidence that is associated
with that output pixel, based upon the rule(s) that were
used to classify it. This is useful in that the user can
see the spatial representation of distribution and
magnitude of error or confidence for a given
classification... This error layer represents a percent
confidence associated with each rule and output
categorical, classified value. It is expressed as a
percentage of confidence. A value of zero would
therefore have a low confidence (always wrong), while a
value of 100 would have a very high confidence (always
right)." For more information on the use of confidence
layers please refer to the following paper: Liu, Weiguo,
Sucharita Gopal and Curtis E. Woodcock, 2004.
Uncertainty and confidence in land cover classification
using a hybrid classifier approach, Photogrammetric
Engineering & Remote Sensing, 70(8):963-971. Ultimately,
however, the confidence value is not a measure of
accuracy for a given pixel but rather a how well it fit
within the decision tree ruleset.
These definitions of accuracy statistics were derived
from the following book: Congalton, Russell G. and Kass
Green. Assessing the Accuracy of Remotely Sensed Data:
Principles and Practices. Boca Raton, Florida: CRC
Press, Inc. 1999. The 'Producer's Accuracy' is
calculated for each cover type in the ground truth and
indicates the probability that a ground truth pixel will
be correctly mapped (across all cover types) and
measures 'errors of omission'. An 'Omission Error'
occurs when a pixel is excluded from the category to
which it belongs in the validation dataset. The 'User's
Accuracy' indicates the probability that a pixel from
the CDL classification actually matches the ground truth
data and measures 'errors of commission'. The
'Commission Error' represent when a pixel is included in
an incorrect category according to the validation data.
It is important to take into consideration errors of
omission and commission. For example, if you classify
every pixel in a scene to 'wheat', then you have 100%
Producer's Accuracy for the wheat category and 0%
Omission Error. However, you would also have a very high
error of commission as all other crop types would be
included in the incorrect category. The 'Kappa' is a
measure of agreement based on the difference between the
actual agreement in the error matrix (i.e., the
agreement between the remotely sensed classification and
the reference data as indicated by the major diagonal)
and the chance agreement which is indicated by the row
and column totals. The 'Conditional Kappa Coefficient'
is the agreement for an individual category within the
entire error matrix.
The Cropland Data Layer (CDL) has been produced using training
and independent validation data from the Farm Service Agency
(FSA) Common Land Unit (CLU) Program (agricultural data) and
United States Geological Survey (USGS) National Land Cover
Dataset 2001 (NLCD 2001). More information about the FSA CLU
Program can be found at <http: www.fsa.usda.gov >. More
information about the NLCD 2001 can be found at
<http: www.mrlc.gov >. The CDL encompasses the entire state
unless noted otherwise in the 'Completeness Report' section of
this metadata file.
The entire state is covered by the Cropland
Data Layer.
Metadata imported.C:\DOCUME~1\bnutsch\LOCALS~1\Temp\xml16B.tmp2010030109031600
North Dakota
Raster
Pixel
6296
10359
56.00000056.00000081Upper LeftTRUENone1pixel codesTIFFTRUE
row and column
56.000000
56.000000
meters
Universal Transverse Mercator140.999600-99.0000000.000000500000.0000000.000000
row and column
56.000000
56.000000
meters
Universal Transverse Mercator140.999600-99.0000000.000000500000.0000000.000000
D_WGS_1984
WGS_1984
6378137.000000
298.257224
D_WGS_1984
WGS_1984
6378137.000000
298.257224
GCS_WGS_1984WGS_1984_UTM_Zone_14N
The Cropland Data Layer (CDL) is produced using agricultural
training data from the Farm Service Agency (FSA) Common Land
Unit (CLU) Program and non-agricultural training data from
the United States Geological Survey (USGS) National Land
Cover Dataset 2001 (NLCD 2001). The strength and emphasis of
the CDL is crop-specific land cover categories. The accuracy
of the CDL non-agricultural land cover classes are entirely
dependent upon the NLCD. Thus, the USDA, NASS recommends
that users consider the NLCD for studies involving
non-agricultural land cover.
If the following table does not display properly, then
please visit this internet site
<http: www.nass.usda.gov research Cropland metadata meta.htm>
to view the original metadata file.
Data Dictionary: USDA, National Agricultural Statistics Service, 2009 North Dakota Cropland Data Layer
Source: USDA, National Agricultural Statistics Service
The following is a cross reference list of the categorization codes and
land covers. Note that not all land cover categories listed below will
appear in an individual state.
Raster
Attribute Domain Values and Definitions: CROPS 1-20
Categorization Code Land Cover
"1" Corn
"2" Cotton
"3" Rice
"4" Sorghum
"5" Soybeans
"6" Sunflowers
"10" Peanuts
"11" Tobacco
"12" Sweet Corn
"13" Popcorn or Ornamental Corn
"14" Mint
Raster
Attribute Domain Values and Definitions: GRAINS,HAY,SEEDS 21-40
Categorization Code Land Cover
"21" Barley
"22" Durum Wheat
"23" Spring Wheat
"24" Winter Wheat
"25" Other Small Grains
"26" Winter Wheat Soybeans Double-Cropped
"27" Rye
"28" Oats
"29" Millet
"30" Speltz
"31" Canola
"32" Flaxseed
"33" Safflower
"34" Rape seed
"35" Mustard
"36" Alfalfa
"37" Other Hays
"38" Camelina
Raster
Attribute Domain Values and Definitions: CROPS 41-60
Categorization Code Land Cover
"41" Sugarbeets
"42" Dry Beans
"43" Potatoes
"44" Other Crops
"45" Sugarcane
"46" Sweet Potatoes
"47" Miscellaneous Vegetables & Fruit
"48" Watermelon
"49" Onions
"50" Pickles
"51" Chick Peas
"52" Lentils
"53" Peas
"54" Tomatoes
"55" Caneberry
"56" Hops
"57" Herbs
"58" Clover Wildflowers
"59" Seed Sod Grass
"60" Switchgrass
Raster
Attribute Domain Values and Definitions: NON-CROP 61-65
Categorization Code Land Cover
"61" Fallow Idle Cropland
"62" Grass Pasture
"63" Woodland
"64" Shrubland
"65" Barren
Raster
Attribute Domain Values and Definitions: CROPS 66-80
Categorization Code Land Cover
"66" Cherry Orchards
"67" Peaches
"68" Apples
"69" Grapes
"70" Christmas Trees
"71" Other Tree Nuts
"72" Citrus
"73" Other Tree Fruit
"74" Pecans
"75" Almonds
"76" Walnuts
"77" Pear
"80" Other Non-Tree Fruit
Raster
Attribute Domain Values and Definitions: OTHER 81-99
Categorization Code Land Cover
"81" Clouds
"82" Urban Developed
"83" Water
"87" Wetlands
"92" Aquaculture
Raster
Attribute Domain Values and Definitions: NLCD-DERIVED NON-CROP 100-195
Categorization Code Land Cover
"111" NLCD - Open Water
"112" NLCD - Perennial Ice, Snow
"121" NLCD - Developed Open Space
"122" NLCD - Developed Low Intensity
"123" NLCD - Developed Medium Intensity
"124" NLCD - Developed High Intensity
"131" NLCD - Barren
"141" NLCD - Deciduous Forest
"142" NLCD - Evergreen Forest
"143" NLCD - Mixed Forest
"152" NLCD - Shrubland
"171" NLCD - Grassland Herbaceous
"181" NLCD - Pasture Hay
"182" NLCD - Cultivated Crop
"190" NLCD - Woody Wetlands
"195" NLCD - Herbaceous Wetlands
Raster
Attribute Domain Values and Definitions: CROPS 195-255
Categorization Code Land Cover
"204" Pistachios
"205" Triticale
"206" Carrots
"207" Asparagus
"208" Garlic
"209" Cantaloupe
"210" Prunes
"211" Olives
"212" Oranges
"213" Honeydew Melon
"214" Broccoli
"216" Peppers
"217" Pomegranates
"218" Nectarine
"219" Greens
"220" Plums
"221" Strawberries
"222" Squash
"223" Apricots
"224" Vetch
"225" Dbl. Crop WinWht Corn
"226" Dbl. Crop Oats Corn
"227" Lettuce
"228" Cucumber
"229" Pumpkin
"230" Dbl. Crop Lettuce Durum Wht
"231" Dbl. Crop Lettuce Cantaloupe
"232" Dbl. Crop Lettuce Upland Cotton
"233" Dbl. Crop Lettuce Barley
"234" Dbl. Crop Durum Wht Sorghum
"235" Dbl. Crop Barley Sorghum
"236" Dbl. Crop WinWht Sorghum
"237" Dbl. Crop Barley Corn
"238" Dbl. Crop WinWht Cotton
"239" Dbl. Crop Soybeans Cotton
"240" Dbl. Crop Soybeans Oats
"241" Dbl. Crop Corn Soybeans
"242" Blueberry
"243" Cabbage
"244" Cauliflower
"245" Celery
"246" Radish
"247" Turnip
"248" Eggplant
"249" Gourds
"250" Cranberry
"254" Dbl. Crop Barley Soybeans
nass2009.tif.vatTable196OIDOIDOID400Internal feature number.ESRISequential unique whole numbers that are automatically generated.VALUEVALUEInteger990REDREDDouble19188GREENGREENDouble19188BLUEBLUEDouble19188COUNTCOUNTDouble19188CLASS_NAMECLASS_NAMEString3200
USDA, NASS Customer Service
USDA, NASS Customer Service Staff
mailing and physical address
1400 Independence Avenue, SW, Room 5038-S
Washington
District of Columbia
20250-9410
USA
800-727-9540
703-877-8044
HQ_RDD_OD@nass.usda.gov
The Cropland Data Layer is available free for download
at <http: datagateway.nrcs.usda.gov >. The most current
year of data is available free for download for a
limited time at the official website
<http: www.nass.usda.gov research Cropland SARS1a.htm>.
To order a CD-ROM or DVD fill out the order form at
<http: www.nass.usda.gov research Cropland SARS1a.htm>
and submit it either electronically (invoice will follow
with the delivery) or mail the completed form with your
check to: USDA NASS Customer Service, 1400 Independence
Avenue, SW, Room 5829-S, Washington DC 20250-9410.
Please note 'Cropland Data Layer - (State and Year)' in
the 'Memo' of your check. Checks should be made out to
'USDA, NASS'. Allow 1 week for delivery.
Cropland Data Layer - North Dakota 2009
Disclaimer: Users of the Cropland Data Layer (CDL) are solely
responsible for interpretations made from these products. The
CDL is provided 'as is' and the USDA, NASS does not warrant
results you may obtain using the Cropland Data Layer. Contact
our staff at (HQ_RDD_OD@nass.usda.gov) if technical questions
arise in the use of the CDL. NASS does maintain a Frequently
Asked Questions (FAQ's) section on the CDL website at
<http: www.nass.usda.gov research Cropland SARS1a.htm>.
GEOTIFF
North Dakota 2009
GEOTIFF
The image file size will vary depending on the state
and completeness of coverage. The CD-ROM and or DVD
obtained through the official website
<http: www.nass.usda.gov research Cropland SARS1a.htm>
contains data for a single year.
When downloading the data through the Geospatial
Data Gateway <http: datagateway.nrcs.usda.gov > all
available years of CDL production for the requested
state are included in one compressed file. Technical
restrictions do not allow us to offer the CDL by
individual state year through the Geospatial Data
Gateway. See the 'Ordering Instructions' section of
this metadata file for additional information.
0.000
<http: datagateway.nrcs.usda.gov >
See the 'Ordering Instructions' section of this
metadata file for detailed download instructions.
CD-ROM or DVD
DOS-COPY
The USDA, NASS charges a nominal fee to cover the cost of
CD-ROM and DVD production and shipping costs. Please visit
the official website
<http: www.nass.usda.gov research Cropland SARS1a.htm> for
prices. Distribution issues can also be directed to the NASS
Customer Service Hotline at 1-800-727-9540. The Cropland
Data Layer is also available free for download at
<http: datagateway.nrcs.usda.gov >.
To order a CD-ROM or DVD fill out the order form at
<http: www.nass.usda.gov research Cropland SARS1a.htm> and
submit it either electronically (invoice will follow with
the delivery) or mail the completed form with your check to:
USDA, NASS Customer Service, 1400 Independence Avenue, SW,
Room 5829-S, Washington DC 20250-9410. Please note 'Cropland
Data Layer - (State and Year)' in the 'Memo' part of your
check. Checks should be made out to 'USDA, NASS'. Allow 1
week for delivery. Distribution issues can also be directed
to the NASS Customer Service Hotline at 1-800-727-9540.
The most current year of data is available free for download
for a limited time at the official website
<http: www.nass.usda.gov research Cropland SARS1a.htm>.
The Cropland Data Layer is also available free for download
from the NRCS Geospatial Data Gateway at
<http: datagateway.nrcs.usda.gov >.
IMPORTANT NOTE: When downloading the CDL using the NRCS
Geospatial Data Gateway all available years of CDL
production for the requested state are included in a single
compressed file. Geospatial Data Gateway technical
restrictions do not allow us to offer the CDL by individual
state year. We are working on offering this option in the
future.
Instructions for downloading from the NRCS Geospatial Data Gateway:
Start by clicking on 'Get Data'
Then click on 'Quick State'
Scroll down to choose your state and click 'Continue'
Choose 'Land_use_land_cover' and select 'Cropland Data Layer by State' and 'Continue to Step3'
Choose 'Continue' to Step4
Lastly, you are given the option to download the data for free or to order the
official DVD CD for the cost of the reproduction.
Allow 1 week for delivery for CD-ROM and or DVD.
For a list of other states and years of available data please
visit: <http: www.nass.usda.gov research Cropland SARS1a.htm>.
Distribution issues can also be directed to the NASS Customer
Service Hotline at 1-800-727-9540. The Cropland Data Layer is
also available free for download at
<http: datagateway.nrcs.usda.gov >.
If the user does not have software capable of viewing GEOTIF
(.tif) or ERDAS Imagine (.img) file formats then we suggest
using the freeware browser ESRI ArcGIS Explorer
<http: www.esri.com software arcgis explorer >.
20100301
USDA, NASS, Spatial Analysis
Research Section
Section Staff
REQUIRED: The person responsible for the metadata information.
mailing and physical address
3251 Old Lee Highway, Room 305
Fairfax
Virginia
22030-1504
USA
703-877-8000
703-877-8044
HQ_RDD_GIB@nass.usda.gov
FGDC Content Standards for Digital Geospatial Metadata
enFGDC-STD-001-1998local timehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile
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