USDA, National Agricultural Statistics Service, 2013 California Cropland Data Layer

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
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)
Publication_Date: 20140131
Title:
USDA, National Agricultural Statistics Service, 2013 California Cropland Data Layer
Edition: 2013 Edition
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place:
USDA, NASS Marketing and Information Services Office, Washington, D.C.
Publisher: USDA, NASS
Other_Citation_Details:
NASS maintains a Frequently Asked Questions (FAQ's) section on the CDL website at <http://www.nass.usda.gov/research/Cropland/SARS1a.htm>. The data is available free for download through CropScape at <http://nassgeodata.gmu.edu/CropScape/>. 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 Geospatial Data Gateway download instructions.
Online_Linkage: <http://nassgeodata.gmu.edu/CropScape/CA>
Description:
Abstract:
The USDA, NASS Cropland Data Layer (CDL) is a raster, geo-referenced, crop-specific land cover data layer. The 2013 CDL has a ground resolution of 30 meters. The CDL is produced using satellite imagery from the Landsat 8 OLI/TIRS sensor, Landsat 7 ETM+ sensor, and the Disaster Monitoring Constellation (DMC) DEIMOS-1 and UK2 sensors collected during the current growing season.
Some CDL states used additional satellite imagery and ancillary inputs to supplement and improve the classification. These additional sources can include the United States Geological Survey (USGS) National Elevation Dataset (NED), the imperviousness and canopy data layers from the USGS National Land Cover Database 2006 (NLCD 2006), 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 2006 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.
Purpose:
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.
Supplemental_Information:
If the following table does not display properly, then please visit the following website to view the original metadata file <http://www.nass.usda.gov/research/Cropland/metadata/meta.htm>.
USDA, National Agricultural Statistics Service 2013 California Cropland Data Layer

CLASSIFICATION INPUTS:
DEIMOS-1 DATE 20120917 PATH/ROW 598
DEIMOS-1 DATE 20130418 PATH/ROW D5D
DEIMOS-1 DATE 20130501 PATH/ROW DC7
DEIMOS-1 DATE 20130504 PATH/ROW DDD
DEIMOS-1 DATE 20130520 PATH/ROW E55
DEIMOS-1 DATE 20130530 PATH/ROW EB0
DEIMOS-1 DATE 20130602 PATH/ROW EC6
DEIMOS-1 DATE 20130605 PATH/ROW EDB
DEIMOS-1 DATE 20130609 PATH/ROW F03
DEIMOS-1 DATE 20130615 PATH/ROW F3E
DEIMOS-1 DATE 20130618 PATH/ROW F52
DEIMOS-1 DATE 20130704 PATH/ROW FE4
DEIMOS-1 DATE 20130708 PATH/ROW 005
DEIMOS-1 DATE 20130718 PATH/ROW 06A
DEIMOS-1 DATE 20130721 PATH/ROW 089
DEIMOS-1 DATE 20130724 PATH/ROW 0AA
DEIMOS-1 DATE 20130727 PATH/ROW 0CE
DEIMOS-1 DATE 20130803 PATH/ROW 105
DEIMOS-1 DATE 20130806 PATH/ROW 123
DEIMOS-1 DATE 20130812 PATH/ROW 155
DEIMOS-1 DATE 20130822 PATH/ROW 1AC
DEIMOS-1 DATE 20130828 PATH/ROW 1E9
DEIMOS-1 DATE 20130829 PATH/ROW 1F3
DEIMOS-1 DATE 20130904 PATH/ROW 223
DEIMOS-1 DATE 20130907 PATH/ROW 23B
DEIMOS-1 DATE 20130917 PATH/ROW 295

LANDSAT 8 OLI/TIRS DATE 20130416 PATH 044 ROW(S) 26-28 31-35
LANDSAT 8 OLI/TIRS DATE 20130418 PATH 042 ROW(S) 26-27 29 33-36
LANDSAT 8 OLI/TIRS DATE 20130425 PATH 043 ROW(S) 26-28 31-36
LANDSAT 8 OLI/TIRS DATE 20130429 PATH 039 ROW(S) 26-28 37-38
LANDSAT 8 OLI/TIRS DATE 20130511 PATH 043 ROW(S) 26-35
LANDSAT 8 OLI/TIRS DATE 20130520 PATH 042 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130522 PATH 040 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130605 PATH 042 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130607 PATH 040 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130612 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130614 PATH 041 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130621 PATH 042 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130623 PATH 040 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130628 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130630 PATH 041 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130712 PATH 045 ROW(S) 26-34
LANDSAT 8 OLI/TIRS DATE 20130714 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130716 PATH 041 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130728 PATH 045 ROW(S) 26-34
LANDSAT 8 OLI/TIRS DATE 20130730 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130803 PATH 039 ROW(S) 26-38
LANDSAT 8 OLI/TIRS DATE 20130804 PATH 046 ROW(S) 26-33
LANDSAT 8 OLI/TIRS DATE 20130808 PATH 042 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130810 PATH 040 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130813 PATH 045 ROW(S) 26-34
LANDSAT 8 OLI/TIRS DATE 20130815 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130817 PATH 041 ROW(S) 26-37
LANDSAT 8 OLI/TIRS DATE 20130831 PATH 043 ROW(S) 26-36
LANDSAT 8 OLI/TIRS DATE 20130909 PATH 042 ROW(S) 26-37

USGS, NATIONAL ELEVATION DATASET
USGS, NATIONAL LAND COVER DATASET 2006 IMPERVIOUSNESS
USGS, NATIONAL LAND COVER DATASET 2001 TREE CANOPY
USDA, NASS CROP MASK BASED ON 2008-2012 CDLS

UK-DMC-2 DATE 20120918 PATH/ROW 699
UK-DMC-2 DATE 20130518 PATH/ROW 835
UK-DMC-2 DATE 20130616 PATH/ROW B47
UK-DMC-2 DATE 20130617 PATH/ROW B53
UK-DMC-2 DATE 20130620 PATH/ROW BBE
UK-DMC-2 DATE 20130718 PATH/ROW DE7
UK-DMC-2 DATE 20130725 PATH/ROW E93
UK-DMC-2 DATE 20130801 PATH/ROW F73
UK-DMC-2 DATE 20130804 PATH/ROW FC6
UK-DMC-2 DATE 20130827 PATH/ROW 1E3

TRAINING AND VALIDATION:
USDA, FARM SERVICE AGENCY 2013 COMMON LAND UNIT DATA
USGS, NATIONAL LAND COVER DATASET 2006

NOTE: The final extent of the CDL is clipped to the state boundary
even though the raw input data may encompass a larger area.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120925
Ending_Date: 20131230
Currentness_Reference: 2013 growing season
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.5876
East_Bounding_Coordinate: -114.1885
North_Bounding_Coordinate: 41.9743
South_Bounding_Coordinate: 32.5028
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: farming, 001
Theme_Keyword: environment, 007
Theme_Keyword: imageryBaseMapsEarthCover, 010
Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Science Keywords
Theme_Keyword:
Earth Science > Biosphere > Terrestrial Ecosystems > Agricultural Lands
Theme_Keyword: Earth Science > Land Surface > Land Use/Land Cover > Land Cover

Theme:
Theme_Keyword_Thesaurus: Global Change Master Directory (GCMD) Instrument Keywords
Theme_Keyword: MODIS > Moderate-Resolution Imaging Spectroradiometer

Theme:
Theme_Keyword_Thesaurus: None

Theme_Keyword: crop cover
Theme_Keyword: cropland
Theme_Keyword: agriculture
Theme_Keyword: farming
Theme_Keyword: land cover
Theme_Keyword: crop estimates
Theme_Keyword: MODIS
Theme_Keyword: DEIMOS-1
Theme_Keyword: UK-DMC 2
Theme_Keyword: Landsat
Theme_Keyword: CropScape
Place:
Place_Keyword_Thesaurus: Global Change Master Directory (GCMD) Location Keywords
Place_Keyword:
Continent > North America > United States of America > California
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: California
Place_Keyword: CA

Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2013
Access_Constraints: None
Use_Constraints:
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) file formats then we suggest using the Cropscape website <http://nassgeodata.gmu.edu/CropScape/> or the freeware browser ESRI ArcGIS Explorer <http://www.esri.com/>.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA, NASS, Spatial Analysis Research Section
Contact_Person: USDA, NASS, Spatial Analysis Research Section staff
Contact_Address:
Address_Type: mailing and physical address
Address: 3251 Old Lee Highway, Room 305
City: Fairfax
State_or_Province: Virginia
Postal_Code: 22030-1504
Country: USA
Contact_Voice_Telephone: 703-877-8000
Contact_Facsimile_Telephone: 703-877-8044
Contact_Electronic_Mail_Address: HQ_RDD_GIB@nass.usda.gov
Data_Set_Credit: USDA, National Agricultural Statistics Service
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment:
Microsoft Windows XP; ERDAS Imagine Versions 2011 <http://www.erdas.com/>; ESRI ArcGIS Version 10.0 <http://www.esri.com/>; Rulequest See5.0 Release 2.10 <http://www.rulequest.com/>; NLCD Mapping Tool v2.08 <http://www.mrlc.gov/>.
ERDAS Imagine is used in the pre- and post- processing of all raster-based data. ESRI ArcGIS is used to prepare the vector-based Farm Service Agency (FSA) Common Land Unit (CLU) training and validation data. Rulequest See5.0 is used to create a decision-tree based classifier. The NLCD Mapping Tool is used to apply the See5.0 decision-tree via ERDAS Imagine. This is a departure from older versions of the CDL that were created using in-house software (Peditor) based upon a maximum likelihood classifier approach. Check this section and the 'Process Description' section of the specific state and year metadata file to verify what methodology was used.

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
If the following table does not display properly, then please visit the following website to view the original metadata file <http://www.nass.usda.gov/research/Cropland/metadata/meta.htm>.
USDA, National Agricultural Statistics Service, 2013 California Cropland Data Layer
STATEWIDE AGRICULTURAL ACCURACY REPORT

Crop-specific covers only  *Correct  Accuracy   Error   Kappa
-------------------------   -------  --------  ------   -----
OVERALL ACCURACY**        2,803,710     80.4%   19.6%   0.788


Cover                ***Attribute  *Correct  Producer's  Omission            User's  Commission  Cond'l
Type                         Code    Pixels   Accuracy     Error   Kappa   Accuracy      Error    Kappa
----                         ----    ------   --------     -----   -----   --------      -----    -----
Corn                            1    154824     88.32%    11.68%   0.878     88.64%     11.36%    0.882
Cotton                          2    157981     94.63%     5.37%   0.944     93.74%      6.26%    0.935
Rice                            3    472821     99.29%     0.71%   0.992     99.35%      0.65%    0.993
Sorghum                         4      2404     27.72%    72.28%   0.277     68.84%     31.16%    0.688
Sunflower                       6     32615     91.27%     8.73%   0.912     89.55%     10.45%    0.895
Sweet Corn                     12       731     15.10%    84.90%   0.150     27.77%     72.23%    0.277
Pop or Orn Corn                13         0       n/a       n/a     n/a       0.00%    100.00%    0.000
Mint                           14        59     12.58%    87.42%   0.126     16.57%     83.43%    0.166
Barley                         21     32695     59.39%    40.61%   0.590     81.26%     18.74%    0.810
Durum Wheat                    22     22071     48.31%    51.69%   0.479     62.69%     37.31%    0.623
Spring Wheat                   23      8524     77.50%    22.50%   0.774     85.76%     14.24%    0.857
Winter Wheat                   24    218991     76.27%    23.73%   0.747     78.10%     21.90%    0.766
Other Small Grains             25         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Rye                            27      3254     51.37%    48.63%   0.513     77.13%     22.87%    0.771
Oats                           28     26997     43.22%    56.78%   0.426     60.41%     39.59%    0.599
Millet                         29         0       n/a       n/a     n/a       0.00%    100.00%    0.000
Canola                         31        38     29.46%    70.54%   0.295     29.23%     70.77%    0.292
Safflower                      33     10837     65.67%    34.33%   0.656     78.65%     21.35%    0.786
Alfalfa                        36    522910     92.79%     7.21%   0.917     87.58%     12.42%    0.858
Other Hay/Non Alfalfa          37     78349     64.71%    35.29%   0.638     72.41%     27.59%    0.716
Camelina                       38         0       n/a       n/a     n/a       0.00%    100.00%    0.000
Sugarbeets                     41      6087     48.84%    51.16%   0.487     47.24%     52.76%    0.471
Dry Beans                      42     10731     80.35%    19.65%   0.803     82.79%     17.21%    0.827
Potatoes                       43      6547     84.01%    15.99%   0.840     87.56%     12.44%    0.875
Other Crops                    44      4154     73.26%    26.74%   0.732     81.05%     18.95%    0.810
Sugarcane                      45         0      0.00%   100.00%   0.000       n/a        n/a      n/a
Sweet Potatoes                 46       594     72.09%    27.91%   0.721     78.57%     21.43%    0.786
Misc Vegs & Fruits             47      4589     24.37%    75.63%   0.242     46.97%     53.03%    0.467
Watermelons                    48       566     10.85%    89.15%   0.108     25.53%     74.47%    0.254
Onions                         49     13721     69.85%    30.15%   0.697     79.60%     20.40%    0.795
Cucumbers                      50        16      2.61%    97.39%   0.026     29.63%     70.37%    0.296
Peas                           53       888     29.31%    70.69%   0.293     55.09%     44.91%    0.551
Tomatoes                       54    127848     89.18%    10.82%   0.888     88.04%     11.96%    0.876
Caneberries                    55         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Herbs                          57       658     24.15%    75.85%   0.241     40.34%     59.66%    0.403
Clover/Wildflowers             58     16595     87.67%    12.33%   0.876     87.92%     12.08%    0.879
Sod/Grass Seed                 59      1696      2.71%    97.29%   0.027     69.22%     30.78%    0.688
Fallow/Idle Cropland           61    199961     79.45%    20.55%   0.780     69.26%     30.74%    0.674
Cherries                       66      2494     37.81%    62.19%   0.378     63.35%     36.65%    0.633
Peaches                        67      3307     65.89%    34.11%   0.659     81.15%     18.85%    0.811
Apples                         68       714     60.51%    39.49%   0.605     94.20%      5.80%    0.942
Grapes                         69     97634     88.03%    11.97%   0.877     88.15%     11.85%    0.879
Other Tree Crops               71      6968     65.01%    34.99%   0.649     78.75%     21.25%    0.787
Citrus                         72     14766     31.44%    68.56%   0.310     47.22%     52.78%    0.467
Pecans                         74       363     33.89%    66.11%   0.339     53.07%     46.93%    0.531
Almonds                        75    224513     90.04%     9.96%   0.895     90.83%      9.17%    0.903
Walnuts                        76     52770     78.83%    21.17%   0.785     82.32%     17.68%    0.821
Pears                          77      2158     82.46%    17.54%   0.825     86.60%     13.40%    0.866
Pistachios                    204     44243     78.13%    21.87%   0.779     85.31%     14.69%    0.851
Triticale                     205     17123     59.26%    40.74%   0.591     77.95%     22.05%    0.778
Carrots                       206      4888     46.10%    53.90%   0.460     58.60%     41.40%    0.585
Asparagus                     207       762     57.81%    42.19%   0.578     72.30%     27.70%    0.723
Garlic                        208     11613     97.03%     2.97%   0.970     98.12%      1.88%    0.981
Cantaloupes                   209       993     20.48%    79.52%   0.204     52.40%     47.60%    0.523
Olives                        211      7154     62.47%    37.53%   0.624     87.71%     12.29%    0.877
Oranges                       212      8804     82.08%    17.92%   0.820     83.29%     16.71%    0.833
Honeydew Melons               213      2017     50.97%    49.03%   0.509     72.24%     27.76%    0.722
Broccoli                      214       915     28.03%    71.97%   0.280     35.31%     64.69%    0.353
Peppers                       216       364     33.30%    66.70%   0.333     59.48%     40.52%    0.595
Pomegranates                  217      4869     61.28%    38.72%   0.612     84.05%     15.95%    0.840
Nectarines                    218       135     19.34%    80.66%   0.193     68.18%     31.82%    0.682
Greens                        219       998     57.96%    42.04%   0.579     34.11%     65.89%    0.341
Plums                         220      4975     49.02%    50.98%   0.489     81.28%     18.72%    0.812
Strawberries                  221       485     27.22%    72.78%   0.272     74.62%     25.38%    0.746
Squash                        222         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Apricots                      223       169     15.36%    84.64%   0.154     87.56%     12.44%    0.876
Vetch                         224       121     29.23%    70.77%   0.292     43.21%     56.79%    0.432
Dbl Crop WinWht/Corn          225    106833     80.91%    19.09%   0.803     74.93%     25.07%    0.742
Dbl Crop Oats/Corn            226     20463     63.94%    36.06%   0.637     59.54%     40.46%    0.592
Lettuce                       227      2403     34.11%    65.89%   0.340     37.80%     62.20%    0.377
Pumpkins                      229        98     20.59%    79.41%   0.206     22.63%     77.37%    0.226
Dbl Crop Lettuce/Durum Wht    230       341     17.14%    82.86%   0.171     20.67%     79.33%    0.206
Dbl Crop Lettuce/Cantaloupe   231         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Dbl Crop Durum Wht/Sorghum    234        38     10.11%    89.89%   0.101     97.44%      2.56%    0.974
Dbl Crop Barley/Sorghum       235      1010     75.43%    24.57%   0.754     90.99%      9.01%    0.910
Dbl Crop WinWht/Sorghum       236     14526     66.68%    33.32%   0.665     77.16%     22.84%    0.770
Dbl Crop Barley/Corn          237       751     33.44%    66.56%   0.334     47.53%     52.47%    0.475
Dbl Crop WinWht/Cotton        238         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Blueberries                   242        12      6.56%    93.44%   0.066     28.57%     71.43%    0.286
Cabbage                       243       168     23.01%    76.99%   0.230     21.03%     78.97%    0.210
Cauliflower                   244         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000
Eggplants                     248         0      0.00%   100.00%   0.000      0.00%    100.00%    0.000

*Correct Pixels represents the total number of independent validation pixels correctly identified in the error matrix.
**The Overall Accuracy represents only the FSA row crops and annual fruit and vegetables (codes 1-61,66-80 and 200-255).
FSA-sampled grass and pasture, aquaculture, and all NLCD-sampled categories (codes 62-65 and 81-199) 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 Database (NLCD 2006). 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/>. ***NOTE: The attribute codes above may not necessarily match the most current coding scheme. Please check the Entity_and_Attribute_Detail_Citation Section of this metadata file to verify the current attibute codes and category names.
Quantitative_Attribute_Accuracy_Assessment:
Attribute_Accuracy_Value:
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.
Attribute_Accuracy_Explanation:
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 Database (NLCD 2006). Thus, the USDA, NASS recommends that users consider the NLCD for studies involving non-agricultural land cover.

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.
Logical_Consistency_Report:
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 Database 2006 (NLCD 2006). More information about the FSA CLU Program can be found at <http://www.fsa.usda.gov/>. More information about the NLCD 2006 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.
Completeness_Report: The entire state is covered by the Cropland Data Layer.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The Cropland Data Layer retains the spatial attributes of the input imagery. The Landsat 8 OLI/TIRS and Landsat 7 ETM imagery was obtained via download from the USGS Global Visualization Viewer (Glovis) website <http://glovis.usgs.gov/>. Please reference the metadata on the Glovis website for each Landsat scene for positional accuracy. The majority of the Landsat data is available at Level 1T (precision and terrain corrected). The DEIMOS-1 and DMC-UK 2 imagery used in the production of the Cropland Data Layer is orthorectified to a radial root mean square error (RMSE) of approximately 10 meters.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Elecnor Deimos Imaging
Title: DEIMOS-1
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publisher: Astrium GEO Information Services
Publication_Place: Elecnor Deimos Imaging, Valladolid, Spain
Publication_Date: 2013 growing season
Other_Citation_Details:
The DEIMOS-1 satellite sensor operates in three spectral bands at a spatial resolution of 22 meters. Additional information about DEIMOS-1 data can be obtained at <http://www.deimos-imaging.com/>. Refer to the 'Supplemental Information' Section of this metadata file for specific scene date, path, row and quadrants used as classification inputs.
For the 2013 CDL Program, the DEIMOS-1 imagery was resampled to 30 meters to match the Landsat spatial resolution. The resample used cubic convolution, rigorous transformation.
Source_Scale_Denominator: 22 meter
Type_of_Source_Media: online download
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20121001
Ending_Date: 20131231
Source_Currentness_Reference: ground condition
Source_Contribution: Raw data used in land cover spectral signature analysis
Source_Information:
Source_Citation:
Citation_Information:
Originator: DMC International Imaging
Title: UK-DMC 2
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publisher: Astrium GEO Information Services
Publication_Place: DMC International Imaging, Guildford, Surrey UK
Publication_Date: 2013 growing season
Other_Citation_Details:
The UK-DMC 2 satellite sensor operates in three spectral bands at a spatial resolution of 22 meters. Additional information about UK-DMC 2 data can be obtained at <http://www.dmcii.com/>. Refer to the 'Supplemental Information' Section of this metadata file for specific scene date, path, row and quadrants used as classification inputs.
For the 2013 CDL Program, the UK-DMC 2 imagery was resampled to 30 meters to match the Landsat spatial resolution. The resample used cubic convolution, rigorous transformation.
Source_Scale_Denominator: 22 meter
Type_of_Source_Media: online download
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20121001
Ending_Date: 20131231
Source_Currentness_Reference: ground condition
Source_Contribution: Raw data used in land cover spectral signature analysis
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Geological Survey (USGS), Earth Resources Observation and Science (EROS)
Title:
Landsat 8 Operational Land Imager and Thermal Infrared Sensor (OLI/TIRS) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+)
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publisher: USGS, EROS
Publication_Place: Sioux Falls, South Dakota 57198-001
Publication_Date: 2013 growing season
Other_Citation_Details:
The Landsat 8 OLI/TIRS and Landsat 7 ETM+ data is free for download through the following website <http://glovis.usgs.gov/>. Additional information about Landsat data can be obtained at <http://eros.usgs.gov/>. Refer to the 'Supplemental Information' Section of this metadata file for specific scene date, path and rows used as classification inputs.
Source_Scale_Denominator: 30 meter
Type_of_Source_Media: online download
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20121001
Ending_Date: 20131230
Source_Currentness_Reference: ground condition
Source_Contribution: Raw data used in land cover spectral signature analysis
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Geological Survey (USGS) and National Aeronautics and Space Administration (NASA) Land Processes Distributed Active Archive Center (LP DAAC)
Title:
Moderate Resolution Imaging Spectroradiometer (MODIS), 250 meter resolution 16-day composite Normalized Difference Vegetation Index (NDVI) from the Terra satellite (MOD13Q1v4)
Geospatial_Data_Presentation_Form: vegetation indices based on remote-sensing imagery
Publication_Information:
Publisher: USGS Center for Earth Resources Observation and Sciences (EROS)
Publication_Place: Sioux Falls, South Dakota 57198 USA
Publication_Date: late 2012 growing season and the entire 2013 growing season
Other_Citation_Details:
The Moderate Resolution Imaging Spectroradiometer (MODIS), 250 meter resolution 16-day composite Normalized Difference Vegetation Index (NDVI) data products from the Terra satellite (MOD13Q1v4) are downloaded from <https://lpdaac.usgs.gov/>. Often late-season MODIS NDVI data are used from the previous growing season in an effort to improve winter wheat detection. Refer to the 'Supplemental Information' Section of this metadata file for specific dates used as classification inputs.
Source_Scale_Denominator: 250 meter
Type_of_Source_Media: online download
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20121001
Ending_Date: 20130930
Source_Currentness_Reference: ground condition
Source_Contribution: NDVI data used in land cover spectral signature analysis
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Data Center
Title: The National Elevation Dataset (NED)
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publisher: USGS, EROS Data Center
Publication_Place: Sioux Falls, South Dakota 57198 USA
Publication_Date: Continuously updated
Other_Citation_Details:
The USGS NED Digital Elevation Model (DEM) is used as an ancillary data source in the production of the Cropland Data Layer. Slope and Aspect derived from the DEM are also used as additional classification inputs. More information on the USGS NED can be found at <http://ned.usgs.gov/>. Refer to the 'Supplemental Information' Section of this metadata file for the complete list of ancillary data sources used as classification inputs.
Source_Scale_Denominator: 30 meter
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: ground condition
Source_Contribution:
spatial and attribute information used in land cover spectral signature analysis
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Data Center
Title: National Land Cover Database 2006 (NLCD 2006)
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:
Publisher: USGS, EROS Data Center
Publication_Place: Sioux Falls, South Dakota 57198 USA
Publication_Date: 2006
Other_Citation_Details:
The NLCD 2006 was used as ground training and validation for non-agricultural categories. Additionally, the USGS NLCD 2006 Imperviousness and NLCD 2001 Tree Canopy layers were used as ancillary data sources in the Cropland Data Layer classification process. More information on the NLCD 2006 can be found at <http://www.mrlc.gov/>. Refer to the 'Supplemental Information' Section of this metadata file for the complete list of ancillary data sources used as classification inputs. Preferred NLCD2006 citation: "Fry, J., Xian, G., Jin, S., Dewitz, J., Homer, C., Yang, L., Barnes, C., Herold, N., and Wickham, J., 2012. Completion of the 2006 National Land Cover Database for the Conterminous United States, PE&RS, Vol. 77(9):858-864."
Source_Scale_Denominator: 30 meter
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: ground condition
Source_Contribution:
spatial and attribute information used in the spectral signature training and validation of non-agricultural land cover
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Department of Agriculture (USDA), Farm Service Agency (FSA)
Title: USDA, FSA Common Land Unit (CLU)
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher: USDA, FSA Aerial Photography Field Office

Publication_Place: Salt Lake City, Utah 84119-2020 USA
Publication_Date: 2013
Other_Citation_Details:
Access to the USDA, Farm Service Agency (FSA) Common Land Unit (CLU) digital data set is currently limited to FSA and Agency partnerships. During the current growing season, producers enrolled in FSA programs report their growing intentions, crops and acreage to USDA Field Service Centers. Their field boundaries are digitized in a standardized GIS data layer and the associated attribute information is maintained in a database known as 578 Administrative Data. This CLU/578 dataset provides a comprehensive and robust agricultural training and validation data set for the Cropland Data Layer. Additional information about the CLU Program can be found at <http://www.fsa.usda.gov/>.
Source_Scale_Denominator: 1:4800
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: ground condition, updated annually
Source_Contribution:
spatial and attribute information used in the spectral signature training and validation of agricultural land cover
Source_Information:
Source_Citation:
Citation_Information:
Originator: E.&J. Gallo Winery

Title: Vineyard Data

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher: E.&J. Gallo Winery

Publication_Place: Modesto, CA 95354 USA

Publication_Date: 2013
Other_Citation_Details:
The E.&J. Gallo Winery company collects vineyard locations by driving and noting field locations on GPS. More information about E.&J. Gallo Winery can be found online at <http://gallo.com/>.
Source_Scale_Denominator: variable
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2013
Source_Currentness_Reference: ground condition, updated annually
Source_Contribution:
spatial and attribute information used in the spectral signature training and validation of agricultural land cover
Source_Information:
Source_Citation:
Citation_Information:
Originator:
United States Department of Interior, Bureau of Reclamation, Lower Colorado Region
Title:
Lower Colorado River Water Accounting System (LCRAS) GIS data layer

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher:
United States Department of Interior, Bureau of Reclamation, Lower Colorado Region

Publication_Place: Boulder City, NV 89006-1470, USA
Publication_Date: 2013
Other_Citation_Details:
The Lower Colorado River Water Accounting System (LCRAS) GIS data layer contains an annually updated record of crop types that was used to supplement the training and validation of the Cropland Data Layer. The area covered is Southern California and Southwest Arizona. For more details please reference the Bureau of Reclamation website <http://www.usbr.gov/lc/>.
Source_Scale_Denominator: 1:4800
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: ground condition, updated annually
Source_Contribution:
spatial and attribute information used in the spectral signature training and validation of agricultural land cover
Process_Step:
Process_Description:
OVERVIEW: The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) Cropland Data Layer (CDL) Program is a unique agricultural-specific land cover geospatial product that is reproduced annually in participating states. The CDL Program builds upon NASS' traditional crop acreage estimation program and integrates Farm Service Agency (FSA) grower-reported field data with satellite imagery to create an unbiased statistical estimator of crop area at the state and county level for internal use. It is important to note that the internal acreage estimates produced using the CDL are not simple pixel counting. It is more of an 'Adjusted Census by Satellite.'

SOFTWARE: ERDAS Imagine is used in the pre- and post- processing of all raster-based data. ESRI ArcGIS is used to prepare the vector-based training and validation data. Rulequest See5.0 is used to create a decision tree based classifier. The NLCD Mapping Tool is used to apply the See5.0 decision-tree via ERDAS Imagine.

DECISION TREE CLASSIFIER: This Cropland Data Layer used the decision tree classifier approach. Using a decision tree classifier is a departure from older versions of the CDL which were created using in-house software (Peditor) based upon a maximum likelihood classifier approach. Check the 'Process Description' section of the specific state and year metadata file to verify the methodology used. Decision trees offer several advantages over the more traditional maximum likelihood classification method. The advantages include being: 1) non-parametric by nature and thus not reliant on the assumption of the input data being normally distributed, 2) efficient to construct and thus capable of handling large and complex data sets, 3) able to incorporate missing and non-continuous data, and 4) able to sort out non-linear relationships.

GROUND TRUTH: As with the maximum likelihood method, decision tree analysis is a supervised classification technique. Thus, it relies on having a sample of known ground truth areas in which to train the classifier. Older versions of the CDL (prior to 2006) utilized ground truth data from the annual June Agricultural Survey (JAS). Beginning in 2006, the CDL utilizes the very comprehensive ground truth data provided from the FSA Common Land Unit (CLU) Program as a replacement for the JAS data. The FSA CLU data have the advantage of natively being in a GIS and containing magnitudes more of field level information. Disadvantages include that it is not truly a probability sample of land cover and has bias toward subsidized program crops. Additional information about the FSA data can be found at <http://www.fsa.usda.gov/>. The NLCD 2006 is used as non-agricultural training and validation data.

INPUTS: The CDL is produced using satellite imagery from the Landsat 8 OLI/TIRS sensor, Landsat 7 ETM+ sensor, and the Disaster Monitoring Constellation (DMC) DEIMOS-1 and UK2 sensors collected during the current growing season. The DEIMOS-1 and UK-DMC 2 imagery was resampled to 30 meters using cubic convolution, rigorous transformation to match the traditional Landsat spatial resolution. Some CDL states used additional satellite imagery and ancillary inputs to supplement and improve the classification. These additional sources can include the United States Geological Survey (USGS) National Elevation Dataset (NED), the imperviousness and canopy data layers from the USGS National Land Cover Database 2006 (NLCD 2006), and the National Aeronautics and Space Administration (NASA) Moderate Resolution Imaging Spectroradiometer (MODIS) 250 meter 16 day Normalized Difference Vegetation Index (NDVI) composites. Please refer to the 'Supplemental_Information' Section of this metadata file for a complete list of all imagery and ancillary data used to generate this state's CDL.

ACCURACY: The accuracy of the land cover classifications are evaluated using independent validations data sets generated from the FSA CLU data (agricultural categories) and the NLCD 2006 (non-agricultural categories). The Producer's 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 full accuracy report.

PUBLIC RELEASE: The USDA, NASS Cropland Data Layer is considered public domain and free to redistribute. The official website is <http://www.nass.usda.gov/research/Cropland/SARS1a.htm>. The data is available free for download through CropScape <http://nassgeodata.gmu.edu/CropScape/> and the Geospatial Data Gateway <http://datagateway.nrcs.usda.gov/>. See the 'Ordering Instructions' section of this metadata file for detailed download instructions. Please note that in no case are farmer reported data revealed or derivable from the public use Cropland Data Layer.
Process_Date: 2013
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA, NASS, Spatial Analysis Research Section
Contact_Person: USDA, NASS, Spatial Analysis Research Section staff
Contact_Address:
Address_Type: mailing and physical address
Address: 3251 Old Lee Highway, Room 305
City: Fairfax
State_or_Province: Virginia
Postal_Code: 22030-1504
Country: USA
Contact_Voice_Telephone: 703-877-8000
Contact_Facsimile_Telephone: 703-877-8044
Contact_Electronic_Mail_Address: HQ_RDD_GIB@nass.usda.gov
Cloud_Cover:
Generally, there is enough cloud-free satellite imagery available during the growing season that there will be no cloud cover in the published CDL. Older versions of the CDL (prior to 2006) may contain significant cloud cover due to available imagery and processing limitations, which have since been overcome. Reference the attribute information within the specific CDL state and year image file to verify the extent of cloud cover.

Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: California
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 35841

Column_Count: 29767


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name:
FOR GEOSPATIAL DATA GATEWAY USERS: Universal Transverse Mercator (UTM) Due to technical restrictions, the online data available free for download through the Geospatial Data Gateway <http://datagateway.nrcs.usda.gov/> can only be offered in UTM. However, the official Cropland Data Layer available at <http://nassgeodata.gmu.edu/CropScape/> includes the data in its native Albers Conical Equal Area coordinate system.

FOR CROPSCAPE USERS: Albers Conical Equal Area is the native projection used in the production of the Cropland Data Layer. The projection parameters for the Albers projection are as follows:
Map_Projection_Name: Albers Conical Equal Area
Albers_Conical_Equal_Area:
Standard_Parallel: 29.500000
Standard_Parallel: 45.500000
Longitude_of_Central_Meridian: -96.000000
Latitude_of_Projection_Origin: 23.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 56
Ordinate_Resolution: 56
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257223563
Universal_Transverse_Mercator:
UTM_Zone_Number: 11 North
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -117
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 30
Ordinate_Resolution: 30
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: WGS84
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.00

Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
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 Database 2006 (NLCD 2006). 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.
Entity_and_Attribute_Detail_Citation:
If the following table does not display properly, then please visit the following website to view the original metadata file <http://www.nass.usda.gov/research/Cropland/metadata/meta.htm>.
 ***NOTE: The 1997-2013 CDLs were recoded and re-released in January 2014 to better represent pasture and grass-related categories. A new
 category named Grass/Pasture (code 176) collapses the following historical CDL categories: Pasture/Grass (code 62), Grassland Herbaceous
 (code 171), and Pasture/Hay (code 181). This was done to eliminate confusion among these similar land cover types which were not always
 classified definitionally consistent from state to state or year to year and frequently had poor classification accuracies. This follows
 the recoding of the entire CDL archive in January 2012 to better align the historical CDLs with the current product. For a detailed list
 of the category name and code changes, please visit the Frequently Asked Questions (FAQ's) section at <http://www.nass.usda.gov/research/Cropland/sarsfaqs2>.


 Data Dictionary: USDA, National Agricultural Statistics Service, 2013 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: NO DATA, BACKGROUND 0

 Categorization Code   Land Cover
         "0"       Background

 Raster
 Attribute Domain Values and Definitions: CROPS 1-20

 Categorization Code   Land Cover
           "1"       Corn
           "2"       Cotton
           "3"       Rice
           "4"       Sorghum
           "5"       Soybeans
           "6"       Sunflower
          "10"       Peanuts
          "11"       Tobacco
          "12"       Sweet Corn
          "13"       Pop or Orn 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"       Dbl Crop WinWht/Soybeans
          "27"       Rye
          "28"       Oats
          "29"       Millet
          "30"       Speltz
          "31"       Canola
          "32"       Flaxseed
          "33"       Safflower
          "34"       Rape Seed
          "35"       Mustard
          "36"       Alfalfa
          "37"       Other Hay/Non Alfalfa
          "38"       Camelina
          "39"       Buckwheat

 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"       Misc Vegs & Fruits
          "48"       Watermelons
          "49"       Onions
          "50"       Cucumbers
          "51"       Chick Peas
          "52"       Lentils
          "53"       Peas
          "54"       Tomatoes
          "55"       Caneberries
          "56"       Hops
          "57"       Herbs
          "58"       Clover/Wildflowers
          "59"       Sod/Grass Seed
          "60"       Switchgrass

 Raster
 Attribute Domain Values and Definitions: NON-CROP 61-65

 Categorization Code   Land Cover
          "61"       Fallow/Idle Cropland
          "63"       Forest
          "64"       Shrubland
          "65"       Barren

 Raster
 Attribute Domain Values and Definitions: CROPS 66-80

 Categorization Code   Land Cover
          "66"       Cherries
          "67"       Peaches
          "68"       Apples
          "69"       Grapes
          "70"       Christmas Trees
          "71"       Other Tree Crops
          "72"       Citrus
          "74"       Pecans
          "75"       Almonds
          "76"       Walnuts
          "77"       Pears

 Raster
 Attribute Domain Values and Definitions: OTHER 81-109

 Categorization Code   Land Cover
          "81"       Clouds/No Data
          "82"       Developed
          "83"       Water
          "87"       Wetlands
          "88"       Nonag/Undefined
          "92"       Aquaculture

 Raster
 Attribute Domain Values and Definitions: NLCD-DERIVED CLASSES 110-195

 Categorization Code   Land Cover
         "111"       Open Water
         "112"       Perennial Ice/Snow
         "121"       Developed/Open Space
         "122"       Developed/Low Intensity
         "123"       Developed/Med Intensity
         "124"       Developed/High Intensity
         "131"       Barren
         "141"       Deciduous Forest
         "142"       Evergreen Forest
         "143"       Mixed Forest
         "152"       Shrubland
         "176"       Grassland/Pasture
         "190"       Woody Wetlands
         "195"       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"       Cantaloupes
         "210"       Prunes
         "211"       Olives
         "212"       Oranges
         "213"       Honeydew Melons
         "214"       Broccoli
         "216"       Peppers
         "217"       Pomegranates
         "218"       Nectarines
         "219"       Greens
         "220"       Plums
         "221"       Strawberries
         "222"       Squash
         "223"       Apricots
         "224"       Vetch
         "225"       Dbl Crop WinWht/Corn
         "226"       Dbl Crop Oats/Corn
         "227"       Lettuce
         "229"       Pumpkins
         "230"       Dbl Crop Lettuce/Durum Wht
         "231"       Dbl Crop Lettuce/Cantaloupe
         "232"       Dbl Crop Lettuce/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"       Blueberries
         "243"       Cabbage
         "244"       Cauliflower
         "245"       Celery
         "246"       Radishes
         "247"       Turnips
         "248"       Eggplants
         "249"       Gourds
         "250"       Cranberries
         "254"       Dbl Crop Barley/Soybeans

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA, NASS Customer Service
Contact_Person: USDA, NASS Customer Service Staff
Contact_Address:
Address_Type: mailing and physical address
Address: 1400 Independence Avenue, SW, Room 5038-S
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20250-9410
Country: USA
Contact_Voice_Telephone: 800-727-9540
Contact_Facsimile_Telephone: 703-877-8044
Contact_Electronic_Mail_Address: HQ_RDD_GIB@nass.usda.gov
Contact_Instructions:
Please visit the official website <http://www.nass.usda.gov/research/Cropland/SARS1a.htm> for distribution details. The Cropland Data Layer is available free for download at <http://nassgeodata.gmu.edu/CropScape/> and <http://datagateway.nrcs.usda.gov/>. Distribution issues can also be directed to the NASS Customer Service Hotline at 1-800-727-9540.
Resource_Description: Cropland Data Layer - California 2013
Distribution_Liability:
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_GIB@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>.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GEOTIFF
Format_Version_Date: California 2013
Format_Information_Content: GEOTIFF
Transfer_Size:
The image file size will vary depending on the state and completeness of coverage. The user can specify the state, or a user-defined area of interest, and year(s) of CDL data to download at the Cropscape website <http://nassgeodata.gmu.edu/CropScape/>.
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. See the 'Ordering Instructions' section of this metadata file for additional information.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://nassgeodata.gmu.edu/CropScape/>
Access_Instructions:
The CDL is available online and free for download from the Cropscape website <http://nassgeodata.gmu.edu/CropScape/>. It is also available free for download from the Geospatial Data Gateway website <http://datagateway.nrcs.usda.gov/>. See the 'Ordering Instructions' section of this metadata file for detailed Geospatial Data Gateway download instructions.
Fees:
Please visit the official website <http://www.nass.usda.gov/research/Cropland/SARS1a.htm> for distribution details. The Cropland Data Layer is available free for download at <http://nassgeodata.gmu.edu/CropScape/> and <http://datagateway.nrcs.usda.gov/>. Distribution issues can also be directed to the NASS Customer Service Hotline at 1-800-727-9540.
Ordering_Instructions:
The CDL is available online and free for download from the Cropscape website <http://nassgeodata.gmu.edu/CropScape/>. 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.
Instructions for downloading from the NRCS Geospatial Data Gateway:

Start by clicking on 'Get Data'

Select a state from the dropdown menu

Select any county and then click 'Submit Selected Counties'

Choose 'Land Use Land Cover' and select 'Cropland Data Layer by State' and 'Continue'

Choose 'FTP' and then 'Continue'

Fill out the required user information and then you are given the option to download the data for free.
Custom_Order_Process:
For a list of other states and years of available data please visit: <http://www.nass.usda.gov/research/Cropland/SARS1a.htm>. The Cropland Data Layer is available free for download at <http://nassgeodata.gmu.edu/CropScape/> and <http://datagateway.nrcs.usda.gov/>. Distribution issues can also be directed to the NASS Customer Service Hotline at 1-800-727-9540.
Technical_Prerequisites:
If the user does not have software capable of viewing a GEOTIF (.tif) file format then we suggest using the Cropscape website <http://nassgeodata.gmu.edu/CropScape/> or using the freeware browser ESRI ArcGIS Explorer <http://www.esri.com/>.

Metadata_Reference_Information:
Metadata_Date: 20140131
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA, NASS, Spatial Analysis Research Section
Contact_Person: USDA, NASS, Spatial Analysis Research Section Staff
Contact_Address:
Address_Type: mailing and physical address
Address: 3251 Old Lee Highway, Room 305
City: Fairfax
State_or_Province: Virginia
Postal_Code: 22030-1504
Country: USA
Contact_Voice_Telephone: 703-877-8000
Contact_Facsimile_Telephone: 703-877-8044
Contact_Electronic_Mail_Address: HQ_RDD_GIB@nass.usda.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: No restrictions on the distribution or use of the metadata file
Metadata_Use_Constraints: No restrictions on the distribution or use of the metadata file

Generated by mp version 2.9.22 on Mon Jan 27 01:01:01 2014