Crop Progress Data Layer

Identification_Information:

Citation:

Citation_Information:

Originator: USDA, National Agricultural Statistics Service
Publication_Date: 20210201
Title: Crop Progress Data Layer
Geospatial_Data_Presentation_Form: digital document
Publication_Information:

Publication_Place: Washington, DC
Publisher: USDA, National Agricultural Statistics Service

Online_Linkage:

<https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php>

Description:

Abstract:

In response to increasing demand for higher resolution crop progress and condition data which reveal spatiotemporal trends within states, NASS has begun the creation of geospatially referenced, gridded datasets which represent the raw county data in a way that protects farmer confidentiality. The Crop Progress and Condition Layers are gridded geospatial datasets which are fully synthetic representations of confidential, NASS county level survey data. These new data are available for U.S. corn, soybeans, cotton, and winter wheat, at a weekly cadence during the growing season. The current archive of these datasets span growing-season weeks for all years from 2015 to present. All gridded datasets are in the widely used geoTIFF format. The resolution is 9km and uses the NAD 1983 Contiguous USA Albers Projected Coordinate System. The data stored in the pixels is 32-bit float format. These Crop Progress and Condition Layers are snapped to the NASA Soil Moisture Active Passive Satellite data, to facilitate ease of coordinated use between datasets. Please reference <https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php> for data downloads and additional technical details.

Purpose:

The purpose of the Crop Progress Data Layer is a response to increasing demand for higher geospatial resolution crop progress and condition data which reveal spatiotemporal trends within states. The Crop Progress and Condition Layers are gridded geospatial datasets which are fully synthetic representations of confidential, NASS county level survey data.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2015
Ending_Date: Present

Currentness_Reference:

weekly updates annually from April through November starting with 2015

Status:

Progress: Complete
Maintenance_and_Update_Frequency: weekly updates annually from April through November

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -127.2847
East_Bounding_Coordinate: -74.0940
North_Bounding_Coordinate: 48.1805
South_Bounding_Coordinate: 23.4495

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: None

Theme_Keyword: cropland
Theme_Keyword: agriculture
Theme_Keyword: farming

Place:

Place_Keyword_Thesaurus: ISO
Place_Keyword: United States
Place_Keyword: Alabama
Place_Keyword: Arkansas
Place_Keyword: Colorado
Place_Keyword: Connecticut
Place_Keyword: Delaware
Place_Keyword: Georgia
Place_Keyword: Idaho
Place_Keyword: Illinois
Place_Keyword: Indiana
Place_Keyword: Iowa
Place_Keyword: Kansas
Place_Keyword: Kentucky
Place_Keyword: Louisiana
Place_Keyword: Maine
Place_Keyword: Maryland
Place_Keyword: Massachusetts
Place_Keyword: Michigan
Place_Keyword: Minnesota
Place_Keyword: Mississippi
Place_Keyword: Missouri
Place_Keyword: Montana
Place_Keyword: Nebraska
Place_Keyword: New Hampshire
Place_Keyword: New Jersey
Place_Keyword: New Mexico
Place_Keyword: New York
Place_Keyword: North Carolina
Place_Keyword: North Dakota
Place_Keyword: Ohio
Place_Keyword: Oklahoma
Place_Keyword: Oregon
Place_Keyword: Pennsylvania
Place_Keyword: Rhode Island
Place_Keyword: South Carolina
Place_Keyword: South Dakota
Place_Keyword: Tennessee
Place_Keyword: Texas
Place_Keyword: Utah
Place_Keyword: Vermont
Place_Keyword: Virginia
Place_Keyword: Washington
Place_Keyword: West Virginia
Place_Keyword: Wisconsin
Place_Keyword: Wyoming

Access_Constraints: none
Use_Constraints:

The USDA, NASS Crop Progress Data Layers are provided to the public as is and are considered public domain and free to redistribute. The USDA, NASS does not warrant any conclusions drawn from these data.

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: 1400 Independence Avenue, SW, Room 5029 South Building
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20250-2001
Country: USA

Contact_Voice_Telephone: 800-727-9540
Contact_Facsimile_Telephone: 855-493-0447
Contact_Electronic_Mail_Address: SM.NASS.RDD.GIB@usda.gov

Data_Quality_Information:

Logical_Consistency_Report:

NASS has begun the creation of geospatially referenced, gridded datasets which represent the raw county data in a way that protects farmer confidentiality. The Crop Progress and Condition Layers are gridded geospatial datasets which are fully synthetic representations of confidential, NASS county level survey data.

Completeness_Report:

Data is for the conterminous United States excluding Arizona, California, Florida and Nevada

Lineage:

Process_Step:

Process_Description:

Additional technical information and downloads are available at <https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php>. BACKGROUND: Crop progress and condition estimates are obtained from data provided by the non-probability crop progress and condition survey. NASS reports typically cover the full U.S. growing season and are based on survey data collected each week from early April through the end of November. The non-probability crop progress and condition surveys include input from approximately 3,600 respondents whose occupations provide them opportunities to make visual observations and frequently bring them in contact with farmers in their counties. Based on standard definitions, these respondents subjectively estimate the progress of crops through various stages of development, as well as the progress of producer activities. They also provide subjective evaluations of crop conditions. Weekly reports are reviewed for reasonableness and consistency. Aggregation of the data to state and national levels relies on weights derived from historical NASS acreage estimates, the original county reports are unweighted. CROP PROGRESS DATA LAYER: The Crop Progress Index is calculated based on the phenological stages as reported by the NASS weekly survey reports. For the purpose of this example, the wheat progress formula will be showcased, but the process is similar for other crops. The NASS recorded phenological stages for wheat are "planted", "emerged", "headed", and "harvested". The formula used to create the wheat Crop Progress Index is as follows: Wheat Progress=(planted+emerged+headed+harvested)/400. This results in an index with values ranging from 0 to 1, where 0 represents 0% planted, and 1 represents 100% harvested. All crops have the same value range. Those who wish to tie this index value to the original phenological categories should be aware that this formula equally spaces the phenological states across the range of the index, even though phenological stages are not equally spaced across time.

Process_Date: 2021
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:

Contact_Voice_Telephone: 800-727-9540
Contact_Facsimile_Telephone: 855-493-0447
Contact_Electronic_Mail_Address: SM.NASS.RDD.GIB@usda.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Grid Cell
Row_Count: 320
Column_Count: 507

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

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: 9000.000000
Ordinate_Resolution: 9000.000000

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: 298.257222

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Formulation for creating the Crop Progress Index is based on the phenological stages which are different for different crop types. For the purpose of this example, the wheat progress formula will be showcased, but the process is similar for other crops. The NASS recorded phenological stages for wheat are "planted", "emerged", "headed", and "harvested". The formula used to create the wheat Crop Progress Index is as follows: Wheat Progress=(planted+emerged+headed+harvested)/400. This results in an index with values ranging from 0 to 1, where 0 represents 0% planted, and 1 represents 100% harvested. All crops have the same value range. Those who wish to tie this index value to the original phenological categories should be aware that this formula equally spaces the phenological states across the range of the index, even though phenological stages are not equally spaced across time.

Entity_and_Attribute_Detail_Citation:

Detailed technical information on how the attribute values are calculated are available at <https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php>.

 Range_Domain_Minimum: 0 represents 0 percent 'Planted'
 Range_Domain_Maximum: 1 represents 100 percent 'Harvested'
 Attribute_Units_of_Measure: Crop Progress Index ranging from 0 to 1

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: 855-493-0447
Contact_Electronic_Mail_Address: SM.NASS.RDD.GIB@usda.gov
Contact_Instructions:

Please visit the official website <https://www.nass.usda.gov/Research_and_Science/Cropland/Release/index.php> for additional details and downloads.

Resource_Description: Crop Progress Data Layer
Distribution_Liability:

Disclaimer: Users of this data are solely responsible for interpretations made from these products. The data are provided 'as is' and the USDA, NASS does not warrant results you may obtain using this data. Contact our staff at (SM.NASS.RDD.GIB@usda.gov) if technical questions arise.

Crop Progress Data Layer

Metadata: