Stratification of Alabama 2014

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

United States Department of Agriculture, National Agricultural Statistics Service, Research and Development Division, Geospatial Science and Survey Section

Publication_Date: 2014

Title: Stratification of Alabama 2014

Publication_Information:

Publication_Place: Washington, DC

Publisher:

U.S. Department of Agriculture, National Agricultural Statistics Service

Online_Linkage:

<http://www.nass.usda.gov/research_and_science/Stratafront2B.php>

Description:

Abstract:

The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) area sampling frame is a delineation of all parcels of land for the purpose of later sampling the parcels. The area frame is constructed by visually interpreting satellite imagery to divide a state into homogenous land use areas (strata) based on percent cultivated. The strata are typically defined as low, medium or high percent cultivated, non-agricultural land, urban use, agri-urban, or water. The boundaries of the strata usually follow identifiable features such as roads, railroads and waterways. The strata boundaries do not coincide with any political boundaries, with the exception of state boundaries.

Purpose:

These data are intended for geographic display and analysis at the state level. The data should be displayed and analyzed at a scale of 1:100,000 or smaller (e.g., 1:250,000, etc.). The strata data are provided "as is". USDA/NASS does not warrant results you may obtain using the strata data.

Supplemental_Information: N/A

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2014

Currentness_Reference: N/A

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -88.47

East_Bounding_Coordinate: -84.89

North_Bounding_Coordinate: 35.00

South_Bounding_Coordinate: 30.22

Keywords:

Theme:

Theme_Keyword_Thesaurus:

National Agricultural Statistics Service, U.S. Department of Agriculture, 2014, Area Frame Design for Agricultural Surveys, Washington, D.C., NASS/USDA.

Theme_Keyword: Stratification

Theme_Keyword: Area sampling frame

Theme_Keyword: Land use classes (strata)

Place:

Place_Keyword_Thesaurus:

U.S. Department of Commerce, 2014, Codes for the Identification of the States, the District of Columbia and the Outlying Areas of The United States, and Associated Areas (Federal Information Processing Standard 5-2): Washington, D.C., National Institute of Standards and Technology.

Place_Keyword: United States

Place_Keyword: USA

Place_Keyword: Alabama

Access_Constraints: None

Use_Constraints:

None. Acknowledgment of the U.S. Department of Agriculture, National Agricultural Statistics Service would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Matt Deaton

Contact_Organization: USDA/NASS/RDD/GIB/GEOSSS

Contact_Address:

Address_Type: mailing address

Address: 1400 Independence Avenue, SW

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20250

Contact_Voice_Telephone: 202-690-0449

Contact_Electronic_Mail_Address: HQ_RD_OD@nass.usda.gov

Data_Set_Credit: Geospatial Science and Survey Section

Native_Data_Set_Environment: Environmental Systems Research Institute ArcMap 10.3 Shapefile

Data_Quality_Information:

Logical_Consistency_Report:

Checks for topological consistency were performed on this data set.

Completeness_Report:

There are known gaps and overlaps. This data set includes the area in square miles and number of acres for each strata. Boundaries may not be coincident with strata boundaries of adjacent states.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The sources used for digitizing strata boundaries are 1:100,000 scale Digital Raster Graphics

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: 5.0

Horizontal_Positional_Accuracy_Explanation:

Not more than 10 percent of the test points shall be in error by more than 1/50 of an inch on origial topo map.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geologic Survey (USGS)

Publication_Date: 1979 - 1991

Title: USGS Topographic Quadrangles

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geologic Survey

Source_Scale_Denominator: 100000

Type_of_Source_Media: On-line

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1978

Ending_Date: 1990

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: TopoDRG100

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: Farm Service Agency

Publication_Date: 2010

Title: National Agriculture Imagery Program (NAIP)

Publication_Information:

Publication_Place: Salt Lake City, UT

Publisher: Aerial Photography Field Office (APFO)

Source_Scale_Denominator: 40000

Type_of_Source_Media: On-line

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2010

Source_Currentness_Reference: Source photography date

Source_Citation_Abbreviation: NAIP

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)

Publication_Date: 1979 - 1991

Title: USGS Topographic Quadrangles

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 24000

Type_of_Source_Media: On-line

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1978

Ending_Date: 1990

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: TopoDRG24

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: United States Census Bureau

Publication_Date: 2010

Title: TIGER Digital Vector Files

Publication_Information:

Publication_Place: Suitland, MD

Publisher: U.S. Census Bureau

Type_of_Source_Media: On-line

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2010

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: TIGER

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: USDA/NASS/RDD/GEOSSS

Publication_Date: 2009 - 2014

Title: Cropland Data Layer

Publication_Information:

Publication_Place: Washington, DC

Publisher: USDA/NASS/RDD/GIB/GEOSSS

Type_of_Source_Media: on-line

Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 2013

Single_Date/Time:

Calendar_Date: 2012

Single_Date/Time:

Calendar_Date: 2011

Single_Date/Time:

Calendar_Date: 2010

Single_Date/Time:

Calendar_Date: 2009

Source_Currentness_Reference: Scene date

Source_Citation_Abbreviation: NASS-CDL

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: NASA

Publication_Date: 2012

Title: Landsat 5 Thematic Mapper Imagery

Publication_Information:

Publication_Place: Lanham, MD

Publisher: Space Imaging

Source_Scale_Denominator: 250000

Type_of_Source_Media: On-line

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: TM5

Source_Contribution: Spatial and attribute information

Source_Information:

Source_Citation:

Citation_Information:

Originator: National Agricultural Statistics Service

Publication_Date: 2014

Title: Geospatial Science and Survey Section for Agricultural Surveys

Publication_Information:

Publication_Place: Washington, DC

Publisher: NASS/USDA

Type_of_Source_Media: Paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2014

Source_Currentness_Reference: Publication date

Source_Citation_Abbreviation: AFSPaper

Source_Contribution: Spatial and attribute information

Process_Step:

Process_Description:

The area sampling frame for Alabama was constructed for use in 2014 and was based on USGS 1:24,000 and 1:100,000 scale topographic maps, 1:250,000 scale Landsat imagery, and 1 meter resolution NAIP imagery. Individual county files were merged into single statefile. The coordinates for the strata polygons are unprojected to geographic latitude and longitude (decimal degrees). The spatial data file format is Environmental Systems Research Institute's ArcMap 10.3 shapefile format. Gaps and overlaps were corrected within and ESRI personal geodatabase.

Source_Used_Citation_Abbreviation: TopoDRG100

Source_Used_Citation_Abbreviation: NAIP

Source_Used_Citation_Abbreviation: TopoDRG24

Source_Used_Citation_Abbreviation: TIGER

Source_Used_Citation_Abbreviation: TM5

Source_Used_Citation_Abbreviation: GEOSSSPaper

Source_Used_Citation_Abbreviation: NASS-CDL

Process_Date: 2014

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

U.S. Department of Commerce, 1990, Counties and Equivalent Entities of The United States, Its Possessions, and Associated Areas (Federal Information Processing Standard 6-4): Washington, D.C. National Institute of Standards and Technology.

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-Polygon

Point_and_Vector_Object_Count: 7

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 16

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996

Longitude_of_Central_Meridian: -99.00

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000.00

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 30

Ordinate_Resolution: 30

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference 80

Semi-major_Axis: 6378137.00

Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Land Use Strata

Entity_Type_Definition: Homogeneous land use area based on percent cultivated

Entity_Type_Definition_Source:

U.S. Department of Agriculture, National Agricultural Statistics Service

Attribute:

Attribute_Label: Strata

Attribute_Definition: Land use category based on percent cultivated

Attribute_Definition_Source:

U.S. Department of Agriculture, National Agricultural Statistics Service

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 13

Enumerated_Domain_Value_Definition: > 50% CULTIVATED

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Enumerated_Domain:

Enumerated_Domain_Value: 20

Enumerated_Domain_Value_Definition: 15-50% CULTIVATED

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Enumerated_Domain:

Enumerated_Domain_Value: 31

Enumerated_Domain_Value_Definition: AGRI-URBAN, MORE THAN 100 DWELLINGS PER SQ. MILE

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Enumerated_Domain:

Enumerated_Domain_Value: 32

Enumerated_Domain_Value_Definition: RESIDENTIAL-COMMERCIAL, > 100 DWELLINGS PER SQ. MILE

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Enumerated_Domain:

Enumerated_Domain_Value: 40

Enumerated_Domain_Value_Definition: < 15% CULTIVATED

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Enumerated_Domain:

Enumerated_Domain_Value: 50

Enumerated_Domain_Value_Definition: NON AGRICULTURAL

Enumerated_Domain_Value_Definition_Source:

"2014 Area Frame Design Information, Implementation Years of Current NASS Area Frames", NASS Geospatial Science and Survey Section, 2014.

Attribute:

Attribute_Label: Sum_area

Attribute_Definition: The stratum area in square miles.

Attribute_Definition_Source:

U.S. Department of Agriculture, National Agricultural Statistics Service

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 50.64 (actual value, not range)

Range_Domain_Maximum: 43,907.71

Attribute:

Attribute_Label: Sum_acres

Attribute_Definition: The amount of acres in a stratum.

Attribute_Definition_Source:

U.S. Department of Agriculture, National Agricultural Statistics Service

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 32,407.35 (actual value, not range)

Range_Domain_Maximum: 28,100,937.26 (actual value, not range)

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA/NASS/RDD/GIB/GEOSSS

Contact_Address:

Address_Type: mailing address

Address: 1400 Independence Avenue, SW

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20250

Contact_Voice_Telephone: 202-690-0449

Contact_Instructions: N/A

Distribution_Liability:

Users of the strata data are solely responsible for interpretations made from the product. The strata data are provided "as is". USDA/NASS does not warrant results you may obtain by using the strata data. Feel free to contact our staff at (HQ_RD_OD@nass.usda.gov) if technical questions arise in the use of the strata data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Shapefile

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://www.nass.usda.gov/research_and_science/Stratafront2B.php>

Fees: There is no charge for the online option.

Ordering_Instructions: N/A

Metadata_Reference_Information:

Metadata_Date: 20190628

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Matthew Deaton

Contact_Organization: USDA/NASS/RDD/GIB/GEOSSS

Contact_Address:

Address_Type: mailing address

Address: 1400 Independence Avenue, SW

City: Washington

State_or_Province: District of Columbia

Postal_Code: 20250

Contact_Voice_Telephone: 202-690-0449

Contact_Electronic_Mail_Address: HQ_RD_OD@nass.usda.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None