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2002 Census of Agriculture Maps and Cartographic Resources |
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2002 Census of Agriculture Maps and Cartographic Resources |
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Metadata also available as - [Parseabletext]
Title:
2002 Census of Agriculture StateLevel Boundaries, (StGenAll_D02.shp -.shx, -.dbf, -.sbn, -.sbx, -.prj)
Abstract:
The United States Department ofAgriculture (USDA), National Agricultural Statistics Service (NASS) conductedan Agricultural Census in 2002. The statistical census data are summarized atthe state, county, and U.S. levels and are available in a digital format. TheResearch and Development Division of NASS modified generalized state boundariesto show geographic areas for which the 2002 Agricultural Census statistics arereported at the state level. These state level boundary files were used in theproduction of the 2002 Census of Agriculture, Agricultural Atlas of the UnitedStates. The boundary files can be employed in a Geographic Information System(GIS) with the 2002 Agricultural Census statistical data by using theAgricultural Census state codes to associate the state level spatial entitieswith the state level statistical data.
Supplemental_Information:
These Agricultural Census statelevel boundary files may be used with statistical data in the 2002 Census ofAgriculture, Volume 1, Geographic Area Series, Parts 1 - 51.
United States Department of Agriculture, NationalAgricultural Statistics Service, 2004, 2002 Census of Agriculture State LevelBoundaries, (StGenAll_D02.shp -.shx, -.dbf, -.sbn, -.sbx, -.prj): U.S.Department of Agriculture, National Agricultural Statistics Service, Fairfax,Virginia.
Online Links:
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2.
West_Bounding_Coordinate:-178.873024
East_Bounding_Coordinate:-65.244424
North_Bounding_Coordinate:71.352561
South_Bounding_Coordinate:17.945846
3.
Calendar_Date: 2004
Currentness_Reference:
2004: Publication of AgriculturalCensus state level boundary files.
2003: Modification of AgriculturalCensus state level boundaries data fields.
2002: Creation of state levelboundaries and recalculation of land area.
2001: Procurement of county levelboundaries and area data files.
2000: County level boundarycreation and calculation of area.
4.
Geospatial_Data_Presentation_Form:vector digital data
5.
a.
Indirect_Spatial_Reference:
U.S. Department of Commerce, 1987,Codes for the Identification of the States, the District of Columbia and theOutlying Areas of The United States, and Associated Areas (Federal InformationProcessing Standard 5-2): Washington, D.C., National Institute of Standards andTechnology.
This is a Vector data set. It contains the following vectordata types (SDTS terminology):
Horizontal positions are specified in geographiccoordinates, that is, latitude and longitude. Latitudes are given to thenearest .000001. Longitudes are given to the nearest .000001. Latitude andlongitude values are specified in Decimal Degrees.
The horizontal datum used is North
American Datumof 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.0.
The flattening of the ellipsoid used is 1/298.257222.
6.
StGenAll_D02
State level boundaries ofgeographic areas for which 2002 Agricultural Census statistics are reported.(Source: USDA, National Agricultural Statistics Service.)
FID
Internal feature identificationnumber. (Source: ESRI)
Sequential unique whole numbers automaticallygenerated.
SHAPE
Feature geometry. (Source: ESRI)
Coordinates defining the features.
AGSTID
State equivalent FIPS code.(Source: USDA, National Agricultural Statistics Service)
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Formal
codeset |
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Codeset
Name: |
U.S. Department of Commerce, 1987, 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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGSTABBR
State abbreviation. (Source: USDA,National Agricultural Statistics Service)
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Formal
codeset |
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Codeset
Name: |
U.S. Department of Commerce, 1987, 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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGSTNMLC
Lowercase state equivalent name.(Source: USDA, National Agricultural Statistics Service)
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Formal
codeset |
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Codeset
Name: |
U.S. Department of Commerce, 1987, 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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGSTNMUC
Uppercase state equivalent name.(Source: USDA, National Agricultural Statistics Service)
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Formal
codeset |
|
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Codeset
Name: |
U.S. Department of Commerce, 1987, 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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGSTACRE
Land area in acres of a stateequivalent. (Source: USDA, National Agricultural Statistics Service)
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Range
of values |
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Minimum: |
668753.28 (actual value, not min. range value) |
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Maximum: |
366048788.48 (actual value, not max. range value) |
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Units: |
Acre |
AGSTSQMI
Land area in square miles of astate equivalent. (Source: USDA, National Agricultural Statistics Service)
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Range
of values |
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Minimum: |
1044.927 (actual value, not min. range value) |
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Maximum: |
571951.232 (actual value, not max. range value) |
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Units: |
Square mile |
2.
Research and Development Division staff
3.
Geographic
Information Branch staff
USDA/NASS/RDD/GIB
3251 Old Lee Highway, Suite 301
Fairfax, VA 22030
703-235-1971 (voice)
703-235-3386 (FAX)
HQ_RD_OD@nass.usda.gov
The boundaries are intended for geographic display andanalysis at the state level. The boundary data are designed for small scalethematic mapping applications at a scale of 1:20,000,000 or smaller (e.g.,1:50,000,000, etc.). The state level boundaries are provided "as is".The USDA/NASS does not warrant the results you may obtain using theAgricultural Census state level boundary data.
USCOBDY (source 1 of 9)
U.S. Bureau of the Census, Geography Division, 2000,st99co_g.shp, -.shx, -.dbf (Generalized county level boundary files): U.S.Bureau of the Census, Geography Division, Upper Marlboro, MD.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
HICOBDY (source 2 of 9)
U.S. Bureau of the Census, Geography Division, 2000,co15_d02.shp, -.shx, -.dbf (Hawaii's county level boundary files): U.S. Bureauof the Census, Geography Division, Upper Marlboro, MD.
Online Links:
o
Type_of_Source_Media:online
Source_Scale_Denominator:5000000
Source_Contribution:spatial and attribute information
USCOAREA (source 3 of 9)
U.S. Bureau of the Census, Geography Division, 2000,area_perimeter_data.dbf (U.S. county land area, perimeter data): U.S. Bureau ofthe Census, Geography Division, Upper Marlboro, MD.
Type_of_Source_Media:online
Source_Contribution: attributeinformation
USSTBDY (source 4 of 9)
USDA, National Agricultural Statistics Service, 2002,US state level boundary files: USDA, National Agricultural Statistics Service,Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
MULTIUSSTBDY (source 5 of 9)
USDA, National Agricultural Statistics Service, 2002,Separated (AK, HI, PR, continental US) state level boundary files: USDA,National Agricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
SQMIACREUSST (source 6 of 9)
USDA, National Agricultural Statistics Service, 2002,Recalculated Agricultural Census state level land area values: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Contribution:attribute information
AREAUSSTBDY (source 7 of 9)
USDA, National Agricultural Statistics Service, 2002,Agricultural Census state level boundary files with updated land areas: USDA,National Agricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
ALLUSSTBDY (source 8 of 9)
USDA, National Agricultural Statistics Service, 2002,Single file of all Agricultural Census state level boundaries: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
StGenAll_D02 (source 9 of 9)
USDA, National Agricultural Statistics Service, 2003,Finalized file of Agricultural Census state level boundaries: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
Date: 2001 (process 1 of 8)
1 - Procurement of spatial andattribute data. The original generalized unprojected county level boundary datafiles and a separate county area-perimeter data file were obtained by specialrequest from the U.S. Bureau of the Census, Geography Division. The spatialdata file format is Environmental Systems Research Institute's (ESRI) ArcViewshapefile format. The area data file format is dBASE. Hawaii's county boundaryfiles (scale 1:5000000) were downloaded from the U.S. Census Bureau'sCartographic Boundary Files web site.
Data sources used in this process:
Date: 2001 (process 2 of 8)
2 - Creation of state boundaryfiles. State boundary files were created from county level boundary files bydissolving boundaries between counties which had the same state FIPS code. TheDistrict of Columbia was assigned Maryland's state FIPS code. The Maryland andD.C. state level boundaries were aggregated by dissolving boundaries betweenD.C. and Maryland which had the same state FIPS code.
Data sources used in this process:
Data sources produced in this process:
Date: 2001 (process 3 of 8)
3 - Creation of separate spatialfiles. The single state level boundary file was split into 4 state boundaryfiles: Alaska, Puerto Rico, continental U.S., and Hawaii, (Hawaii's moredetailed state boundary was used in place of Hawaii's generalized stateboundary. Islands west of -160.25 degrees longitude were deleted).
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 4 of 8)
4 - Modification of state levelboundary file fields. A field was added to the boundary files and populatedwith the state names in upper case. A field was added to the boundary files andpopulated with the state abbreviations. The Area field of the boundary filescontained erroneous values, so zeros replaced the area values. Severalunnecessary fields of the boundary files were deleted (Perimeter, etc.).
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 5 of 8)
5 - Calculation of state land area.A state land area file was made from a copy of the area-perimeter file. A fieldwas added to the state land area file to contain the state area in square milesand was populated by summing the county land area values (in square miles) foreach state. The state land area values for Maryland and D.C. were addedtogether. A field was added to the state land area file to contain the stateacreage. The land area values (in acres) of states were calculated bymultiplying the state land area (in square miles) by 640 (1 square milecontains 640 acres).
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 6 of 8)
6 - Modification and update ofstate level boundary file. The Agricultural Census state boundary files weremodified to contain fields for state area in square miles and acreage. The newarea fields were populated with data from the state land area file.
Data sources used in this process:
Data sources produced in this process:
Date: 2003 (process 7 of 8)
7 - Creation of single spatialfile. The separate Agricultural Census state level boundary files for Alaska,Hawaii, Puerto Rico and the continental U.S. were merged into a singleAgricultural Census state level boundary file.
Data sources used in this process:
Data sources produced in this process:
Date: 2003 (process 8 of 8)
8 - Modification of field names. Fieldnames were modified and some fields were rearranged in the Agricultural Censusstate level boundary file.
Data sources used in this process:
Data sources produced in this process:
Unmodified entities have entity codes and nameswhich conform to the Federal Information Processing Standard 5-2. Area valuesin square miles are derived from land polygon area values from the U.S. CensusBureau's TIGER database.
2.
The state level boundary data are highlygeneralized and suitable for use in small scale (1:20,000,000) thematic mappingapplications. No accuracy tests were performed.
3.
The generalized data do NOT include 1) boundariesfor the Aleutian Islands in the Eastern Hemisphere, 2) boundaries for HawaiianIslands west of -160.25 degrees longitude, 3) very small polygons because ofcoordinate thinning, and 4) water polygons. This data set provides the landarea in square miles and number of acres for each state equivalent. The land areavalues are based on the area of land polygons from the U.S. Census Bureau'sTIGER database. If a state is composed of several polygons, the area valueassigned to each polygon is the land area value of the entire state (for thepurpose of choropleth mapping). The state level boundary for Maryland wasmodified to include the District of Columbia (D.C.), because AgriculturalCensus data for D.C. are not reported separately. State level FederalInformation Processing (FIPS) codes are used to identify states. BecauseMaryland and D.C. state boundaries were aggregated, Maryland's FIPS code 24represents Maryland (24) and D.C. (11).
4.
No topological checks were performed on the data.
Are there legal restrictions onaccess or use of the data?
Access_Constraints: None
Use_Constraints:
None. Acknowledgment of the U.S.Department of Agriculture, National Agricultural Statistics Service would beappreciated in products derived from these data files.
NASS
5285 Port Royal Road
Springfield, Virginia 22161
USA
1-800-999-6779 (voice)
703-605-6900 (FAX)
helpdesk@ntis.gov
AC02-CD-VOL1, United States: 2002 Census of Agriculture, State and County Data, Volume 1(Full Set on CD-ROM), or downloadable state level boundary files.
3.
Users of the Agricultural Census state level boundarydata are solely responsible for interpretations made from the product. Theboundary data are provided "as is". USDA/NASS does not warrantresults you may obtain by using the boundary data. Feel free to contact ourstaff at (HQ_RD_OD@nass.usda.gov) if technical questions arise in the use ofthe state level boundary data.
4.
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Data format: |
ESRI Shapefile (.shp, .shx., .dbf, .sbn, .sbx, .prj) Size: .25 |
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Network links: |
<http://www.nass.usda.gov/census/census02/atlas02/StGenAll_D02.zip> |
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Media you can order: |
CD_ROM (format ISO 9660) |
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There is no charge for the online option. CD-ROMsare available for sale through the National Technical Information Service.
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For information or to order a CD-ROM dial1-800-999-6779 from 8:30 a.m. - 5:00 p.m. ET, Monday - Friday except on Federalholidays. Outside the U.S., please dial 1-703-605-6220. To order a CD-ROMonline visit <http://www.usda.gov/nass/pubs/catalog.htm#order>
Dates:
Last modified: 03-Jun-2004
Metadata author:
USDA/NASS/RDD/GIB
3251 Old Lee Highway, Suite 301
Fairfax, VA 22030
USA
703-235-1971 (voice)
703-235-3386 (FAX)
HQ_RD_OD@nass.usda.gov
Metadata standard:
FGDC Content Standards for DigitalGeospatial Metadata (FGDC-STD-001-1998)