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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 CountyLevel Boundaries, (CoGenAll_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 county, state, and U.S. levels and are available in a digital format. TheResearch and Development Division of NASS modified generalized countyboundaries to show geographic areas for which the 2002 Agricultural Censusstatistics are reported at the county level. These county level boundary fileswere used in the production of the 2002 Census of Agriculture, AgriculturalAtlas of the United States. The boundary files can be employed in a GeographicInformation System (GIS) with the 2002 Agricultural Census statistical data byusing the Agricultural Census county codes to associate the county levelspatial entities with the county level statistical data.
Supplemental_Information:
These Agricultural Census countylevel boundary files may be used with statistical data in the 2002 Census ofAgriculture, Volume 1, Geographic Area Series, Parts 1 - 50.
United States Department of Agriculture, NationalAgricultural Statistics Service, 2004, 2002 Census of Agriculture County LevelBoundaries, (CoGenAll_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 county level boundary files.
2003: Modification of AgriculturalCensus county level boundaries data fields.
2002: Modification of county 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.
Indirect_Spatial_Reference:
U.S. Department of Commerce, 1990,Counties and Equivalent Entities of The United States, Its Possessions, andAssociated Areas (Federal Information Processing Standard 6-4): Washington,D.C. National Institute of Standards and Technology.
This is a Vector data set. It contains the following vectordata types (SDTS terminology):
Horizontal positions are specified in geographic coordinates,that is, latitude and longitude. Latitudes are given to the nearest .000001.Longitudes are given to the nearest .000001. Latitude and longitude values arespecified 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.
1.
CoGenAll_D02
County 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.
AGSTCOID
Full Agricultural Censusstate-county equivalent code. (Source: USDA, National Agricultural StatisticsService)
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Formal
codeset |
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Codeset
Name: |
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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGCONMLC
Lowercase county equivalent (oragriculture area) name. (Source: USDA, National Agricultural StatisticsService)
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Formal
codeset |
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Codeset
Name: |
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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGCONMUC
Uppercase county equivalent (oragriculture area) name. (Source: USDA, National Agricultural StatisticsService)
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Formal
codeset |
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Codeset
Name: |
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. |
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Codeset
Source: |
U.S. Bureau of the Census |
AGCOACRE
Land area in acres of a countyequivalent (or agriculture area). (Source: USDA, National AgriculturalStatistics Service)
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Range
of values |
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Minimum: |
3088 (actual value, not min. range value) |
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Maximum: |
170527730.56 (actual value, not max. range value) |
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Units: |
Acre |
AGCOSQMI
Land area in square miles of acounty equivalent (or agriculture area). (Source: USDA, National AgriculturalStatistics Service)
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Range
of values |
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Minimum: |
4.825 (actual value, not min. range value) |
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Maximum: |
266449.579 (actual value, not max. range value) |
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Units: |
Square mile |
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 |
AGCOID
Agricultural Census countyequivalent codes (Source: USDA, National Agricultural Statistics Service)
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Formal
codeset |
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Codeset
Name: |
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. |
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Codeset
Source: |
U.S. Bureau of the Census |
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 county level. The boundary data are designed for small scale thematicmapping applications at a scale of 1:20,000,000 or smaller (e.g., 1:50,000,000,etc.). The county level boundaries are provided "as is". TheUSDA/NASS does not warrant the results you may obtain using the AgriculturalCensus county level boundary data.
USCOBDY (source 1 of 10)
U.S. Bureau of the Census, Geography Division, 2000,st99co_g.shp, -.shx, -.dbf (Generalized digital vector files): U.S. Bureau ofthe 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 10)
U.S. Bureau of the Census, Geography Division, 2000,co15_d02.shp, -.shx, -.dbf (Hawaii's digital vector files): U.S. Bureau of theCensus, Geography Division, Upper Marlboro, MD.
Online Links:
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Type_of_Source_Media: online
Source_Scale_Denominator:5000000
Source_Contribution:spatial and attribute information
USCOAREA (source 3 of 10)
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:attribute information
USCOFIPSCONV (source 4 of10)
USDA, National Agricultural Statistics Service, 2001,U.S. county FIPS codes conversion to Agricultural Census county codes: USDA,National Agricultural Statistics Service, Washington, DC.
Type_of_Source_Media:paper
Source_Contribution:attribute information
MULTIUSCOBDY (source 5 of10)
USDA, National Agricultural Statistics Service, 2002,Separated (AK, HI, PR, continental US) county 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
AGUSCOBDY (source 6 of 10)
USDA, National Agricultural Statistics Service, 2002,Agricultural Census county level boundary files: USDA, National AgriculturalStatistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
SQMIACREUSCO (source 7 of10)
USDA, National Agricultural Statistics Service, 2002,Recalculated Agricultural Census county level land area values: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Contribution:attribute information
AREAUSCOBDY (source 8 of 10)
USDA, National Agricultural Statistics Service, 2002,Agricultural Census county level boundary files with updated land areas: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
ALLUSCOBDY (source 9 of 10)
USDA, National Agricultural Statistics Service, 2002,Single file of all Agricultural Census county level boundaries: USDA, NationalAgricultural Statistics Service, Washington, DC.
Type_of_Source_Media:online
Source_Scale_Denominator:20000000
Source_Contribution:spatial and attribute information
CoGenAll_D02 (source 10 of10)
USDA, National Agricultural Statistics Service, 2003,Finalized file of Agricultural Census county 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 7)
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 7)
2 - Creation of separate spatialfiles. The single original generalized county level boundary file was splitinto 4 county boundary files: Alaska, Puerto Rico, continental U.S., andHawaii, (Hawaii's more detailed county boundary was used in place of Hawaii'sgeneralized county boundary. Islands west of -160.25 degrees longitude weredeleted).
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 3 of 7)
3 - Modification of county levelboundaries and codes. A field was added to the boundary files and populatedwith the combined state and county Federal Information Processing (FIPS) codes.A field was added to the boundary files and populated with the county names inupper case. The Area field of the boundary files contained erroneous values, sozeros replaced the area values. Several unnecessary fields of the boundaryfiles were deleted (Perimeter, etc.). County 12086 had its FIPS code changed to12025. Some of the original county level boundaries were modified to showgeographic areas for which 2002 agricultural census statistics are reported.Certain individual counties were assigned the FIPS code of a designatedadjacent or surrounding county. Counties were aggregated by dissolvingboundaries between counties which had the same county FIPS code. The followingis a list of counties with modified boundaries. The Agricultural Census countycodes and associated (=) U.S. county FIPS codes are identified below.
02010 = 02010, 02013, 02016, 02050,02060, 02070, 02150, 02164, 02180, 02185, 02188.
02020 = 02020, 02170, 02261.
02090 = 02090, 02068, 02240, 02290.
02110 = 02110, 02100, 02130, 02201,02220, 02232, 02280, 02282.
15009 = 15009, 15005.
24033 = 24033, 11001.
24005 = 24005, 24510.
29189 = 29189, 29510.
51003 = 51003, 51540.
51005 = 51005, 51560, 51580.
51015 = 51015, 51790, 51820.
51019 = 51059, 51515.
51031 = 51031, 51680.
51041 = 51041, 51570.
51059 = 51059, 51510, 51600, 51610.
51069 = 51069, 51840.
51077 = 51077, 51640.
51081 = 51081, 51595.
51087 = 51087, 51760.
51089 = 51089, 51690.
51095 = 51095, 51830.
51121 = 51121, 51750.
51143 = 51143, 51590.
51149 = 51149, 51670, 51730.
51153 = 51153, 51683, 51685.
51161 = 51161, 51770, 51775.
51163 = 51163, 51530, 51678.
51165 = 51165, 51660.
51175 = 51175, 51620.
51177 = 51177, 51630.
51191 = 51191, 51520.
51195 = 51195, 51720.
51199 = 51199, 51650, 51700, 51735.
51550 = 51550, 51740.
51810 = 51810, 51710.
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 4 of 7)
4 - Calculation of land area. Theland area values (in square miles) of aggregated counties in the area-perimeterfile were calculated by summing the land area values of the aggregated counties(see above list of aggregated counties). A field was added to thearea-perimeter file to contain the county acreage. The land area values (inacres) of aggregated counties were calculated by multiplying the land area (insquare miles) of the aggregated counties by 640 (1 square mile contains 640acres).
Data sources used in this process:
Data sources produced in this process:
Date: 2002 (process 5 of 7)
5 - Modification and update ofcounty level boundary file. The Agricultural Census county boundary files weremodified to contain fields for county area in square miles and acreage. The newarea fields were populated with data from the area-perimeter file.
Data sources used in this process:
Data sources produced in this process:
Date: 2003 (process 6 of 7)
6 - Creation of single spatialfile. The separate Agricultural Census county level boundary files for Alaska,Hawaii, Puerto Rico and the continental U.S. were merged into a singleAgricultural Census county level boundary file.
Data sources used in this process:
Data sources produced in this process:
Date: 2003 (process 7 of 7)
7 - Modification of field names.Field names were modified and some fields were rearranged in the AgriculturalCensus county 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 6-4, except Miami-DadeCounty, Florida which has a county code of 025 rather than the county FIPS codeof 086. Area values in square miles are derived from land polygon area valuesfrom the U.S. Census Bureau's TIGER database.
2.
The county 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 county equivalent (oragricultural census area in Alaska). The land area values are based on the areaof land polygons from the U.S. Census Bureau's TIGER database. If a county iscomposed of several polygons, the area value assigned to each polygon is theland area value of the entire county (for the purpose of choropleth mapping).Some of the county level boundaries were modified to show geographic areas forwhich Agricultural Census statistics are reported. County Federal InformationProcessing (FIPS) codes for the modified counties were replaced by AgriculturalCensus county codes. States with modifications to their county boundaries andcounty codes are - Alaska, Hawaii, Maryland, Missouri, Virginia (and the Districtof Columbia).
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 ofAgriculture, State and County Data, Volume 1 (Full Set on CD-ROM), ordownloadable county level boundary files.
3.
Users of the Agricultural Census county-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 county level boundary data.
4.
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Data format: |
ESRI Shapefile (.shp, .shx., .dbf, .sbn, .sbx, .prj) Size: 1.15 |
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Network links: |
<http://www.nass.usda.gov/census/census02/atlas02/CoGenAll_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)