Metadata for US48CTY
Identification_Information
Abstract
Purpose
Supplemental Information
Data_Quality_Information
Spatial_Data_Organization_Information
Entity_and_Attribute_Information
Detailed Description
Overview
Distribution_Information
Metadata_Reference_Section
Citation_Information
Originator: Dean Oman
Publication_Date: 2002
Title: County Boundaries for the Conterminous United States
Geospatial_Data_Presentation_Format: Arc/Info
Publication_Information
Publication_Place: Washington, DC
Publisher: NRCS
Other_Citation_Details: NRI Map Room coverage
Online_Linkage: ftp://ftp-fc.sc.egov.usda.gov/NHQ/pub/land/arc_export/us48cty.e00.zip
Description
Abstract
County boundaries for the conterminous United States.
Purpose
This coverage is intended as a basemap for national level analysis.
Supplemental_Information
Procedures_Used
This coverage contains the county boundaries for the
conterminous United States. The coverage was extracted from
the HUCCO coverage created by Iowa State University for the National Resources I
Documentation on the HUCCO coverage is available in PDF form
at http://www.statlab.iastate.edu/survey/nri/papers/geostatistical.pdf
The county information in that coverage is derived from U.S. Census
Bureau TIGER files. ISU made changes to several of the FIPS
attributes. Those changes are documented in a PDF files at
http://www.nrcs.usda.gov/technical/NRI/maps/aboutmaps/fipschanges.html .
NRCS clipped the coverage to a shoreline created by the National
Center for Resource Innovations (NCRI). NCRI derived the
shoreline from 1:2,000,000 scale USGS Digital Line Graph (DLG) files.
Revisions
This coverage was last updated in 2002.
Reviews_Applied_to_Data
This coverage has received no formal review.
Related_Spatial_and_Tabular_Data_Sets
Other NRI Map Room basemap coverages include hydrologic units and Federal l
derived from USGS coverages, and a Major Land Resource Areas (MLRA) coverage
derived from the MLRA map in Agricultural Handbook 296. These are intended to
have the same shoreline and outer boundaries, although this has not been
thoroughly verified.
References_Cited
NRCS National Headquarters Resources Inventory and Assessment Division.
Notes
Time_Period_of_Content
Currentness_Reference
This coverage was last updated in 2002.
Status
Progress: complete
Maintenance_and_Update_Frequency
as needed
Spatial_Domain
Bounding_Coordinates
West_Bounding_Coordinate: -127.87098736
East_Bounding_Coordinate: -65.35700008
North_Bounding_Coordinate: 48.24405827
South_Bounding_Coordinate: 22.87753429
Keywords
Theme
Theme_Keyword_Thesaurus: None
Theme_Keyword: Counties
Place
Place_Keyword_Thesaurus: None
Place_Keyword: conterminous United States
Stratum
Stratum_Keyword_Thesaurus: None
Stratum_Keyword:
Temporal
Temporal_Keyword_Thesaurus: None
Temporal_Keyword:
Access_Constraints
none
Use_Constraints
This coverage is designed for national, regional, and state level analysis.
It may not be appropriate for use at larger scales. This coverage does
not meet National Map Accuracy Standards.
Point_of_Contact: See Distribution_Information for contact information.
Data_Set_Credit
USGS
Mark Rogers, ISU, mtrogers@iastate.edu
Dean Oman at dean.oman@wdc.usda.gov
the RIAD staff at nri@wdc.usda.gov
George Muehlbach, NCRI, made the shoreline.
Security_Information
Security_Classification_System: None
Security_Classification: UNCLASSIFIED
Security_Handling_Description: None
Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 7.2.1
Cross_Reference
Originator: Dean Oman
Publication_Date: 2002
Publication_Time:
Title: County Boundaries for the Conterminous United States
Edition:
Geospatial_Data_Presentation_Form: Arc/Info
Series_Information
Series_Name:
Issue_Identification:
Publication_Information
Publication_Place: Washington, DC
Publisher: NRCS
Other_Citation_Details: NRI Map Room coverage
Online_Linkage:
ftp://ftp-fc.sc.egov.usda.gov/NHQ/pub/land/arc_export/us48cty.e00.zip
Larger_Work_Citation:
Attribute_Accuracy
Attribute_Accuracy_Report: See Entity_Attribute_Information
Quantitative_Attribute_Accuracy_Assessment
Attribute_Accuracy_Value: See Explanation
Attribute_Accuracy_Explanation:
Attribute accuracy is described, where present, with each
attribute defined in the Entity and Attribute Section.
Logical_Consistency_Report: Polygon topology present.
Completeness_Report
complete
Positional_Accuracy
Horizontal_Positional_Accuracy
Horizontal_Positional_Accuracy_Report:
Vertical_Positional_Accuracy
Vertical_Positional_Accuracy_Report:
Lineage: See Supplemental_Information for overview.
Process_Steps
Process_Step
Process_Description: DOMAN UNION US48CTYCT /GIS/ARC/PERMANENT/OUT/US48OUT US48CTYDI 0.001
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1003
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN BUILD US48CTYDI LINE
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1003
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN IDEDIT US48CTYDI LINE
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1003
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN BUILD US48CTYDI LINE
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1003
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ELIMINATE US48CTYDI US48CTYD NOKEEPEDGE POLY
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1003
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ARCEDIT /GIS/ARC/PERMANENT/CTY/US48CTYD
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1101
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ARCEDIT /GIS/ARC/PERMANENT/CTY/US48CTYD
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1144
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ARCEDIT /GIS/ARC/PERMANENT/CTY/US48CTYD
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1247
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ARCEDIT /GIS/ARC/PERMANENT/CTY/US48CTYD
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1248
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN DISSOLVE US48CTYD US48CTYE CTY
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1249
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN ARCEDIT /GIS/ARC/PERMANENT/CTY/US48CTYE
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1315
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: DOMAN COPY US48CTYE US48CTY
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1316
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: KMUSSER EXPORT COVER US48CTY /DATA/EQIP/US48CTY
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1420
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: KMUSSER DOCUMENT US48CTY COPY /GIS/ARC/PERMANENT/HU8/US48HU8 KMUSSER
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1506
Source_Produced_Citation_Abbreviation: None
Process_Step
Process_Description: KMUSSER DOCUMENT US48CTY UPDATE KMUSSER
Source_Used_Citation_Abbreviation:None
Process_Date: 20020207
Process_Time: 1518
Source_Produced_Citation_Abbreviation: None
Cloud_Cover
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information
SDTS_Terms_Description
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4395
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 10545
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains'
Point_and_Vector_Object_Count: 4396
Horizontal_Coordinate_System_Definition
Planar
Map_Projection:
Map_Projection_Name: ALBERS
Longitude_of_Central_Meridian: -96
Latitude_of_Projection_Origin: 23
Latitude_of_First_Standard_Parallel: 29.5
Latitude_of_Second_Standard_Parallel: 45.5
False_Easting: 0.00000
False_Northing: 0.00000
Geodetic Model
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6,378,206.4
Denominator_of_Flattening: 294.98
Detailed_Description
Entity_Type
Entity_Type_Label: US48CTY.PAT
Entity_Type_Definition: County attributes
Entity_Type_Definition_Source: ARC/INFO
Attribute:
Attribute_Label: -
Attribute_Definition: County attributes
Attribute_Definition_Source: ARC/INFO
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: -
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: AREA
Attribute_Definition: Area of poly/region in square coverage units
Attribute_Definition_Source: Computed
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Positive real numbers
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: PERIMETER
Attribute_Definition: Perimeter of poly/region in coverage units
Attribute_Definition_Source: Computed
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Positive real numbers
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: US48CTY#
Attribute_Definition: Internal feature number
Attribute_Definition_Source: Computed
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Sequential unique positive integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: US48CTY-ID
Attribute_Definition: User-assigned feature number
Attribute_Definition_Source: User-defined
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value: Integer
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: CTY
Attribute_Definition: County FIPS code
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: ST
Attribute_Definition: State FIPS code
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: FIPS
Attribute_Definition: County FIPS Code
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: NAME
Attribute_Definition: County Name
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: ST_NAME
Attribute_Definition: State Postal Code
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Attribute:
Attribute_Label: ST_CTY
Attribute_Definition: State and County name
Attribute_Definition_Source:
Attribute_Domain_Values
Enumerated_Domain
Enumerated_Domain_Value:
Enumerated_Domain_Value_Definition
Enumerated_Domain_Value_Definition_Source:
Overview_Description
Entity_and_Attribute_Overview
Attributes include county FIPS codes and names.
Entity_and_Attribute_Detail_Citation: Not Available
Metadata_Date: 19020207
Metadata_Contact:
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608
Metadata_Time_Convention: Local Time
Metadata_Security_Information:
Metadata_Security_Classification_System: None
Metadata_Security_Classification: UNCLASSIFIED
Metadata_Security_Handling_Description: None
Last modified: 02-02-07.15:22:43.Thu
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