Counties of U.S.

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: National Weather Service

Publication_Date: 1995

Title: Counties of U.S.

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Silver Spring, MD

Publisher: National Weather Service

Online_Linkage: <http://www.nws.noaa.gov/geodata/county/html/county.htm>

Larger_Work_Citation:

Citation_Information:

Originator:

Publication_Date:

Title:

Publication_Information:

Publication_Place:

Publisher:

Online_Linkage:

Description:

Abstract:

Counties and county equivalents of the United States including Alaska, Hawaii, American Samoa, Guam, The Marianas Islands, Midway, Puerto Rico and the U.S. Virgin Islands.

Purpose:

Used by the National Weather Service (NWS) for issuing wactches and warnings of severe weather.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1995

Ending_Date: 20010409

Currentness_Reference: Complete

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Continually

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -179.133163

East_Bounding_Coordinate: 179.788025

North_Bounding_Coordinate: 71.398094

South_Bounding_Coordinate: -14.604090

Keywords:

Theme:

Theme_Keyword_Thesaurus: ESRI Geography Network Thesaurus

Theme_Keyword: County

Theme_Keyword: Boundaries

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: CONUS

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Weather Service/OST

Contact_Person: Ira Graffman

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing

Address: SSMC2, 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Hours_of_Service:

Security_Information:

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

All attributes were verifed by the individual Weather Forecast Offices (WFOs) and QC passes by personell at NWS Headquarters. WFOs have input into the fe_area field, the Office of Climate, Water, and Weather Services have input into the CWA field.

Logical_Consistency_Report: ESRI feature type: Simple, Geometry: Polygon, Topology:

Completeness_Report:

The shoreline boundaries of the data is dependent on the shoreline edges of rivers and bays as delineated on a USGS DLG The edges or borders of the boundary might change as the natural land changes and WFOs request changes.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The data was created from USGS 1:2,000,000 DLG counties and assumed to have the same horizintal accuracy of that data set.

Vertical_Positional_Accuracy:

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1990

Title: Digital Line Graphs (DLG)

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geological Survey

Online_Linkage: &lt;<http://www.nationalatlas.gov/atlasftp.html>>;

Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1995

Title: Digital Line Graphs

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Source_Scale_Denominator: 2,000,000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: USGS DLG

Source_Contribution: Original boundaries and FIPS codes

Source_Information:

Source_Citation:

Citation_Information:

Originator:

National Atlas of the United States of America (U.S. Geological Survey)

Publication_Date: 200207

Title: Digital Line Graphs

Geospatial_Data_Presentation_Form: vector digital data

Other_Citation_Details: Updated Alaska Boundaries extracted

Online_Linkage: &lt;<http://nationalatlas.gov/atlasftp.html>>;

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 19990103

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: USGS DLG

Source_Contribution: Original boundaries and FIPS codes

Process_Step:

Process_Description:

A county shapefile was generated from the USGS DLG CD-ROM and reprojected into a NAD83 dataset. The counties in the shapefile were split as appropriate to create Public Forecast Zones and all county boundaries were retained. This shapefile is retained as an offline private shape file called a "master" file and it contains unique polygons of county, cwa and forecast zone data. All changes to counties, zones, CWAs are first made to this "master" file.

To create the counties data set, a copy of the master file is created and renamed and the polygons are "dissolved" on the FIPS code field and the lat/lon of the centroids are calculated.

Process_Date: 20020808

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ira Graffman

Contact_Organization: National Weather Service/OST

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: SSMC2, 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Process_Step:

Process_Description:

Updated Akaska county boundaries were subsetted into a separate shapefile. Old Alaska boundaries were deleted from main offline master shapefile and the two shapefiles were merged.

Source_Used_Citation_Abbreviation: DLG

Process_Date: 200311

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Ira Graffman

Contact_Organization: NWS/OST

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing and physical address

Address: 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20904

Country: USA

Contact_Voice_Telephone: 301 713 0763

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Spatial_Data_Organization_Information:

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: 3237

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000278

Longitude_Resolution: 0.000278

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Counties

Entity_Type_Definition: Shapefile Attribute Table

Entity_Type_Definition_Source: None

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: STATE

Attribute_Definition: State abbreviaion

Attribute_Domain_Values:

Unrepresentable_Domain: Character Field

Attribute:

Attribute_Label: CWA

Attribute_Definition: Identifer if the "Owning" CWA

Attribute_Domain_Values:

Unrepresentable_Domain: Character Field

Attribute:

Attribute_Label: COUNTYNAME

Attribute_Definition: Name of county

Attribute_Domain_Values:

Unrepresentable_Domain: Character Field

Attribute:

Attribute_Label: FIPS

Attribute_Definition: State-county FIPS code

Attribute_Domain_Values:

Unrepresentable_Domain: Numeric Field

Attribute:

Attribute_Label: TIME_ZONE

Attribute_Definition: Time zone abbreviation for county

Attribute_Domain_Values:

Unrepresentable_Domain: Numeric Field

Attribute:

Attribute_Label: FE_AREA

Attribute_Definition: Location identifier of location within state

Attribute:

Attribute_Label: LON

Attribute_Definition: Longitude of centroid of county

Attribute:

Attribute_Label: LAT

Attribute_Definition: Latitude of centroid of county

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Weather Service/OST

Contact_Person: Ira Graffman

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing

Address: SSMC2, 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Hours_of_Service:

Resource_Description: Downloadable Data

Distribution_Liability:

The information depicted in this GIS layer is the result of digital analyses performed on a database consisting of information from a variety of governmental and other credible sources. The accuracy of the information presented is limited to the collective accuracy of the database on the date of the analysis. The information is believed accurate and reasonable efforts have been made to ensure the accuracy of the data. However, the National Weather Service/OST expressly disclaims responsibility for damages or liability that may arise from use of this data. This product is the property of the National Weather Service/OST and its use is thereby restricted.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI Shapefile

Transfer_Size: 13.970

Digital_Transfer_Option:

Offline_Option:

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20071010

Metadata_Review_Date: 20020813

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: National Weather Service/OST

Contact_Person: Ira Graffman

Contact_Position: Physical Scientist

Contact_Address:

Address_Type: mailing

Address: SSMC2, 1325 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: USA

Contact_Voice_Telephone: 301 713 0763 x 104

Contact_Facsimile_Telephone: 301 713 9395

Contact_Electronic_Mail_Address: ira.graffman@noaa.gov

Hours_of_Service:

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: &lt;<http://www.esri.com/metadata/esriprof80.html>>;

Profile_Name: ESRI Metadata Profile

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile