Urban Bondaries

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: National Weather Service
Publication_Date: 1998
Title: Urban Bondaries
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: <http://www.nws.noaa.gov/geodata/catalog/national/html/urban.htm>
Description:
Abstract:
This data set contains Urban boundaries of the U.S. as defined by the U.S. Census Bureau as urban areas. This data set is updated as needed by National Weather Service's (NWS) Weather Forecast Offices (WFO).
Purpose:
The data set was developed in order to assist WFO forecasters to issue weather warnings and forecasts based upon selection of some localities by city limits (polygons) as opposed to point locations.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.647383
East_Bounding_Coordinate: -66.968767
North_Bounding_Coordinate: 49.002493
South_Bounding_Coordinate: 24.546288
Keywords:
Theme:
Theme_Keyword: Urban Areas
Theme_Keyword: Cities
Theme_Keyword: Towns
Place:
Place_Keyword: CONUS
Access_Constraints: None
Use_Constraints:
None. Users are cautioned that this data set, unlike the other data in the AWIPS Map Database Catalog (AMDC) which is at a resolution of 1:2,000,000, this data set is at a 1:100,000 resolution and cooresponding borders will not match.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ira Graffman
Contact_Organization: National Weather Service
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 x 104
Contact_Electronic_Mail_Address: ira.graffman@noaa.gov
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The Bureau of the Census states that the data are accurate against Federal information Processing Standards (FIPS), FIPS Publication 6-4, and FIPS-55 at the 100% level for the codes and base names. The remaining attribute information has been examined but has not been fully tested for accuracy. The NWS changes are accurate to the degree that the local offices use attribute information that is specific to them, this information is obtained from local, county or state sources.
Logical_Consistency_Report:
All polygons are tested for closure. The Census Bureau uses its internally developed Geographic Update System to enhance and modify spatial and attribute data in the Census TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, and places, are used when encoding patial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census TIGER database files. Most of the Codes themselves were provided to the Census Bureau by the USGS, the agency esponsible for maintaining FIPS 55. Feature attribute information has been examined but has not been fully tested for onsistency.

The NWS checks additions/changes for polygon overlaps, gaps and "slivers" using ArcView 3.x. Names for new areas are provided by the local WFO. Numbers are chosen to be unique.

Completeness_Report:
Data completeness of the original TIGER/Line files reflects the contents of the Census TIGER database at the time the TIGER/Line files for 1995. The data set is updated by NWS whenever it is determined by a WFO that a boundary has changed or a new area must be added.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Department of Commerce
Publication_Date: 1995
Title: Census TIGER database
Geospatial_Data_Presentation_Form: vector digital data
Source_Scale_Denominator: 100,000
Type_of_Source_Media: online shapefile
Source_Citation_Abbreviation: TIGER
Process_Step:
Process_Description:
Data was extracted from the original TIGER 95 data set on a per state basis. The FPL code was expanded to be one digit larger and an attempt was made to make the codes unique by incrementing the digit whenever another code was found to be equal. The state data sets were then merged into a single national dataset.
Source_Used_Citation_Abbreviation: TIGER 95
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ira Graffman
Contact_Organization: National Weather Service
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 x 104
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: 24238

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000458
Longitude_Resolution: 0.000458
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: ub12fe02
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: FPL
Attribute_Definition: "Unique" numeric identifier
Attribute:
Attribute_Label: FIPS
Attribute_Definition: State-County FIPS code in which the area exists
Attribute:
Attribute_Label: CWA
Attribute_Definition: WFO with responsibility for the area
Attribute:
Attribute_Label: NAME
Attribute_Definition: Name of place
Attribute:
Attribute_Label: STATE
Attribute_Definition: State in which place exists
Attribute:
Attribute_Label: LON
Attribute_Definition: Longitude of centroid of place
Attribute:
Attribute_Label: LAT
Attribute_Definition: Latitude of centroid of place

Distribution_Information:
Resource_Description: Downloadable Data
Distribution_Liability: None
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 52.854
Custom_Order_Process: None

Metadata_Reference_Information:
Metadata_Date: 20071018
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: National Weather Service
Contact_Person: Ira Graffman
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 x 104
Contact_Electronic_Mail_Address: ira.graffman@noaa.gov
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: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

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