urban_interface
Data format: Shapefile


File or table name: urban_interface


Coordinate system: Geographic


FGDC and ESRI Metadata:

Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.

Identification Information:


Citation:
Citation information:
Originators: Oak Ridge National Laboratory


*Title:
urban_interface
*File or table name: urban_interface


Publication date: 2001
Edition: LandScan 2001 Global Population Database
*Geospatial data presentation form: vector digital data



Description:
Abstract:
The Urban Interface layer describes ambient population as approximately 11- 100 persons per square kilometer.

Purpose:
Urban Interface layer was used in the development of coarse scale spatial data for wildland fire and fuel management.

Supplemental information:
The LandScan Global Population Project is a worldwide population database at 30" X 30" resolution for estimating ambient populations at risk. Best available census counts are distributed to cells based on probability coefficients which, in turn, are based on road proximity, slope, land cover, and nighttime lights. Implementation will proceed region by region to complete global coverage in approximately one year. Version 1.2 has been completed for the entire world. Verification and validation (V&V) studies have been conducted routinely for all regions and more extensively for portions of the Middle East and the Southwestern United States.

*Language of dataset: en


Time period of content:
Time period information:
Single date/time:
Calendar date: REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.

Currentness reference:
REQUIRED: The basis on which the time period of content information is determined.

Status:
Progress: In work
Maintenance and update frequency: As needed

Spatial domain:
Bounding coordinates:
*West bounding coordinate: -178.033875
*East bounding coordinate: -64.567261
*North bounding coordinate: 71.333671
*South bounding coordinate: 17.692026

Local bounding coordinates:
*Left bounding coordinate: -178.033875
*Right bounding coordinate: -64.567261
*Top bounding coordinate: 71.333671
*Bottom bounding coordinate: 17.692026

Keywords:
Theme:
Theme keywords: REQUIRED: Common-use word or phrase used to describe the subject of the data set.
Theme keyword thesaurus: REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.

Access constraints: These data are for noncommercial use only.
Use constraints:
No third party distribution of all, or parts, of the electronic files is authorized.

Data set credit:
Oak Ridge National Laboratory 
http://www.ornl.gov/gist/projects/LandScan/landscan_doc.htm#Best%20Available%20Population

*Native dataset format: Shapefile
*Native data set environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700


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Data Quality Information:


Lineage:
Process step:
Process description:
Dataset copied.

Source used citation abbreviation:
Server=rockys24; Service=port:5151; Database=sde; User=sde; Version=sde.DEFAULT


Process step:
Process description:
Dataset copied.

Source used citation abbreviation:
Server=sue7; Service=esri_sde; User=webgen; Version=SDE.DEFAULT


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Spatial Data Organization Information:


*Direct spatial Rreference method: Vector


Point and vector object information:
SDTS terms description:
*Name: urban_interface
*SDTS point and vector object type: G-polygon
*Point and vector object count: 138418

ESRI terms description:
*Name: urban_interface
*ESRI feature type: Simple
*ESRI feature geometry: Polygon
*ESRI topology: FALSE
*ESRI feature count: 138418
*Spatial index: FALSE
*Linear referencing: FALSE

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Spatial Reference Information:


Horizontal coordinate system definition:
Coordinate system name:
*Geographic coordinate system name: GCS_North_American_1927

Geographic:
*Latitude resolution: 0.000001
*Longitude resolution: 0.000001
*Geographic coordinate units: Decimal degrees

Geodetic model:
*Horizontal datum name: North American Datum of 1927
*Ellipsoid name: Clarke 1866
*Semi-major axis: 6378206.400000
*Denominator of flattening ratio: 294.978698

Vertical coordinate system definition:
Altitude system definition:
*Altitude resolution: 1.000000
*Altitude encoding method: Explicit elevation coordinate included with horizontal coordinates

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Entity and Attribute Information:


Detailed description:
*Name: urban_interface


Entity type:
*Entity type label: urban_interface
*Entity type type: Feature Class
*Entity type count: 138418

Attribute:
*Attribute label: FID
*Attribute alias: FID
*Attribute definition:
Internal feature number.
*Attribute definition source:
ESRI

*Attribute type: OID
*Attribute width: 4
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Sequential unique whole numbers that are automatically generated.


Attribute:
*Attribute label: Shape
*Attribute alias: Shape
*Attribute definition:
Feature geometry.
*Attribute definition source:
ESRI

*Attribute type: Geometry
*Attribute width: 0
*Attribute precision: 0
*Attribute scale: 0


Attribute domain values:
*Unrepresentable domain:
Coordinates defining the features.


Attribute:
*Attribute label: OBJECTID
*Attribute alias: OBJECTID


*Attribute type: Number
*Attribute width: 10


Attribute:
*Attribute label: AREA
*Attribute alias: AREA


*Attribute type: Number
*Attribute width: 19
*Attribute number of decimals: 8


Attribute:
*Attribute label: PERIMETER
*Attribute alias: PERIMETER


*Attribute type: Number
*Attribute width: 19
*Attribute number of decimals: 8


Attribute:
*Attribute label: URB_INT_
*Attribute alias: URB_INT_


*Attribute type: Number
*Attribute width: 10


Attribute:
*Attribute label: URB_INT_ID
*Attribute alias: URB_INT_ID
*Attribute definition:
Feature geometry.
*Attribute definition source:
ESRI

*Attribute type: Number
*Attribute width: 10


Attribute domain values:
*Unrepresentable domain:
Coordinates defining the features.


Attribute:
*Attribute label: GRID_CODE
*Attribute alias: GRID_CODE


*Attribute type: Number
*Attribute width: 10


Attribute:
*Attribute label: SHAPE_AREA
*Attribute alias: SHAPE_AREA
*Attribute definition:
Area of feature in internal units squared.
*Attribute definition source:
ESRI

*Attribute type: Float
*Attribute width: 19
*Attribute number of decimals: 11


Attribute domain values:
*Unrepresentable domain:
Positive real numbers that are automatically generated.


Attribute:
*Attribute label: SHAPE_LEN
*Attribute alias: SHAPE_LEN


*Attribute type: Float
*Attribute width: 19
*Attribute number of decimals: 11


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Distribution Information:


Resource description: Downloadable Data


Standard order process:
Digital form:
Digital transfer information:
*Transfer size: 53.405
*Dataset size: 53.405

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Metadata Reference Information:


*Metadata date: 20021216


*Language of metadata: en


Metadata contact:
Contact information:
Contact organization primary:
Contact person: REQUIRED: The person responsible for the metadata information.
Contact organization: REQUIRED: The organization responsible for the metadata information.

Contact address:
Address type: REQUIRED: The mailing and/or physical address for the organization or individual.
City: REQUIRED: The city of the address.
State or province: REQUIRED: The state or province of the address.
Postal code: REQUIRED: The ZIP or other postal code of the address.

Contact voice telephone: REQUIRED: The telephone number by which individuals can speak to the organization or individual.


*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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