US_MilitaryInstallations_TIGER

File Geodatabase Feature Class

Thumbnail Not Available

Tags
US, Military


Summary

This layer contains Military installations in the US. This polygon file is intended for medium to large scale thematic mapping and analysis.

Description

            

The spatial data were obtained from the US Census Bureau and are current as of 2010. The US Military installations were downloaded from the nationwide US Military installations layer obtained from the US Census Bureau website. The attributes were modified to include name, area information, and identification information. The coordinate system of this data is WGS 1984.

In 2008, the Census Bureau obtained the inventory and boundaries of most military installations from the U.S. Department of Defense (DOD) for Air Force, Army, Marine, and Navy installations and from the U.S. Department of Homeland Security (DHS) for Coast Guard installations. In a few cases, the files supplied to the Census Bureau contained older, unverified information than that obtained from the DOD for Census 2000; in those cases the military installations in MTDB were reviewed, but not updated to match the files obtained in 2008.

Credits

Center for Geospatial Technology, Texas Tech University
US Census Bureau 

Use limitations

            

The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.

Extent

West  -176.810449    East  174.159238
North  68.880138    South  17.986331

Scale Range
Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

ArcGIS Metadata 

Topics and Keywords 

*Content type  Downloadable Data


Citation 

*Title US_MilitaryInstallations_TIGER


Presentation formats* digital map


Resource Details 

Dataset languages* English (UNITED STATES)


Spatial representation type* vector


*Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552


Credits
Center for Geospatial Technology, Texas Tech University
US Census Bureau 

ArcGIS item properties
*Name US_MilitaryInstallations_TIGER
*Location file://\\cgstdb\CGSTGeognet\Geognet\Geognet2014\USLayers2014\US_Military\USMilitary.gdb
*Access protocol Local Area Network

Extents 

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -176.810449
*East longitude 174.159238
*North latitude 68.880138
*South latitude 17.986331
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude -176.810449
*East longitude 174.159238
*South latitude 17.986331
*North latitude 68.880138
*Extent contains the resource Yes

Resource Constraints 

Constraints
Limitations of use
                  

The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.


Spatial Reference 

ArcGIS coordinate system
*Type Geographic
*Geographic coordinate reference GCS_WGS_1984
*Coordinate reference details
Geographic coordinate system
Well-known identifier 4326
X origin -400
Y origin -400
XY scale 999999999.99999988
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 8.983152841195215e-009
Z tolerance 0.001
M tolerance 0.001
High precision true
Left longitude -180
Latest well-known identifier 4326
Well-known text GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],METADATA["World",-180.0,-90.0,180.0,90.0,0.0,0.0174532925199433,0.0,1262],AUTHORITY["EPSG",4326]]

Reference system identifier
*Value 4326
*Codespace EPSG
*Version 8.2.6


Spatial Data Properties 

Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name US_MilitaryInstallations_TIGER
*Object type  composite
*Object count 711



ArcGIS Feature Class Properties
Feature class name US_MilitaryInstallations_TIGER
*Feature type Simple
*Geometry type Polygon
*Has topology FALSE
*Feature count 711
*Spatial index TRUE
*Linear referencing FALSE



Geoprocessing history 

Process
Process name
Date 2014-07-28 13:00:55
Tool location c:\program files (x86)\arcgis\desktop10.2\ArcToolbox\Toolboxes\Data Management Tools.tbx\CalculateField
Command issued
CalculateField US_MilitaryInstallations_TIGER AREA_SQMI (([ALAND]+ [AWATER])/1000000)*.386120 VB #
Include in lineage when exporting metadata No


Distribution 

Distribution format
*Name File Geodatabase Feature Class


Fields 

Details for object US_MilitaryInstallations_TIGER 
*Type Feature Class
*Row count 711
Definition
Military Installation National

Definition source
U.S. Census Bureau



Field OBJECTID
 
*Alias OBJECTID
*Data type OID
*Width 4
*Precision 0
*Scale 0
*Field description
Internal feature number.

*Description source
Esri

*Description of values
Sequential unique whole numbers that are automatically generated.





Field Shape
 
*Alias Shape
*Data type Geometry
*Width 0
*Precision 0
*Scale 0
*Field description
Feature geometry.

*Description source
Esri

*Description of values
Coordinates defining the features.





Field AREAID
 
*Alias AREAID
*Data type String
*Width 22
*Precision 0
*Scale 0
Field description
Area landmark identifier

Description source
U.S. Census Bureau

Description of values
data are unavailable





Field NAME
 
*Alias NAME
*Data type String
*Width 100
*Precision 0
*Scale 0




Field AREA_SQMI
 
*Alias AREA_SQMI
*Data type Single
*Width 4
*Precision 0
*Scale 0




Field Shape_Length
 
*Alias Shape_Length
*Data type Double
*Width 8
*Precision 0
*Scale 0
*Field description
Length of feature in internal units.

*Description source
Esri

*Description of values
Positive real numbers that are automatically generated.





Field Shape_Area
 
*Alias Shape_Area
*Data type Double
*Width 8
*Precision 0
*Scale 0
*Field description
Area of feature in internal units squared.

*Description source
Esri

*Description of values
Positive real numbers that are automatically generated.







Metadata Details 

*Metadata language English (UNITED STATES)


Scope of the data described by the metadata* dataset
Scope name* dataset


*Last update 2015-01-05


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Standard or profile used to edit metadata ItemDescription


Created in ArcGIS for the item 2014-07-28 12:52:24
Last modified in ArcGIS for the item 2015-01-05 10:51:01


Automatic updates
Have been performed Yes
Last update 2015-01-05 10:51:01


FGDC Metadata (read-only) 

Identification 

Citation
Citation Information
OriginatorU.S. Department of Commerce, U.S. Census Bureau, Geography Division
Publication Date2010
Title
US_MilitaryInstallations_TIGER
Edition2010
Geospatial Data Presentation Formvector digital data
Online Linkagehttp://www.census.gov/geo/www/tiger

Description
Abstract
                            The spatial data were obtained from the US Census Bureau and are current as of 2010. The US Military installations were downloaded from the nationwide US Military installations layer obtained from the US Census Bureau website. The attributes were modified to include name, area information, and identification information. The coordinate system of this data is WGS 1984.In 2008, the Census Bureau obtained the inventory and boundaries of most military installations from the U.S. Department of Defense (DOD) for Air Force, Army, Marine, and Navy installations and from the U.S. Department of Homeland Security (DHS) for Coast Guard installations. In a few cases, the files supplied to the Census Bureau contained older, unverified information than that obtained from the DOD for Census 2000; in those cases the military installations in MTDB were reviewed, but not updated to match the files obtained in 2008.
                          
Purpose
                            This layer contains Military installations in the US. This polygon file is intended for medium to large scale thematic mapping and analysis.
                          
Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date2010-01
Ending Date2010-07
Currentness Reference
                            Publication Date
                          
Status
ProgressComplete
Maintenance and Update FrequencyTIGER/Line Shapefiles are extracted from the Census MAF/TIGER database. No changes or updates will be made to this version of the TIGER/Line Shapefiles. Future releases of TIGER/Line Shapefiles will reflect updates made to the Census MAF/TIGER database.

Spatial Domain
Bounding Coordinates
West Bounding Coordinate-179.231086
East Bounding Coordinate179.859681
North Bounding Coordinate71.441059
South Bounding Coordinate17.831509

Keywords
Theme
Theme Keyword ThesaurusISO 19115 Topic Categories
Theme Keywordboundaries

Theme
Theme Keyword ThesaurusNone
Theme KeywordNation
Theme KeywordPolygon

Place
Place Keyword ThesaurusINCITS.38-200x (R2004),INCITS.31-200x (R2007),INCITS.454-200x,INCITS 455-200x,INCITS 446-2008
Place KeywordUnited States
Place KeywordU.S.

Access Constraints
                        None
                      
Use Constraints
                        The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau.  These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source.
The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.
                      
Point of Contact
Contact Information
Contact Organization Primary
Contact OrganizationU.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address
Address TypeMailing address
Address4600 Silver Hill Road, Stop 7400
CityWashington
State or ProvinceDC
Postal Code20233-7400
CountryUnited States

Contact Voice Telephone301-763-1128
Contact Facsimile Telephone301-763-4710
Contact Electronic Mail Addressgeo.tiger@census.gov


Data Quality 

Attribute Accuracy
Attribute Accuracy Report
                            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.
                          
Logical Consistency Report
                        The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles.  Segments making up the outer and inner boundaries of a polygon tie end-to-end to completely enclose the area.  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 MAF/TIGER database.  Standard geographic codes, such as FIPS codes for states, counties, municipalities, county subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding spatial entities.  The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation of the original Census MAF/TIGER database files.  Most of the codes for geographic entities except states, counties, urban areas, Core Based Statistical Areas (CBSAs), American Indian Areas (AIAs), and congressional districts were provided to the Census Bureau by the USGS, the agency responsible for maintaining FIPS 55.  Feature attribute information has been examined but has not been fully tested for consistency.
For the TIGER/Line Shapefiles, the Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the shapefile attribute table.  For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component of the multi-polygon feature.  TIGER/Line Shapefile multi-polygons are an exception to the G-polygon object type classification.  Therefore, when multi-polygons exist in a shapefile, the object count will be less than the actual number of G-polygons.
                      
Completeness Report
                        Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line Shapefiles were created.
                      
Lineage
Source Information
Source Citation
Citation Information
OriginatorU.S. Department of Commerce, U.S. Census Bureau, Geography Division
Publication DateUnpublished material
Title
Census MAF/TIGER database

Type of Source Mediaonline
Source Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date2010-01
Ending Date2010-07
Source Currentness Reference
Publication Date
Source Citation Abbreviation
MAF/TIGER
Source Contribution
                                The selected geographic and cartographic information (line segments) are derived from the U.S. Census Bureau's Master Address File Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database.
                              
Process Step
Process Description
                                TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity.  Census MAF/TIGER data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes for line, polygon, or landmark geographic data. 
                              
Source Used Citation Abbreviation
Census MAF/TIGER
Process Date2010


Spatial Reference 

Horizontal Coordinate System Definition
Geographic
Latitude Resolution0.000458
Longitude Resolution0.000458
Geographic Coordinate UnitsDecimal degrees

Geodetic Model
Horizontal Datum NameNorth American Datum of 1983 in the 48 contiguous states, the District of Columbia, Alaska, Hawaii, Puerto Rico, the Virgin Islands of the United States, and the Pacific Island Areas.
Ellipsoid NameGeodetic Reference System 80
Semi-major Axis6378137
Denominator of Flattening Ratio298257

Entities and Attributes 

Distribution Information 

Distributor
Contact Information
Contact Organization Primary
Contact OrganizationU.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address
Address TypeMailing address
Address4600 Silver Hill Road, Stop 7400
CityWashington
State or ProvinceDC
Postal Code20233-7400
CountryUnited States

Contact Voice Telephone301-763-1128
Contact Facsimile Telephone301-763-4710
Contact Electronic Mail Addressgeo.tiger@census.gov

Distribution Liability
                        No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data.  The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files.  The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
                      
Standard Order Process
Digital Form
Digital Transfer Information
Format NameTGRSHP (compressed)
File Decompression TechniquePK-ZIP, version 1.93 A or higher

Digital Transfer Option
Online Option
Computer Contact Information
Network Address
Network Resource Namehttp://www.census.gov/geo/www/tiger

Offline Option
Offline MediaDVD-ROM (Only if offered offline)
Recording FormatISO 9660

FeesThe online copy of the TIGER/Line files may be accessed without charge.
Ordering Instructions
                            To obtain more information about ordering TIGER/Line shapefiles visit http://www.census.gov/geo/www/tiger 
                          


Technical Prerequisites
The TIGER/Line shapefiles contain geographic data only and do not include display mapping software or statistical data. For information on how to use the TIGER/Line shapefile data with specific software package users shall contact the company that produced the software.


Metadata Reference 

Metadata Date2010-05-07
Metadata Contact
Contact Information
Contact Organization Primary
Contact OrganizationU.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact Address
Address TypeMailing address
Address4600 Silver Hill Road, Stop 7400
CityWashington
State or ProvinceDC
Postal Code20233-7400
CountryUnited States

Contact Voice Telephone301-763-1128
Contact Facsimile Telephone301-763-4710
Contact Electronic Mail Addressgeo.tiger@census.gov

Metadata Standard NameFGDC Content Standards for Digital Geospatial Metadata
Metadata Standard VersionFGDC-STD-001-1998