DC Boundary

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Office of the Chief Technology Officer
Publication_Date: 20130704
Title:
DC Boundary
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publisher: DC GIS
Online_Linkage: http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=DCBndyPly&downloadTYPE=ESRI
Online_Linkage: http://dcatlas.dcgis.dc.gov/catalog/download.asp?downloadName=DCBndyPly&downloadTYPE=KMZ
Larger_Work_Citation:
Citation_Information:
Originator: DC GIS
Title:
DC Geographic Information System
Geospatial_Data_Presentation_Form: vector digital data
Description:
Abstract:
District of Columbia boundary. The dataset is a polygon representing the District of Columbia boundary, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology Officer (OCTO) and participating D.C. government agencies.

The boundary was identified from public records and heads-up digitized using a combination of the 1995 orthophotographs, planimetric roads features, and the USGS digital raster graphic quad sheets, and 1999 planimetrics for the Potomac River boundary.

All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.

METADATA CONTENT IS IN PROCESS OF VALIDATION AND SUBJECT TO CHANGE.
Purpose:
This data is used for the planning and management of Washington, D.C. by local government agencies.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20130704
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -77.119896
East_Bounding_Coordinate: -76.909016
North_Bounding_Coordinate: 38.995967
South_Bounding_Coordinate: 38.791582
Data_Set_G-Polygon:
Data_Set_G-Polygon_Outer_G-Ring:
G-Ring_Point:
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Political Jurisdiction
Theme_Keyword: Boundary
Theme_Keyword: boundary
Theme_Keyword: imageryBasemapsEarthCover
Theme_Keyword: Government Jurisdiction
Place:
Place_Keyword: Washington, D.C.
Place_Keyword: District of Columbia
Place_Keyword: DC
Place_Keyword: DC GIS
Place_Keyword: DCGIS
Use_Constraints:
Acknowledgment of the DC Geographic Information Systems Program (DC GIS).  The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a  particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address:
441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5:00 pm
Data_Set_Credit:
D.C. Office of Planning
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data believed to be complete and accurate as of the time period cited. Subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.
Logical_Consistency_Report:
In process of validation by source and/or responsible agency.
Completeness_Report:
Data believed to be complete and accurate, subject to change. Digital version compared with original source data for accuracy and completeness. In process of validation by source and/or responsible agency.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
In process of validation by source and/or responsible agency.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
N/A
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS
Title:
USGS 1:24,000 Digital raster graphic quad sheets
Source_Scale_Denominator: 24000
Type_of_Source_Media: digital
Source_Time_Period_of_Content:
Source_Currentness_Reference:
publication date
Source_Citation_Abbreviation:
USGS quads
Source_Contribution:
boundaries
Source_Information:
Source_Citation:
Citation_Information:
Originator: DC GIS
Title:
Planimetric water feature
Other_Citation_Details:
Potomac River forms one boundary of the District of Columbia
Source_Scale_Denominator: 1000
Type_of_Source_Media: coverage
Source_Citation_Abbreviation:
Planimetric water features
Source_Contribution:
boundary
Process_Step:
Process_Description:
The boundary was identified from public records and heads-up digitized using a combination of the 1995 orthophotographs, planimetric roads features, and the USGS digital raster graphic quad sheets, and 1999 planimetrics for the Potomac River boundary.

The DC boundary is defined by cornerstones and the far Potomac riverbank.  It has not been resurveyed since 1965.

The three corners were located on the USGS quads, and lines drawn to connect them. Those lines were intersected with the riverbank edge form the planimetric water feature. The resulting line coverage was then built as a polygon.

A base ArcInfo coverage of correct line work (snapbase.e00) for all DC data was developed after the final delivery of the planimetric street centerlines. The datasets were selected from the snapbase coverage, creating coincident geography with the other DC GIS datasets. When imported into the DC GIS geodatabase the coverages shift 0.01mm since the geodatabase supports only 11 digits of precision, not double precision (16 digits). The DC Boundary was part of this base dataset.

Planimetrics were created at a scale of 1:1,000. This means that a well defined feature falls within two feet of true position.

All DC GIS data is stored and exported in Maryland State Plane coordinates NAD 83 meters.
Process_Date: 20010806
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address:
441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5:00 pm
Process_Step:
Process_Description:
Updated population data for the 2010 census.
Process_Date: 20130704
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: OCTO
Process_Step:
Process_Description:
Metadata imported.
Source_Used_Citation_Abbreviation:
C:\temp\DCBndyPly.xml
Process_Date: 20130715
Process_Time: 15593200
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001000
Ordinate_Resolution: 0.001000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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:
Entity_Type:
Entity_Type_Label: DCBndyPly
Attribute:
Attribute_Label: Shape_Area
Attribute_Definition:
Area of feature in internal units squared.
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real 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: CITY_FIPS
Attribute_Definition:
City FIPS code
Attribute:
Attribute_Label: CITY_NAME
Attribute_Definition:
City name
Attribute:
Attribute_Label: STATE_FIPS
Attribute_Definition:
State FIPS code
Attribute:
Attribute_Label: STATE_NAME
Attribute_Definition:
State name
Attribute:
Attribute_Label: STATE_CITY
Attribute_Definition:
State and city name
Attribute:
Attribute_Label: TWO_OR_MOR
Attribute_Definition:
Two or more
Attribute:
Attribute_Label: WEB_URL
Attribute_Definition:
Web link url
Attribute:
Attribute_Label: AREAKM
Attribute_Definition:
Area in kilometers
Attribute_Domain_Values:
Attribute:
Attribute_Label: AREAMILES
Attribute_Definition:
Area in miles
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: AGE_0_4
Attribute_Definition:
Total Population Age 0 - 4
Attribute:
Attribute_Label: AGE_5_17
Attribute_Definition:
Total Population Age 5 - 17
Attribute:
Attribute_Label: AGE_18_24
Attribute_Definition:
Total Population Age 18 - 24
Attribute:
Attribute_Label: AGE_25_34
Attribute_Definition:
Total Population Age 25 - 34
Attribute:
Attribute_Label: AGE_35_44
Attribute_Definition:
Total Population Age 35 - 44
Attribute:
Attribute_Label: AGE_45_54
Attribute_Definition:
Total Population Age 45- 54
Attribute:
Attribute_Label: AGE_55_64
Attribute_Definition:
Total Population Age 55 - 64
Attribute:
Attribute_Label: AGE_65_
Attribute_Definition:
Total Population Age 65+
Attribute:
Attribute_Label: TOTAL_YOUT
Attribute_Definition:
Total youth population
Attribute:
Attribute_Label: WHITE
Attribute_Definition:
Total youth population - White
Attribute:
Attribute_Label: BLACK_AFRI
Attribute_Definition:
Total youth population - Black
Attribute:
Attribute_Label: AMER_INDIA
Attribute_Definition:
Total youth population - American Indian
Attribute:
Attribute_Label: ASIAN
Attribute_Definition:
Total youth population - Asian
Attribute:
Attribute_Label: HAWIAN_PAC
Attribute_Definition:
Total youth population - Hawaiian/Pacific Islander
Attribute:
Attribute_Label: HISPANIC
Attribute_Definition:
Total youth population - hispanic
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: CAPITAL
Attribute_Definition:
Capital
Attribute:
Attribute_Label: OTHER
Attribute_Definition:
Total youth population - other
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: POP
Attribute_Definition:
Length of feature in internal units.
Attribute_Definition_Source:
Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: SHAPE_LEN
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address:
441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5:00 pm
Contact Instructions:
dcgis@dc.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Acknowledgment of the DC Geographic Information Systems Program (DC GIS).  The District of Columbia Government makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranty of the accuracy or fitness for a  particular use, nor are any such warranties to be implied or inferred with respect to the information or data furnished herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.185
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Ordering_Instructions:
Most DC GIS datasets can be downloaded from "http://dcgis.dc.gov" on the data center page.  Orders can also be made by contacting OCTO GIS at "dcgis@dc.gov", especially for datasets not available for download.
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Metadata_Reference_Information:
Metadata_Date: 20130704
Metadata_Review_Date: 01/07/04
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: D.C. Office of the Chief Technology Officer
Contact_Person: GIS Data Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address:
441 4th St NW, Suite 930 South
City: Washington
State_or_Province: DC
Postal_Code: 20001
Country: USA
Contact_Facsimile_Telephone: (202) 727-5660
Contact_Electronic_Mail_Address: dcgis@dc.gov
Hours_of_Service: 8:30 am - 5:00 pm
Contact Instructions:
email
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None.
Metadata_Use_Constraints:
None.
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