Cngrss11

Identification Information

Citation Information

Originator	Maine Office of Geographic Information Systems (MEGIS)
Publication Date	20111011
Publication Time	Unknown
Title	Cngrss11
Geospatial Data Presentation Form	vector digital data
Series Information
Publication Information
Online Linkage	http://www.maine.gov/megis/catalog/

Abstract

Dataset contains US Congressional Districts for Maine as per LD1590, 125th legislature, enacted 9-28-2011

Purpose

Published as a Maine GIS dataset to provide a digital copy of Maine's newly apportioned electoral districts to all Maine GIS users

Supplemental Information

For additional information on Maine electoral districts see the website of the Maine Department of Secretary of State, Bureau of Corporations, Elections, and Commissions, http://www.maine.gov/sos/cec/

Time Period of Content

Calendar Date	20111005
Currentness Reference	publication date

Status

Progress	Complete
Maintenance and Update Frequency	None planned

Bounding Coordinates

West Bounding Coordinate	-71.166757
East Bounding Coordinate	-66.845261
North Bounding Coordinate	47.460074
South Bounding Coordinate	42.968343

Keywords

Theme	boundaries, society (ISO Keyword Thesaurus)
Theme	state, Congressional District, Congress (Maine GIS Thesaurus-Theme)
Place	Maine (Maine GIS Keyword Thesaurus - Place)
Stratum	human dimensions (GCMD Parameter Keyword)

Access Constraints

none

Use Constraints

Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials.

Contact Organization

Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 174

City

Augusta

State or Province

Postal Code

04333-0174

Country

USA

Contact Voice Telephone

207 624-7700

Contact Facsimile Telephone

207 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Data Set Credit

Credit should always be given to the data source and/or originator when the data is transferred or printed.

Native Data Set Environment

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000

Attribute Accuracy Report

Attribute accuracy is expected to be very good

Logical Consistency Report

Spatial topology meets "Data Standards for Maine Geographic Information Systems", June 2002

Completeness Report

Data set is complete.

Horizontal Positional Accuracy Report

Approximate horizontal accuracy is 12 meters plus or minus 40 feet, assuming source data meets National Map Accuracy Standards.

Horizontal Positional Accuracy Value

Horizontal Positional Accuracy Explanation

Horizontal positional accuracy for this digital data is tested by visual comparison to the source with hard copy plots.

Citation Information

Originator	Maine Office of GIS
Publication Date	20110330
Title	Metwp24
Geospatial Data Presentation Form	vector digital data
Online Linkage	http://www.maine.gov/megis/catalog/

Source Scale Denominator

24000

Type of Source Media

vector data

Source Currentness Reference

publication date

Source Citation Abbreviation

Metwp24

Source Contribution

Maine Township Boundaries 1:24000

Process Description

A select query on the MEGIS dataset Metwp24 was implemented in order to select out the municipal polygons according to the newly adopted Congressional districts. A field was added named District and populated for District 1 and 2.These features were further selected out to contain only land features, leaving out the water and the 3-mile limit as it exists in the Metwp24 dataset along the coastal area. This remaining data was dissolved using the district field to create the two Congressional Districts polygons.

Source Used Citation Abbreviation

Metwp24

Process Date

20111004

Contact Organization

Maine Office of GIS

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station #174

City

Augusta

State or Province

Postal Code

04333

Country

USA

Contact Voice Telephone

207-624-7700

Contact Facsimile Telephone

207-287-3842

Process Description

Metadata imported.

Source Used Citation Abbreviation

U:\crypt83\metadata\fgdc\Congress_2011.xml

Process Date

20111012

Process Time

09311000

Cloud Cover

Direct Spatial Reference Method

Vector

SDTS Point and Vector Object Type

G-polygon

Point and Vector Object Count

Grid Coordinate System Name

Universal Transverse Mercator

UTM Zone Number

Scale Factor at Central Meridian

0.999600

Longitude of Central Meridian

-69.000000

Latitude of Projection Origin

0.000000

False Easting

500000.000000

False Northing

0.000000

Planar Coordinate Encoding Method

coordinate pair

Abscissa Resolution

0.000070

Ordinate Resolution

0.000070

Planar Distance Units

meters

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

Altitude Resolution

1.000000

Altitude Encoding Method

Explicit elevation coordinate included with horizontal coordinates

Entity Type Label

Congress_2011

Entity Type Definition

Congressional Districts for Maine 2011

Entity Type Definition Source

MEGIS

Attribute Label

OBJECTID

Attribute Definition

Internal feature number.

Attribute Definition Source

ESRI

Unrepresentable Domain

Sequential unique whole numbers that are automatically generated.

Beginning Date of Attribute Values

Attribute Label

SHAPE

Attribute Definition

Feature geometry.

Attribute Definition Source

ESRI

Unrepresentable Domain

Coordinates defining the features.

Beginning Date of Attribute Values

Attribute Label

District

Attribute Definition

District Number

Attribute Definition Source

MEGIS

Enumerated Domain Value

Enumerated Domain Value Definition

District 1

Enumerated Domain Value Definition Source

Maine State Legislature

Enumerated Domain Value

Enumerated Domain Value Definition

District 2

Enumerated Domain Value Definition Source

Maine State Legislature

Beginning Date of Attribute Values

Attribute Label

SHAPE_Length

Attribute Definition

Length of feature in internal units.

Attribute Definition Source

ESRI

Unrepresentable Domain

Positive real numbers that are automatically generated.

Beginning Date of Attribute Values

Attribute Label

SHAPE_Area

Attribute Definition

Area of feature in internal units squared.

Attribute Definition Source

ESRI

Unrepresentable Domain

Positive real numbers that are automatically generated.

Beginning Date of Attribute Values

Entity and Attribute Overview

The First District consists of the counties of Cumberland, Knox, Lincoln, Sagadahoc and York and the following municipalities within Kennebec County: Augusta, Chelsea, China, Farmingdale, Hallowell, Manchester, Pittston, Readfield, Vassalboro, Waterville, Windsor, Winslow and Winthrop.The Second District consists of the counties of Androscoggin, Aroostook, Franklin, Hancock, Oxford, Penobscot, Piscataquis, Somerset, Waldo and Washington and the following municipalities and areas within Kennebec County: Albion, Belgrade, Benton, Clinton, Fayette, Gardiner, Litchfield, Monmouth, Mount Vernon, Oakland, Randolph, Rome, Sidney, Vienna, Wayne, West Gardiner and Unity Township.

Entity and Attribute Detail Citation

LD1590, 125th legislature, enacted 9-28-2011

Entity and Attribute Overview

Entity and Attribute Detail Citation

LD1590, 125th legislature, enacted 9-28-2011

Contact Organization

Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 174

City

Augusta

State or Province

Postal Code

04333-0174

Country

USA

Contact Voice Telephone

207 624-7700

Contact Facsimile Telephone

207 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Resource Description

Downloadable Data

Distribution Liability

Users must assume responsibility to determine the usability of this data for their purposes. Although these data have been processed successfully on a computer system at the Maine Office of Geographic Information Systems, no warranty expressed or implied is made by MEGIS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Neither the Maine Office of Geographic Information Systems, nor any of its contributors, is liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets.

Format Name

ESRI Shapefile

Format Version Number

ARC Version 9.x

Format Specification

ArcGIS Shapefile Format

Format Information Content

MEGIS has all vector layers in the Maine GIS Internet Data Catalog available in ESRI's ArcGIS shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS, ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj, and metadata .xml, files associated with shapefiles.

File Decompression Technique

Data available from this website is in .zip compressed format. WinZip is a Windows based, PKZip-compatible compression utility. You will need a program like this to extract the data.

Transfer Size

0.000

Network Resource Name

http://megis.maine.gov/catalog/

[accinstr]

If you are not already a GIS user, free software for viewing these files is available from Environmental Systems Research Institute, Inc. (ESRI) - www.esri.com

Fees

Data may be downloaded from Maine GIS Internet Data Catalog at no charge.

Turnaround

Data is available for immediate download from the Maine GIS Internet Data Catalog.

Beginning Date

19970101

Beginning Time

unknown

Ending Date

Present

Ending Time

unknown

Contact Organization

Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 174

City

Augusta

State or Province

Postal Code

04333-0174

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Resource Description

Downloadable Data

Distribution Liability

Users must assume responsibility to determine the usability of this data for their purposes.

Format Name

ARCSDE

Format Version Number

ArcSDE 9.x

Format Information Content

Oracle 9i

Transfer Size

0.000

[accinstr]

Please contact the Maine Office of GIS (MEGIS) for access instructions.

Fees

Access is available through Maine's wide area network; WAN users may contact the Maine Office of Information Technology, Maine Office of Geographic Information Systems (MEGIS) for a login.

Metadata Reference Information

Metadata Date

20111011

Metadata Review Date

20111011

Metadata Contact

Contact Organization	Maine Office of Geographic Information Systems
Contact Person	REQUIRED: The person responsible for the metadata information.
Contact Position	GIS Coordinator
Address Type	mailing address
Address	State House Station 174
City	Augusta
State or Province	ME
Postal Code	04333-0174
Country	USA
Contact Voice Telephone	207 624-7700
Contact Facsimile Telephone	207 287-3842
Contact Electronic Mail Address	OIT.Customer-Support@maine.gov
Hours of Service	Monday through Friday 0800 - 1700 EST

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