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elecserv
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Maine Public Utilities Commission (MEPUC), Maine Office of Geographic Information Systems(MEGIS) (comp.)
Publication Date: 19990226
Publication Time: Unknown
Title: elecserv
Edition: V1.1
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Maine GIS
Issue Identification: SDE server; Internet Data Catalog
Publication Information:
Publication Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems
Other Citation Details: 1:100000
Online Linkage: http://megis.maine.gov/catalog/
Description:
Abstract:
ELECSERV contains the service areas of electric power distributors in Maine, mapped at an approximate 1:100,000 scale. Central Maine Power (CMP) is the originator of this data. The polygon item COMPANY contains the name of the power company affiliated with the service area. In 1998, MEGIS staff used data from Maine Public Utilities Commission to update the coverage and added the item DISTRICT to show districts in CMP and Bangor Hyro-Electric service areas. Data sources for the dataset vary in scale from 1:100,000 to smaller scales. Use of the data at scales greater than 1:100,000 is strongly discouraged. Service area and district boundaries are approximate and do not represent legal boundaries.
Purpose: To show the service areas of electric power distributors in Maine. Service area and district boundaries are approximate and do not represent legal boundaries.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1994
Beginning Time: Unknown
Ending Date: 5/22/1998
Ending Time: Unknown
Currentness Reference: source dates
Status:
Progress: Complete
Maintenance and Update Frequency: Unknown
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -71.00635
East Bounding Coordinate: -66.85005
North Bounding Coordinate: 47.43994
South Bounding Coordinate: 43.05768
Keywords:
Theme:
Theme Keyword Thesaurus: Maine GIS Thesaurus-Theme
Theme Keyword: power
Theme Keyword: infrastructure
Theme:
Theme Keyword Thesaurus: ISO Keyword Thesaurus
Theme Keyword: utilitiesCommunication
Place:
Place Keyword Thesaurus: Maine GIS Thesaurus-Place
Place Keyword: Maine
Place Keyword: United States
Stratum:
Stratum Keyword Thesaurus: GCMD Parameter Keyword
Stratum Keyword: human dimensions
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. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEPUC) Maine Public Utilities Commission
Contact Address:
Address Type: mailing and physical address
Address: 242 State Street SHS 18
City: Augusta
State or Province: ME
Postal Code: 04333-0018
Country: USA
Contact Voice Telephone: 207 287 3831
Contact Facsimile Telephone: 207 187 1039
Contact Electronic Mail Address: maine.puc@maine.gov
Hours of Service: 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: Maine Office of Information Technology (OIT) Oracle 9i, Maine Office of Geographic Information Systems (MEGIS), Maine GIS Internet Data Catalog http://megis.maine.gov/catalog/
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report: Attribute coding in this dataset was verified at MEGIS by visual check of company and district names against CMP maps.
Logical Consistency Report: Data set meets "Data Standards for Maine Geographic Information Systems, March 1990"
Completeness Report: Data set is complete. 465 polygons contain no labels.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Approximate horizontal accuracy is 51 meters, assuming source data meets National Map Accuracy Standards.
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 51
Horizontal Positional Accuracy Explanation: Compilation base data meets National Map Accuracy Standards for 1:100,000 scale.
Vertical Positional Accuracy:
Vertical Positional Accuracy Report: Not applicable
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Geological Survey (USGS)
Publication Date: 1985
Publication Time: Unknown
Title: (100kdlg) 1:100,000 scale Digital Line Graphs
Geospatial Data Presentation Form: map
Series Information:
Series Name: Digital Line Graphs (DLG)
Issue Identification: Intermediate DLG-3
Publication Information:
Publication Place: Reston VA
Publisher: U.S. Geological Survey
Other Citation Details:
Digital line graph (DLG) data are digital representations of cartographic information. DLGs of map features are converted to digital form from maps and related sources. Intermediate-scale DLG data are derived from USGS 1:100,000-scale 30- by 60-minute quadrangle maps. If these maps are not available, Bureau of Land Management planimetric maps at a scale of 1:100,000 are used. Intermediate-scale DLGs are sold in five categories: (1) Public Land Survey System; (2) boundaries; (3)
transportation; (4) hydrography; and (5) hypsography. All DLG data distributed by the USGS are DLG - Level 3 (DLG-3), which means the data contain a full range of attribute codes, have full topological structuring, and have passed certain quality-control checks. DLGs depict information about geographic features on or near the surface of the Earth, terrain, and political and administrative units. These data were collected as part of the National Mapping Program.
Online Linkage: ftp://edcftp.cr.usgs.gov/pub/data/DLG/100K/
Source Scale Denominator: 100000
Type of Source Media: digital tape media
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 1/1/1984
Beginning Time: Unknown
Ending Date: Present
Ending Time: Unknown
Source Currentness Reference: publication date
Source Citation Abbreviation: 100kdlg
Source Contribution: Coincident features were used from USGS 1:100,000 digital line graphs.
Process Step:
Process Description:
A digital file at what appears to be 1:100000 scale from CMP was converted to ARC/INFO at MEGIS to show service areas of electric power distributors in Maine. All lines and company designations were provided by CMP.
Process Date: 19940112
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Person: GIS Coordinator
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Process Step:
Process Description: The coverage was updated to include the sub-districts of Central Maine Power Co. and Bangor Hydro-Electric Co. Completed by 10/01/1998. Coincident features were used from the USGS 1:100,000 DLG data.
Source Used Citation Abbreviation: 100kdlg
Process Date: 19981001
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Person: GIS Coordinator
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Process Step:
Process Description:
The Maine Office of GIS completed the conversion of all final data layers from NAD27 to NAD83 in July 1999. All the data layers were converted using the ArcInfo (version 7.2.1) NADCON conversion and the "project" command. All data was copied to double precision, projected to NAD83, and then copied back to single precision. It was decided to keep the NAD27 quad structure instead of generating new quad boundaries from NAD83 coordinates - all indexes (quads) were projected to NAD83 by using the same process previously described. All MEGIS data libraries in ArcInfo Librarian were repopulated using the NAD83 indexes and data.
Process Date: 19990701
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Person: GIS Coordinator
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Cloud Cover: 0
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Area chain
Point and Vector Object Count: 1448
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: Universal Transverse Mercator 1983
Universal Transverse Mercator:
UTM Zone Number: 19
Transverse Mercator:
Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -69
Latitude of Projection Origin: 0
False Easting: 500000
False Northing: 0
Planar Coordinate Information:
Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:
Abscissa Resolution: 1
Ordinate Resolution: 1
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: ELECSERVPoly
Entity Type Definition: polygon feature class
Entity Type Definition Source: Environmental Systems Research Institute, Inc. (ESRI)
Attribute:
Attribute Label: COMPANY
Attribute Definition: name of the power company affiliated with the service area
Attribute:
Attribute Label: DISTRICT
Attribute Definition: name or number of the district within the company service area
Attribute:
Attribute Label: TAG
Attribute Definition: item used to select a single feature for labeling purposes
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: y
Enumerated Domain Value Definition: yes, use item for labeling
Enumerated Domain Value: n
Enumerated Domain Value Definition: Do not use item for labeling.
Detailed Description:
Entity Type:
Entity Type Label: ELECSERVArc
Entity Type Definition: arc feature class
Entity Type Definition Source: Environmental Systems Research Institute, Inc. (ESRI)
Attribute:
Attribute Label: LINES
Attribute Definition: source of arc
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 100k
Enumerated Domain Value Definition: USGS 1:100,000 data
Enumerated Domain Value: CMP
Enumerated Domain Value Definition: Central Maine Power
Enumerated Domain Value: closure
Enumerated Domain Value Definition: arbitrary line created for closure only
Overview Description:
Entity and Attribute Overview: ELECSERV contains the service areas of electric power distributors in Maine. The polygon item COMPANY contains the name of the power company affiliated with the service area.
Entity and Attribute Detail Citation:
The ArcView shapefile and ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: FID (feature identifier), Shape (feature geometry), OBJECTID and SHAPE_lengt. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Person: GIS Coordinator
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Resource Description: http://megis.maine.gov/catalog/
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.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ESRI Shapefile
Format Version Number: ARC Version 9.x
Format Specification: ArcView Shapefile Format
Format Information Content:
MEGIS has made all vector layers, in the Maine GIS Internet Data Catalog, available in ESRI's ArcView 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. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/.
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions:
These data are available to Internet browsers for download from the Maine GIS Internet Data Catalog - http://megis.maine.gov/catalog/
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. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/
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
See http://megis.maine.gov/links/ for a link to ArcExplorer 9.x .
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.
Technical Prerequisites:
If you are not already a GIS user, free software for viewing these files is available from Environmental Systems Research Institute, Inc. (ESRI) http://www.esri.com/
You may also see http://megis.maine.gov/links/ for a link to ArcExplorer 9.x
Available Time Period:
Time Period Information:
Range of Dates/Times:
Beginning Date: 5/8/1998
Beginning Time: Unknown
Ending Date: Present
Ending Time: Unknown
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Distribution Liability: Users must assume responsibility to determine the usability of this data for their purposes.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ARCSDE
Format Version Number: ArcSDE 9.x
Format Information Content: Oracle 9i
Digital Transfer Option:
Online Option:
Access Instructions: 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
Section Index
Metadata Date: 7/1/2000
Metadata Review Date: 1/14/2010
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Person: GIS Coordinator
Contact Position: GIS Coordinator
Contact Address:
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
Hours of Service: Monday through Friday 0800 - 1700 EST
Metadata Standard Name:
FGDC Content Standards for Digital Geospatial Metadata
Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Access Constraints: None
Metadata Use Constraints: None
SMMS Metadata report generated Thursday, 21/January/2010