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Surficial Geology

SDE Feature Class

Tags
dunes, sand and gravel, surficial deposits, alluvial, beach, bog, eolian, lacustrine, glaciomarine, glacial outwash, glacial fluvial, moraine, till, drift, imageryBaseMapsEarthCover, geoscientificInformation


Summary

This dataset was developed for use by MGS in cooperation with other entities. Its primary purpose is to provide a digital base map of surficial geologic units for Maine. Detailed design decisions and confirmation for the characterization of features will require additional field work.

Description

SURF contains statewide surficial geology map units for Maine at 1:250,000 scale. The Maine Geological Survey (MGS) developed the dataset which maps surficial geology map units from their Regional Surficial Geology maps published in 1987. The data for this coverage were digitized and coded from 1:250,000 scale mylars by the J.W. Sewall Co., in 1990, for the Maine Low-Level Radioactive Waste Authority. Some coding and edgematching errors exist. For a detailed description of the surficial unit types see "Surficial Geologic Map of Maine, 1985" available at MGS. The data were updated in 2006 to fix some coastal errors.

Credits

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

Use limitations

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

Extent

West  -71.166947    East  -66.850055
North  47.460104    South  43.057685

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 GISVIEW.MEGIS.Surf
Publication date 1999-07-01 00:00:00


Presentation formats* digital map


Citation Contacts 

Responsible party
Organization's name Maine Department of Conservation, Maine Geological Survey
Contact's role  originator


Contact information
Phone
Voice 207-287-3200

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressdacf@maine.gov



Resource Details 

Dataset languages  English (UNITED STATES)
Dataset character set  utf8 - 8 bit UCS Transfer Format


Status  completed
Spatial representation type* vector


*Processing environment Microsoft Windows Server 2003 Version 5.2 (Build 3790) Service Pack 2; Esri ArcGIS 10.1.1.3143


Credits
Credit should always be given to the data source and/or originator when the data is transferred or printed.
ArcGIS item properties
*Name GISVIEW.MEGIS.Surf
*Location Server=sql-gisview-prod.som.w2k.state.me.us; Service=sde:sqlserver:sql-gisview-prod.som.w2k.state.me.us,1633; Database=GISVIEW; User=MEGIS; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection

Extents 

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -71.166947
*East longitude -66.850055
*North latitude 47.460104
*South latitude 43.057685
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude 336616.054408
*East longitude 662101.101495
*South latitude 4769174.112606
*North latitude 5256295.835428
*Extent contains the resource Yes

Resource Points of Contact 

Point of contact
Organization's name Maine Department of Conservation, Maine Geological Survey
Contact's role  point of contact


Contact information
Phone
Voice 207-287-3200

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressdacf@maine.gov



Resource Maintenance 

Resource maintenance
Update frequency  not planned


Resource Constraints 

Constraints
Limitations of use
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

Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_19N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26919
X origin -5120899.9990586638
Y origin -9998099.9998352043
XY scale 7812.4999927240406
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.0020480000019073492
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 26919
Well-known text PROJCS["NAD_1983_UTM_Zone_19N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-69.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26919]]

Reference system identifier
*Value 26919
*Codespace EPSG
*Version 7.11.2


Spatial Data Properties 

Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name GISVIEW.MEGIS.Surf
*Object type  composite
*Object count 8178



ArcGIS Feature Class Properties
Feature class name GISVIEW.MEGIS.Surf
*Feature type Simple
*Geometry type Polygon
*Has topology FALSE
*Feature count 8178
*Spatial index TRUE
*Linear referencing FALSE



Distribution 

Distributor
Contact information
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  distributor


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country USA
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Available format
*Name SDE Feature Class


Transfer options
Online source
*Location Server=sql-gisview-prod.som.w2k.state.me.us; Service=sde:sqlserver:sql-gisview-prod.som.w2k.state.me.us,1633; Database=GISVIEW; User=MEGIS; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection
*Description  Downloadable Data



Fields 

Details for object GISVIEW.MEGIS.Surf 
*Type Feature Class
*Row count 8178
Definition
polygon feature class
Definition source
Environmental Systems Research Institute, Inc. (ESRI)


Field CODE
 
*Alias CODE
*Data type String
*Width 6
*Precision 0
*Scale 0




Field Code
 
*Alias DESCRIPTION
*Data type String
*Width 254
*Precision 0
*Scale 0
Field description
The unit code on the map
Description source
MGS


Field DESCRIPTION
 
*Alias MATERIALS
*Data type String
*Width 255
*Precision 0
*Scale 0




Field Description
 
*Alias MATERIALS2
*Data type String
*Width 255
*Precision 0
*Scale 0
Field description
Brief description of the unit
Description source
MGS


Field MATERIALS
 
*Alias OBJECTID
*Data type OID
*Width 4
*Precision 10
*Scale 0
*Field description
Internal feature number.
*Description source
Esri
*Description of values Sequential unique whole numbers that are automatically generated.




Field MATERIALS2
 
*Alias ORIGIN
*Data type String
*Width 255
*Precision 0
*Scale 0




Field Materials
 
*Alias ORIGIN2
*Data type String
*Width 255
*Precision 0
*Scale 0
Field description
Materials description of the unit from the map
Description source
MGS


Field Materials2
 
*Alias SHAPE.area
*Data type Double
*Width 0
*Precision 0
*Scale 0
Field description
Overflow for the MATERIALS field (if > 255 characters)
Description source
MGS


Field OBJECTID
 
*Alias SHAPE.len
*Data type Double
*Width 0
*Precision 0
*Scale 0
Field description
Internal feature number.
Description source
ESRI
Description of values Sequential unique whole numbers that are automatically generated.




Field ORIGIN
 
*Alias SHAPE
*Data type Geometry
*Width 4
*Precision 0
*Scale 0
*Field description
Feature geometry.
*Description source
Esri
*Description of values Coordinates defining the features.




Field ORIGIN2
 
*Alias TOPOGRAPHY
*Data type String
*Width 255
*Precision 0
*Scale 0




Field Origin
 
*Alias UNIT
*Data type String
*Width 255
*Precision 0
*Scale 0
Field description
Origin description of the unit from the map
Description source
MGS


Field Origin2
 
Field description
Overflow for the ORIGIN field (when > 255 characters)
Description source
MGS


Field SHAPE
 
Field description
Feature geometry.
Description source
ESRI
Description of values Coordinates defining the features.




Field SHAPE.AREA
 


Field SHAPE.LEN
 


Field Shape
 
Field description
Feature geometry.
Description source
ESRI
Description of values Coordinates defining the features.




Field TOPOGRAPHY
 


Field Topography
 
Field description
Topography description of the unit from the map
Description source
MGS


Field UNIT
 


Field Unit
 
Field description
Geologic Unit description from the map
Description source
MGS




Overview Description
Entity and Attribute Overview SURF contains surficial geology map units characterized by specific type in the item MINOR 1. Attribution also indicates whether features represent a significant source of sand or gravel, or potential water supply aquifer, although this dataset does not represent the most complete or up-to-date information these resources in Maine.


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.




Metadata Details 

*Metadata language English (UNITED STATES)
*Metadata character set  8859part1 - Latin alphabet No. 1


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


*Last update 2013-12-05


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


Created in ArcGIS for the item 2011-05-10 10:09:12
Last modified in ArcGIS for the item 2013-12-05 12:20:56


Automatic updates
Have been performed Yes
Last update 2013-12-05 12:17:26


Metadata Contacts 

Metadata contact
Organization's name Maine Department of Conservation, Maine Geological Survey
Contact's role  point of contact


Contact information
Phone
Voice 207-287-3200

Address
Type postal
Delivery point SHS 22
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressdacf@maine.gov



Thumbnail and Enclosures 

FGDC Metadata (read-only) 

Identification 

Citation
Citation Information
OriginatorMaine Geological Survey (MGS)
Publication Date1991-01-01
Title
GISVIEW.MEGIS.Surf
Geospatial Data Presentation Formvector digital data
Series Information
Series NameMaine GIS
Issue IdentificationSDE server; Internet Data Catalog
Publication Information
Publication PlaceAugusta ME
PublisherMaine Office of Geographic Information Systems (MEGIS)
Other Citation Details
1:250000
Online Linkagehttp://www.maine.gov/megis/catalog/

Description
Abstract
                            SURF contains statewide surficial geology map units for Maine at 1:250,000 scale. The Maine Geological Survey (MGS) developed the dataset which maps surficial geology map units from their Regional Surficial Geology maps published in 1987. The data for this coverage were digitized and coded from 1:250,000 scale mylars by the J.W. Sewall Co., in 1990, for the Maine Low-Level Radioactive Waste Authority. Some coding and edgematching errors exist. For a detailed description of the surficial unit types see "Surficial Geologic Map of Maine, 1985" available at MGS. The data were updated in 2006 to fix some coastal errors.
                          
Purpose
                            This dataset was developed for use by MGS in cooperation with other entities.  Its primary purpose is to provide a digital base map of surficial geologic units for Maine. Detailed design decisions and confirmation for the characterization of features will require additional field work.
                          
Time Period of Content
Time Period Information
Single Date/Time
Calendar Date1987
Time of Dayunknown
Currentness Reference
                            source date
                          
Status
ProgressComplete
Maintenance and Update FrequencyNone planned

Spatial Domain
Bounding Coordinates
West Bounding Coordinate-71.166947
East Bounding Coordinate-66.850055
North Bounding Coordinate47.460103
South Bounding Coordinate43.057685

Keywords
Theme
Theme Keyword ThesaurusMaine GIS Thesaurus-Theme
Theme Keyworddunes
Theme Keywordsand and gravel
Theme Keywordsurficial deposits
Theme Keywordalluvial
Theme Keywordbeach
Theme Keywordbog
Theme Keywordeolian
Theme Keywordlacustrine
Theme Keywordglaciomarine
Theme Keywordglacial outwash
Theme Keywordglacial fluvial
Theme Keywordmoraine
Theme Keywordtill
Theme Keyworddrift

Theme
Theme Keyword ThesaurusISO Keyword Thesaurus
Theme KeywordimageryBaseMapsEarthCover
Theme KeywordgeoscientificInformation

Place
Place Keyword ThesaurusMaine GIS Thesaurus-Place
Place KeywordMaine
Place KeywordUnited States

Stratum
Stratum Keyword ThesaurusGCMD Parameter Keyword
Stratum Keywordland surface

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. 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(MEDOCMGS) Maine Department of Conservation, Maine Geological Survey
Contact PersonDirector, Earth Resource Information
Contact Address
Address Typemailing address
Address22 State House Station
CityAugusta
State or ProvinceME
Postal Code04333-0022
CountryUNITED STATES

Contact Voice Telephone207 287 2801

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 2; ESRI ArcCatalog 9.1.0.722

Data Quality 

Attribute Accuracy
Attribute Accuracy Report
                            Some coding errors exist.
                          
Logical Consistency Report
                        Some edgematching errors and tile boundary remnants exist. The 250,000 scale coverage is distributed by 100K tiles.
                      
Completeness Report
                        The dataset is complete.
                      
Positional Accuracy
Horizontal Positional Accuracy
Horizontal Positional Accuracy Report
                                Approximate horizontal accuracy is 127 meters, assuming source data meets National Map Accuracy Standards.
                              
Quantitative Horizontal Positional Accuracy Assessment
Horizontal Positional Accuracy Value127
Horizontal Positional Accuracy Explanation
                                    Horizontal positional accuracy for this digital data is tested by visual comparison to the source with hard copy plots.
                                  
Lineage
Source Information
Source Citation
Citation Information
OriginatorMaine Geological Survey (MGS)
Publication Date1987
Title
(RGNLSURF) Regional Surficial Geology Maps
Geospatial Data Presentation Formatlas
Publication Information
Publication PlaceAugusta ME
PublisherMaine Geological Survey

Source Scale Denominator999999
Type of Source Mediapaper
Source Time Period of Content
Time Period Information
Single Date/Time
Calendar Date1987
Time of Dayunknown
Source Currentness Reference
publication date
Source Citation Abbreviation
rgnlsurf
Source Information
Source Citation
Citation Information
OriginatorMaine Geological Survey (MGS)
Publication Date1985
Title
(SURF) Surficial Geologic Map of Maine
Geospatial Data Presentation Formatlas
Publication Information
Publication PlaceAugusta ME
PublisherMaine Geological Survey
Other Citation Details
For a detailed description of the surficial unit types see this "Surficial Geologic Map of Maine, 1985" a hardcopy map available through Maine Geological Survey.

Source Scale Denominator250000
Type of Source Mediapaper
Source Time Period of Content
Time Period Information
Single Date/Time
Calendar Date1985
Time of DayUnknown
Source Currentness Reference
publication date
Source Citation Abbreviation
surf
Process Step
Process Description
                                The Maine Geological Survey developed this dataset of surficial geology map units from their Regional Surficial Geology maps published in 1987. The data for this coverage were digitized and coded from 1:250,000 scale mylars by the J.W. Sewall Co., in 1990 for the Maine Low-Level Radioactive Waste Authority. Some coding and edgematching errors exist. For a detailed description of the surficial unit types see "Surficial Geologic Map of Maine, 1985" available at MGS.
                              
Source Used Citation Abbreviation
rgnlsurf
Source Used Citation Abbreviation
surf
Process Date1990


Process Contact
Contact Information
Contact Organization Primary
Contact OrganizationJames W. Sewall Company
Contact Address
Address Typemailing and physical address
Address147 Center Street
CityOld Town
State or ProvinceME
Postal Code04468
CountryUNITED STATES

Contact Voice Telephone(207) 827-4456
Contact Facsimile Telephone(207) 827-3641

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 Date1999-07-01


Process Contact
Contact Information
Contact Organization Primary
Contact Organization(MEGIS) Maine Office of Geographic Information Systems
Contact PersonGIS Coordinator
Contact PositionGIS Coordinator
Contact Address
Address Typemailing address
AddressState House Station 174
CityAugusta
State or ProvinceME
Postal Code04333-0174
CountryUNITED STATES

Contact Voice Telephone207 624-7700
Contact Facsimile Telephone207 287-3842
Hours of ServiceMonday through Friday 0800 - 1700 EST

Process Step
Process Description
                                UNIT, MATERIALS, TOPOGRAPHY, and ORIGIN fields were added by typing in the map legend descriptions in an Access database and joining it to the SURF layer.
                              
Process DateOct 2006


Process Step
Process Description
                                Metadata imported.
                              
Source Used Citation Abbreviation
U:\projects\metadata\updated\datasets\surf.xml


Process Step
Process Description
                                Dataset copied.
                              
Source Used Citation Abbreviation
Server=gisdatabase; Service=esri_vector; User=sdeuser; Version=SDE.DEFAULT
Process Date2011-05-10
Process Time10:09:12


Cloud Cover0


Spatial Reference 

Horizontal Coordinate System Definition
Planar
Planar Coordinate Information
Planar Coordinate Encoding MethodCoordinate Pair
Coordinate Representation
Abscissa Resolution1
Ordinate Resolution1
Planar Distance Unitsm

Geodetic Model
Horizontal Datum NameNorth American Datum of 1983
Ellipsoid NameGeodetic Reference System 80
Semi-major Axis6378137
Denominator of Flattening Ratio298.257

Vertical Coordinate System Definition
Altitude System Definition
Altitude Resolution1.000000
Altitude Encoding MethodExplicit elevation coordinate included with horizontal coordinates

Entities and Attributes 

Detailed Description
Entity Type
Entity Type LabelSurf
Entity Type Definition
polygon feature class
Entity Type Definition SourceEnvironmental Systems Research Institute, Inc. (ESRI)

Attribute
Attribute LabelCODE

Attribute
Attribute LabelCode
Attribute Definition
The unit code on the map
Attribute Definition SourceMGS

Attribute
Attribute LabelDESCRIPTION

Attribute
Attribute LabelDescription
Attribute Definition
Brief description of the unit
Attribute Definition SourceMGS

Attribute
Attribute LabelMATERIALS
Attribute Definition
Internal feature number.
Attribute Definition SourceEsri
Attribute Domain Values
Unrepresentable Domain
Sequential unique whole numbers that are automatically generated.

Attribute
Attribute LabelMATERIALS2

Attribute
Attribute LabelMaterials
Attribute Definition
Materials description of the unit from the map
Attribute Definition SourceMGS

Attribute
Attribute LabelMaterials2
Attribute Definition
Overflow for the MATERIALS field (if > 255 characters)
Attribute Definition SourceMGS

Attribute
Attribute LabelOBJECTID
Attribute Definition
Internal feature number.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Sequential unique whole numbers that are automatically generated.

Attribute
Attribute LabelORIGIN
Attribute Definition
Feature geometry.
Attribute Definition SourceEsri
Attribute Domain Values
Unrepresentable Domain
Coordinates defining the features.

Attribute
Attribute LabelORIGIN2

Attribute
Attribute LabelOrigin
Attribute Definition
Origin description of the unit from the map
Attribute Definition SourceMGS

Attribute
Attribute LabelOrigin2
Attribute Definition
Overflow for the ORIGIN field (when > 255 characters)
Attribute Definition SourceMGS

Attribute
Attribute LabelSHAPE
Attribute Definition
Feature geometry.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Coordinates defining the features.

Attribute
Attribute LabelSHAPE.AREA

Attribute
Attribute LabelSHAPE.LEN

Attribute
Attribute LabelShape
Attribute Definition
Feature geometry.
Attribute Definition SourceESRI
Attribute Domain Values
Unrepresentable Domain
Coordinates defining the features.

Attribute
Attribute LabelTOPOGRAPHY

Attribute
Attribute LabelTopography
Attribute Definition
Topography description of the unit from the map
Attribute Definition SourceMGS

Attribute
Attribute LabelUNIT

Attribute
Attribute LabelUnit
Attribute Definition
Geologic Unit description from the map
Attribute Definition SourceMGS

Overview Description
Entity and Attribute Overview
                            SURF contains surficial geology map units characterized by specific type in the item MINOR 1. Attribution also indicates whether features represent a significant source of sand or gravel, or potential water supply aquifer, although this dataset does not represent the most complete or up-to-date information these resources in Maine.
                          
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 1 

Distributor
Contact Information
Contact Organization Primary
Contact Organization(MEGIS) Maine Office of Geographic Information Systems
Contact PersonGIS Coordinator
Contact PositionGIS Coordinator
Contact Address
Address Typemailing address
AddressState House Station 174
CityAugusta
State or ProvinceME
Postal Code04333-0174
CountryUNITED STATES

Contact Voice Telephone207 624-7700
Contact Facsimile Telephone207 287-3842
Hours of ServiceMonday through Friday 0800 - 1700 EST

Resource DescriptionDownloadable 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.
                      
Standard Order Process
Digital Form
Digital Transfer Information
Format NameESRI Shapefile
Format Version NumberARC 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 TechniqueData 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
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 .
                                      
FeesData may be downloaded from Maine GIS Internet Data Catalog at no charge.
TurnaroundData is available for immediate download from the Maine GIS Internet Data Catalog.


Distribution Information 2 

Distributor
Contact Information
Contact Organization Primary
Contact OrganizationMaine Office of Geographic Information Systems
Contact PositionGIS Coordinator
Contact Address
Address Typemailing address
AddressState House Station 174
CityAugusta
State or ProvinceME
Postal Code04333-0174
CountryUNITED STATES

Contact Voice Telephone(207) 624-7700
Contact Facsimile Telephone(207) 287-3842
Hours of ServiceMonday 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 NameARCSDE
Format Version NumberArcSDE 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.
                                      
FeesAccess 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 

Metadata Date2006-10-26
Metadata Review Date2010-01-20
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization(MEGIS) Maine Office of Geographic Information Systems
Contact PersonGIS Coordinator
Contact PositionGIS Coordinator
Contact Address
Address Typemailing address
AddressState House Station 174
CityAugusta
State or ProvinceME
Postal Code04333-0174
CountryUNITED STATES

Contact Voice Telephone207 624-7700
Contact Facsimile Telephone207 287-3842
Hours of ServiceMonday through Friday 0800 - 1700 EST

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


Metadata Access Constraintsnone
Metadata Use Constraints
none
Metadata Extensions
Online Linkagehttp://www.esri.com/metadata/esriprof80.html
Profile NameESRI Metadata Profile
Metadata Extensions
Online Linkagehttp://www.esri.com/metadata/esriprof80.html
Profile NameESRI Metadata Profile