ashab3

Citation:

Citation Information:

Originator: US Fish and Wildlife Service (USFWS), Gulf of Maine Coastal Program (GOMP)
Publication Date: 20060331
Title: ashab3
Geospatial Data Presentation Form: vector digital data
Series Information:

Series Name: Atlantic Salmon Habitat Survey
Issue Identification: Level 3

Publication Information:

Publication Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)

Other Citation Details: 1:24000
Online Linkage: http://megis.maine.gov/catalog/
Larger Work Citation:

Citation Information:

Originator: U.S. Fish and Wildlife Service (USFWS) - Gulf of Maine Coastal Program (GOMP)
Publication Date: Unpublished Material
Title: (USFWSMEASHS) Maine Atlantic Salmon Habitat Surveys
Geospatial Data Presentation Form: tabular digital data
Series Information:

Series Name: Maine Atlantic Salmon Habitat Survey
Issue Identification: multiple issue

Publication Information:

Publication Place: Falmouth ME
Publisher: U.S. Fish and Wildlife Service (USFWS) - Gulf of Maine Coastal Program (GOMP)

Other Citation Details: Trimble .ssf GPS files differentially corrected with Trimble Pathfinder Office software using University of Maine Community Base Station data.

Description:

Abstract:
ASHAB3 contains arcs representing important Atlantic Salmon habitat in Maine, suitable for mapping at 1:12,000 or smaller scale. This dataset was developed from field surveys conducted on the main stem and/or selected tributaries of the Aroostook, Dennys, Ducktrap, East Machias, Kennebec, Machias, Passagassawakeag, Penobscot, Pleasant, Presumpscot, Sheepscot, St. George, Tunk and Union Rivers in Maine by staff of the Maine Atlantic Salmon Commission and U.S. Fish and Wildlife Service. These surveys were conducted to identify important Atlantic salmon habitat including spawning and rearing areas. The majority of the survey data was collected using Trimble Pro, Pro-XL and GeoExplorer3 receivers and survey files were differentially corrected to provide 2-5 meter accuracy.
Surveys for some reaches were collected with minimal or no GPS control points and the attributes were overlaid on a stream centerline created using either a GPS-acquired line, a line derived from MEGIS/USGS 1:24,000 hydrography data, or a line drawn as a centerline based on MEGIS 1-meter Digital Orthophotography. The dataset includes information on habitat categories and areas, and an indication of spawning and rearing potential, as well as detailed attribute information concerning stream dimensions, substrates, vegetation, and other stream characteristics.

Purpose: This dataset is designed to be used in a variety of management and planning activities including fry stocking, developing production estimates and habitat protection efforts.

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 8/1/1983
Beginning Time: Unknown
Ending Date: 8/10/2005
Ending Time: Unknown

Currentness Reference: publication date

Status:

Progress: In work
Maintenance and Update Frequency: Annually

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -71.108594
East Bounding Coordinate: -67.159034
North Bounding Coordinate: 46.982379
South Bounding Coordinate: 43.660848

Keywords:

Theme:

Theme Keyword Thesaurus: ISO Keyword Thesaurus
Theme Keyword: biota
Theme Keyword: environment

Theme:

Theme Keyword Thesaurus: Maine GIS Thesaurus-Theme
Theme Keyword: Atlantic salmon
Theme Keyword: habitat survey
Theme Keyword: spawning habitat
Theme Keyword: rearing habitat

Place:

Place Keyword Thesaurus: Maine GIS Thesaurus-Place
Place Keyword: Maine
Place Keyword: United States

Stratum:

Stratum Keyword Thesaurus: GCMD Parameter Keyword
Stratum Keyword: biosphere
Stratum Keyword: hydrosphere

Access Constraints:
There are no restrictions on the access of this data. However, this coverage should not be redistributed without permission from the Data Source and/or the Automation Agency. Secondary distribution must have this documentation appended.
Use Constraints:
There are no restrictions on the use of this data. 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. The Maine Office of Geographic Information Systems (MEGIS) provides notice of updates and corrections directly to the Maine GIS Technical Group and Maine GIS Users, through the MEGISTECH and MEGISUSER list servers. To subscribe please contact MeGIS through the Maine Office of Information Technology (OIT) Customer Support Center (CSC) at (207) 624-7700. To request data correction in, or provide updates to Maine GIS data, please use the contact information contained in the metadata. 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 in consultation with the Maine GIS Executive Council.
Point of Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: (USFWASHS) US Fish and Wildlife Service, Gulf of Maine Program
Contact Person: Biologist

Contact Position: Biologist
Contact Address:

Address Type: mailing and physical address
Address: 4R Fundy Road
City: Falmouth
State or Province: ME
Postal Code: 04105
Country: USA

Contact Voice Telephone: (207) 781-8364
Contact Facsimile Telephone: (207) 781-8369
Contact Electronic Mail Address: FW5ES_GOMP@fws.gov
Hours of Service: Monday through Friday 0800 - 1700 EST

Data Set Credit: Credit should always be given to the Data source and/or the Automation Agency when the data is transferred or printed.
Native Data Set Environment:
(USFWASHS) Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722; Maine Office of Information Technology (OIT) Oracle 9i, Maine Office of Geographic Information Systems (MEGIS), Maine GIS SDE, SDEUSER, SDE.DEFAULT, Maine GIS Internet Data Catalog http://megis.maine.gov/catalog/

Attribute Accuracy:

Attribute Accuracy Report: The database was audited for data entry errors through a series of reviews that checked for inconsistencies. Survey data was collected using a data library that limited errors in the field.

Logical Consistency Report:
ASHAB3 has been built to LINE. Breaks in arcs of less than 5 meters may exist, for example: where a channel diverges around islands. Screen inspection of this coverage with 1:12000 Digital Orthophoto Quarter Quadrangles demonstrates a good fit with that base layer.
Completeness Report:
This dataset contains habitat data for portions of the Aroostook, Dennys, Ducktrap, East Machias, Kennebec, Machias, Passagassawakeag, Penobscot, Pleasant, Sheepscot, St. George, Tunk and Union River watersheds. The survey used sub-meter GPS receivers and other methods to map habitat breaks. There may be other tributaries in the watersheds that have not yet been surveyed and mapped.
Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report:
2 - 5 meters (with differential correction) for the Ducktrap, Machias, Passagassawakeag, Pleasant, Tunk, Union and portions of the Dennys, East Machias, Kennebec, Penobscot and Sheepscot Rivers (see Process Description below for exceptions). In general PDOP values for the GPS receivers were kept below 4.0 and Signal-to-Noise Ratio was greater than 6.0, resulting in sub-meter accuracy. During some parts of some surveys the PDOP mask was increased to values of greater than 4.0 due to poor signal reception. Base station files were acquired from the University of Maine Community Base Station. Accuracy is much more difficult to establish for the Aroostook, Presumpscot, St. George, Union and parts of the Dennys, East Machias, Kennebec, Penobscot and Sheepscot surveys as those surveys fit attribute information collected in the field with limited GPS control points onto a stream centerline of indeterminate accuracy. It is best to consider these surveys to be generally accurate within approximately 5 - 10 meters. In the case of the Narraguagus, only relative positional data existed and was fit to a stream centerline without any GPS control points, and thus, is the least accurate of the surveys.
Quantitative Horizontal Positional Accuracy Assessment:

Horizontal Positional Accuracy Value: 10
Horizontal Positional Accuracy Explanation: It is best to consider these surveys to be generally accurate within approximately 5 - 10 meters.

Lineage:

Source Information:

Source Citation:

Citation Information:

Originator: U.S. Fish and Wildlife Service (USFWS) - Gulf of Maine Coastal Program (GOMP)
Publication Date: Unpublished Material
Title: (USFWSMEASHS) Maine Atlantic Salmon Habitat Surveys
Geospatial Data Presentation Form: tabular digital data
Series Information:

Series Name: Maine Atlantic Salmon Habitat Survey
Issue Identification: multiple issue

Publication Information:

Publication Place: Falmouth ME
Publisher: U.S. Fish and Wildlife Service (USFWS) - Gulf of Maine Coastal Program (GOMP)

Other Citation Details: Trimble .ssf GPS files differentially corrected with Trimble Pathfinder Office software using University of Maine Community Base Station data.

Source Scale Denominator: 999999
Type of Source Media: paper and digital tabular data
Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 8/1/1983
Beginning Time: Unknown
Ending Date: 8/10/2005
Ending Time: Unknown

Source Currentness Reference: ground condition

Source Citation Abbreviation: usfwsmeashs
Source Contribution:
For GPS surveys, GPS files of points and lines were created in individual river surveys using Trimble Pro, Pro-XL and GeoExplorer3 GPS receivers to capture feature attribute data, including habitat dimensions. These data files were converted to ESRI shapefiles, combined together, edited, and audited for errors. In GPS-Overlay surveys, GPS files of points were created using Trimble GeoExplorer3 GPS receivers to represent a limited set of control points and attribute data. Feature attribute data, including habitat dimensions, were collected on paper in the field, entered to a Microsoft Access database and audited, and then overlaid onto a GIS stream centerline, using the GPS control points to improve the accuracy of the overlay process. Overlay surveys use paper maps and datasheets without any GPS controls, but rather, rely on alignment of landmarks noted in original surveys with current GIS data, including stream centerlines, hydrography, road crossings, USGS topographic map data, and MEGIS digital orthophotography.
Process Step:

Process Description:
Three different processes were used to create subsets of the habitat data. The attribute SurveyType identifies which process was followed for each line (habitat unit) in this dataset.
(1) The first process (SurveyType = 'GPS'), and that which provides the most accurate depiction of the data, comes from river surveys using sub-meter accuracy GPS units to gather data in the field. Discrete habitat units were delineated on the basis of one or more physical characteristics that separated them from adjacent habitat types. Habitat surveys were conducted during low-flow periods. For convenience, surveys were performed from upstream to downstream. Once a habitat unit was defined, appropriate attribute data were measured and recorded for the unit. Trimble Pro, Pro-XL and GeoExplorer3 GPS receivers were used to record positional and attribute information. Where possible, a PDOP mask was set at 4.0 to generate sub-meter accuracy. Some areas of the survey have higher PDOP values due to dense vegetation or satellite acquisition difficulties. Base station data was acquired from the University of Maine's Community Base Station and from Maine Technical Source's Community Base Station. GPS files were differentially corrected using Trimble Pathfinder Office software and exported to ESRI ArcInfo coverages or ArcView shapefiles. Data created in this way include: the mainstem of the Dennys River surveyed in 1994; the Cathance River, tributary to the Dennys River, surveyed in 2001; the Ducktrap River surveyed in 1996, 1998 and 1999; portions of the East Machias River surveyed in 1998, 1999, 2000 and 2001; portions of tributaries to the Kennebec River surveyed in 1999 and 2001; the Machias River and tributaries surveyed in 1994, 1995, 1997, 1998, 2000 and 2003; part of the mainstem of the Passagassawakeag River in 2002; portions of tributaries to the Penobscot River surveyed in 1999, 2001, 2002 and 2003; the Pleasant River surveyed in 1996, 1997 and 1998; portions of the Sheepscot River surveyed in 1997 and 1998; and Tunk Stream surveyed in 2002.

Process Step:

Process Description:
2) The second process (SurveyType = 'GPS-Overlay') created datasets in one of two ways to overlay habitat data on a stream centerline: a) Historic habitat surveys used standard transects (e.g., 200 and 600 feet) to measure and record habitat composition. A centerline of the subject stream was created using a Trimble Pro or Pro-XL GPS receiver, usually after the original survey, and the original survey data was overlaid on the centerline using ESRI's Dynamic Segmentation tools. Data created in this way include: portions of the East Machias surveyed in 1984; and the Narraguagus River surveyed in 1991, 1992, 1993 and 1998.
b) Recent habitat surveys collected control point locations with Trimble Pro-XL or GeoExplorer3 GPS receivers at selected major habitat breaks, and recorded attribute data separately on paper. The GPS points were later used to control how the attribute data was fit to a centerline of the river. These centerlines were generally acquired with respect to MEGIS 1996 1-meter digital orthophotography, and occasionally higher resolution MEGIS orthophotography where available. In certain cases where orthophotos were not available or sufficient to derive a centerline, MEGIS and USGS 1:24,000 scale hydrography data was used instead. Such surveys were conducted on the Aroostook mainstem and selected tributaries in 2001, 2002, 2003 and 2004; portions of the Kennebec mainstem and selected tributaries in 2001, 2002, 2003, 2004 and 2005; selected tributaries to the Penobscot in 2001, 2002, 2004 and 2005; portions of the mainstem of the Presumpscot River and a tributary in 2003, 2004 and 2005; the upper mainstem of the Sheepscot River in 2002; the St. George River in 2003; and the West Branch of the Union River in 2001.

Process Step:

Process Description:
3) The third process (SurveyType = 'Overlay') created datasets by using similar techniques to the 'GPS-Overlay' method mentioned above. a) Historic habitat surveys using a variety of transect lengths, sometimes fixed at 200 feet, and sometimes varied with habitat unit lengths, were used to measure and record habitat composition. This process used field surveys that collected an abbreviated set of attribute information, and then manually divided a stream centerline into habitat units to fit in relation to landmarks noted in the original surveys. The centerlines for these surveys were created using the best available orthophotography for the subject river. 1983 surveys of the Saco River and four tributaries were digitized with this method using a centerline based primarily on MEGIS 2-foot true color orthophotos from 2003, and 1985 Penobscot River mainstem surveys were digitized with reference to MEGIS 1-meter black and white orthophotos from 1996.
b) This process used field surveys that collected an abbreviated set of attribute information, and then used ESRI's Dynamic Segmentation tools to overlay the data onto a stream centerline. The stream centerlines were derived from the 1:24,000 scale MEGIS/USGS hydrography datasets. Data created in this way include: Venture Brook, tributary to the Dennys; Barrows Stream and Palmer Brook, tributaries to the East Machias; Penobscot tributaries, Felts Brook in 1999 and portions of Souadabscook Stream in 1998; and Sheepscot tributaries, Ben Brook, Choate Brook, Dyer River and Trout Brook in 1999.

Process Date: 2006
Process Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: (USFWASHS) US Fish and Wildlife Service, Gulf of Maine Program
Contact Person: Biologist

Contact Position: Biologist
Contact Address:

Address Type: mailing and physical address
Address: 4R Fundy Road
City: Falmouth
State or Province: ME
Postal Code: 04105
Country: USA

Contact Voice Telephone: (207) 781-8364
Contact Facsimile Telephone: (207) 781-8369
Contact Electronic Mail Address: FW5ES_GOMP@fws.gov
Hours of Service: Monday through Friday 0800 - 1700 EST

Cloud Cover: 0

Direct Spatial Reference Method: Vector
Point and Vector Object Information:

SDTS Terms Description:

SDTS Point and Vector Object Type: String
Point and Vector Object Count: 16845

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: 0.000512
Ordinate Resolution: 0.000512

Planar Distance Units: meters

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

Vertical Coordinate System Definition:

Altitude System Definition:

Altitude Resolution: 1.000000
Altitude Encoding Method: Explicit elevation coordinate included with horizontal coordinates

Detailed Description:

Entity Type:

Entity Type Label: ASHAB3
Entity Type Definition: arc feature class
Entity Type Definition Source: Environmental Systems Research Institute, Inc. (ESRI)

Attribute:

Attribute Label: DRAINAGE
Attribute Definition: name of the primary watershed in which the habitat unit is located
Attribute Definition Source: MASC
Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: HABCAT
Attribute Definition: broad habitat category
Attribute Definition Source: MASC
Attribute Domain Values:

Enumerated Domain:

Enumerated Domain Value: Flat
Enumerated Domain Value Definition: where HABTYPE = Deadwater, Pool, or Glide (See Habtype for description of Habtype = Deadwater, Pool, or Glide.)
Enumerated Domain Value: Falls
Enumerated Domain Value Definition: where HABTYPE = Falls (See Habtype for description of Habtype = Falls.)
Enumerated Domain Value: Riffle
Enumerated Domain Value Definition: where HABTYPE = Riffle (See Habtype for description of Habtype = Riffle, Low Gradient Riffle or High Gradient Riffle.)
Enumerated Domain Value: Run
Enumerated Domain Value Definition: where HABTYPE = Run (See Habtype for description of Habtype = Run or Run1.)

Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: JOINID
Attribute Definition: unique identifier
Attribute Definition Source: MASC
Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: REARING
Attribute Definition: all riffles and runs
Attribute Definition Source: MASC
Attribute Domain Values:

Enumerated Domain:

Enumerated Domain Value: Yes
Enumerated Domain Value Definition: Habitat unit has potential for rearing juvenile Atlantic Salmon.
Enumerated Domain Value: No
Enumerated Domain Value Definition: Habitat unit has no potential for rearing juvenile Atlantic Salmon based on the habitat surveys of record.

Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: SPAWNAREA
Attribute Definition:
This attribute estimates area within the habitat unit in square meters that is considered suitable for spawning. Defined by one of two methods: Spawning Patch Dimensions - if a single, small, discrete portion of the habitat unit was considered potentially useful for spawning, the dimensions of the patch were recorded (units coded as Habcat = "Flat" can be coded as spawning units); or Proportion of Habitat Unit - if multiple spawning patches were present, or a single, large spawning patch was identified such that obtaining dimensions of the patch was difficult, estimation of the proportion of the habitat unit potentially useful for spawning was made and applied to AREA to yield SPAWNAREA..
Attribute Definition Source: USFWS, MASC
Attribute Domain Values:

Range Domain:

Range Domain Minimum: 0
Range Domain Maximum: 54,447
Attribute Units of Measure: square meters

Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: SPAWNING
Attribute Definition:
The survey crew's assessment that usable spawning habitat is present. The primary characteristic considered is substrate. Flows and depths are considered secondarily. The survey crew assigns a percentage of the habitat unit that is suitable for spawning, or identifies one or more limited spawning patches.
Attribute Definition Source: USFWS, MASC
Attribute Domain Values:

Enumerated Domain:

Enumerated Domain Value: Yes
Enumerated Domain Value Definition:
The entire habitat unit is considered to have spawning potential though it may be limited spatially or qualitatively. Potential spawning area within a flatwater (Habcat = Flat) unit that constitutes more than 30 % of the unit area, mean the entire unit is coded as potential spawning habitat. Refer to the SpawnArea field to verify the amount of spawning habitat in a particular habitat unit.
Enumerated Domain Value: Limited
Enumerated Domain Value Definition:
The habitat unit is considered to have limited spawning potential. If the potential spawning area in a flatwater (HabCat = Flat) unit constitutes less than 30 % of the unit area, the entire unit is coded as limited spawning habitat. Refer to the SpawnArea field to verify the amount of spawning habitat in a particular habitat unit.
Enumerated Domain Value: No
Enumerated Domain Value Definition: No spawning potential was identified for this area in the field surveys of record.

Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: STREAM
Attribute Definition: The name of the stream as derived from the Maine Atlantic Salmon Commission's MaineSalmon database, and based primarily on names taken from USGS 1:24,000 topographic map data.
Attribute Definition Source: MASC
Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: SURVEYTYPE
Attribute Definition: type of survey conducted
Attribute Definition Source: USFWS
Attribute Domain Values:

Enumerated Domain:

Enumerated Domain Value: GPS
Enumerated Domain Value Definition: Spatial and detailed attribute information collected with GPS receivers.
Enumerated Domain Value: GPS-Overlay
Enumerated Domain Value Definition:
Historic salmon transect survey or recent simplified (fewer point locations collected; attribute data recorded elsewhere) GPS survey overlaid onto stream centerline in GIS, and with less accuracy than GPS surveys above.
Enumerated Domain Value: Overlay
Enumerated Domain Value Definition:
Least detailed attribute collection used for digitizing of historic paper surveys, or for certain branches that do not contain large amounts of salmon habitat. Attribute data with relative positions overlaid onto stream centerline from MEGIS orthophotography or MEGIS/USGS 1:24,000 hydrography data.
Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Attribute:

Attribute Label: YRSURVEY
Attribute Definition: year survey was completed
Attribute Definition Source: MASC
Attribute Domain Values:

Range Domain:

Range Domain Minimum: 1983
Range Domain Maximum: 2004

Beginning Date of Attribute Values: 1983
Ending Date of Attribute Values: 2005

Overview Description:

Entity and Attribute Overview:
ASHAB3 represents habitat units as lines, and includes attributes defining stream geometry, substrates, vegetation, habitat types, spawning and rearing areas, and other information describing habitat or stream conditions.
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.

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: (MEGIS) Maine Office of Geographic Information Systems

Contact Position: GIS Coordinator
Contact Address:

Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
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. 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:

Access Instructions:
These data are available to Internet browsers for download from the Maine GIS Internet Data 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). See http://megis.maine.gov/links/ for a link to ArcExplorer 9.x .
Digital Transfer Option:

Online Option:

Access Instructions: Where file size and Internet access permit, data requests can be made available via File Transfer Protocol (FTP).

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.

Standard Order Process:

Available Time Period:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1999
Ending Date: Present

Distributor:

Contact Information:

Contact Organization Primary:

Contact Organization: (MEGIS) Maine Office of Geographic Information Systems

Contact Position: GIS Coordinator
Contact Address:

Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
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 Date: 3/31/2006
Metadata Review Date: 9/25/2007
Metadata Future Review Date:
Metadata Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: (USFWASHS) US Fish and Wildlife Service, Gulf of Maine Program
Contact Person: Biologist

Contact Position: Biologist
Contact Address:

Address Type: mailing and physical address
Address: 4R Fundy Road
City: Falmouth
State or Province: ME
Postal Code: 04105
Country: USA

Contact Voice Telephone: (207) 781-8364
Contact Facsimile Telephone: (207) 781-8369
Contact Electronic Mail Address: FW5ES_GOMP@fws.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 Extensions:

Online Linkage: http://www.esri.com/metadata/esriprof80.html
Profile Name: ESRI Metadata Profile