METADATA FOR DIGITAL WETLANDS MAPS OF THE ST. REGIS WATERSHED

Report Date: 29-December-2000
Metadata Data Set Name: Digital Wetlands Map of the St. Regis Watershed

Identification Information
Citation:
Citation Information:
Originator: New York State Adirondack Park Agency
Originator: Daniel M. Spada, Project Director (compiler)
Publication Date: 20001229
Title: New York State Adirondack Park Watershed Boundaries in the St. Regis Drainage Basin
Edition: Version 1.0
Geospatial Data Presentation Form: map
Series Information:
Series Name: Watershed Scale Protection for Adirondack Wetlands
Issue Identification: Watershed Protection of the St. Lawrence River Watershed with Special Consideration to Large Wetlands and Large Landownership - Part I.
Publication Information:
Publication Place: Ray Brook, NY
Publisher: New York State Adirondack Park Agency

Description
Abstract: A set of 18 USGS 7.5' quadrangle-based wetland coverages was prepared for the St. Regis River watershed, primarily within the New York State Adirondack Park (Table 1) using PC Arc/Info 3.4D+ at the Remote Sensing Laboratory, Plattsburgh State University (RSL). Wetlands were delineated on 1:40000 color infrared NAPP transparencies, transferred to orthophoto overlays using an Image Interpretations Systems Stereo Zoom Transfer Scope, and either hand digitized or scanned into PC Arc/Info format. A digital file extracted from the watershed data layer defined the outer boundary of the mapped area. This wetlands database consists of both polygon and linear features labeled using National Wetlands Inventory conventions. The 18 individual quadrangle files were exported to the New York State, Executive Department, Adirondack Park Agency (NYS APA) running Arc/Info version 8.0. The final MAPJOINED study area polygon coverage comprised of the 18 quad coverages was called STREGWTLND.

Purpose: The wetlands database is part of a larger database designed to help evaluate watershed/wetland relationships and provide data for cumulative impact assessments. In addition, the St. Lawrence River Watershed projects (Parts I and II) seek to analyze several large wetland complexes. These projects also endeavor to assist large landowners identify management concerns. The outreach efforts to share the Agency's natural resource database will encourage resource appreciation and wise use, particularly in a regional context.

Supplemental Information: Line drawings for 18 quadrangle-based wetland coverages were scanned using an ANAtech Evolution scanner housed at the Adirondack Park Agency. Digital files were vectorized, transformed into the UTM coordinate system, edited, and attributed by the Remote Sensing Laboratory, Plattsburgh State University. Digital files were georeferenced into a digital quadrangle file containing four bounding tics using PC Arc/Info 3.4D+. Maximum allowable RMS was 0.003, snapdistance 20.0 meters, snaptype closest, weed tolerance 3.0 meters, and a fuzzy tolerance of 1.219 meters. Hard copies of the digital coverage showing arcs, dangle nodes, and label points were carefully checked against the line overlay for digitizing or scanning accuracy. Wetland labels were added as label components using a digitizer menu customized for this project. A label overlay was placed over the line drawing, and arc and wetland labels were assigned on the digitizer. Wetland label columns were concatenated into a unified wetland label using dBase IV. A hard copy of the wetland coverage was made showing NWI wetland labels and each label was checked against the label overlay. Wetland labels follow the conventions established by Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. FWS/OBS-79/31. Office of Biological Services, U.S. Fish and Wildlife Service. U.S. Department of the Interior, Washington, D.C. 103 pp. Some modifications to the conventions were made to accommodate this project and are noted in the final project report. Files were transported to the NYS APA as Arc/Info export files (no compression) compressed with WinZip on 100 MB Zip disks.

Time Period of Content
Time Period Information
Range of Dates/Times
Beginning Date: 19940514
Ending Date: 19970502
Currentness Reference: imagery date
Status
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain
Bounding Coordinates
West Bounding Coordinate: -74.8385
East Bounding Coordinate: -74.1507
North Bounding Coordinate: 44.7159
South Bounding Coordinate: 44.3113

Keywords
Theme
Theme Keyword Thesaurus: None
Theme Keyword: Wetlands
Theme Keyword: Vegetation
Theme Keyword: NWI cover types
Theme Keyword: Geographic Information System (GIS)
Theme Keyword: Arc/Info
Place
Place Keyword Thesaurus: Geographic Names Information System
Place Keyword: New York
Place Keyword: Adirondack Park
Place Keyword: Adirondack Mountains
Place Keyword: St. Regis River Drainage Basin
Place Keyword: St. Regis River
Stratum
Stratum Keyword Thesaurus: None
Temporal
Temporal Keyword Thesaurus: None
Temporal Keyword: Date of aerial photography: 1994-1997
Temporal Keyword: Date of orthophoto quadrangles: 1976-1994

Access Constraints: None
Use Constraints: These data may not be used for legal determinations. Please credit use of this data set to the New York State Adirondack Park Agency, Ray Brook, New York 12977. Please send a copy of any reports or papers in which these data were used or referenced to the above address, Attention, Nancy Heath Librarian.

Browse Graphic: none

Data Set Credit: Funding was provided by the US Environmental Protection Agency Office of Wetlands Protection; State Wetlands Protection Program; Project #CD 992441-01-0 to the New York State Adirondack Park Agency. Subcontractors for portions of the grant were the Remote Sensing Laboratory, Plattsburgh State University (RSL), the Adirondack Lakes Survey Corporation of NYS Department of Environmental Conservation (ALSC) and the Adirondack Nature Conservancy and Land Trust (ANCLT).

Security Information
Security Classification System: None
Security Classification: Unclassified
Security Handling Description: None

Native Data Set Environment: PC-Arc/Info, Arc/Info
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Data Quality Information
Attribute Accuracy
Attribute Accuracy Report: Attributes assigned to polygon features consist of unique User-Ids, quadrangle identification codes, and wetland labels. Linear attributes include a User-ID (to distinguish between quadrangle borders, the study area boundary, and wetland arcs), ARCVALUE to uniquely identify the quadrangle borders throughout the study area, and wetland labels. Polygon and linear wetland labels were derived from photointerpretation techniques. Wetland labels were entered by superimposing the orrthophoto label overlay upon a hard copy of the wetland coverage arcs and labels on a digitizing table. To minimize typographical errors, both polygon and linear wetland labels were entered utilizing a digitizer menu consisting of columns representing wetland label components. Label columns were concatenated in dBase IV to create a unified wetland cover type label. Hard copies of wetland coverages were printed and labels were individually checked against the orthophoto overlays. Arc User-IDs and ARCVALUE were visually checked on the computer screen for integrity and labeling accuracy.

Quantitative Attribute Accuracy Assessment
Attribute Accuracy Value: unknown
Attribute Accuracy Explanation: Polygon and linear wetland cover type labels were derived from photointerpretation techniques. All photo overlays were checked by an independent interpreter for missing wetlands, uplands delineated as wetland, incorrectly delineated polygons, missing wetland labels, and incorrect wetland labels. Photo overlays were directly compared to orthophoto overlays utilizing a Kail Reflecting Reducer/Enlarger. This process helped to verify the transfer of wetland cover type labels and to discover missing arcs. Digitized and scanned coverage hard copies were directly compared to orthophoto overlays to check for missing arcs. The process of digitally labeling the wetland coverages also helped to resolve some missing, incomplete, and nonsensical labels. A hard copy was made of each coverage and both arc and wetland labels were compared to the orthophoto overlays. Linear wetlands were color-coded to facilitate proofing. Finally, all wetland labels were printed in tabular form and proof-read to ensure both complete labeling of the coverage and logical label content.

Logical Consistency Report:
Polygons: All polygons were required to possess either a wetland or upland cover type (i.e., a SYSTEM entry and therefore a final NWILABEL entry were mandatory). During the labeling process, digital polygons were checked for the presence of a label point and incomplete polygons were repaired. All wetlands were digitized (or for scanned files, transformed) into a blank quadrangle file containing quadrangle boundaries and tics.
Arcs: Only linear wetlands arcs received a wetland label. Printouts were made color-coding linear wetlands to help discover those linear wetlands missing a label or those that were labeled improperly. Only linear wetlands were allowed to exhibit dangle nodes.
General: PC Arc/Info's DISSOLVE program was used to identify adjacent polygons inappropriately possessing the same wetland label, and to identify arcs that should have received a wetland label but did not.
Inter-coverage consistency: PC Arc/Info's EDGEMATCH routine was utilized to match arcs between coverages. Wetland labels along adjacent coverage edges were proofread using ArcView 3.1 and corrected in PC Arc/Info ArcEdit.

Completeness Report:
Extensive quality assurance/quality control measures were taken for all steps of database creation. All wetland labels were reviewed for conformance to National Wetlands Inventory standards. It is expected that because the derivation of data from photointerpretation techniques, uncorrectable errors and mistakes may be present. Identifiable mistakes will be corrected as needed. These wetland maps contain only those wetlands that were identifiable from aerial photographs.

Positional Accuracy
Horizontal Positional Accuracy
Horizontal Positional Accuracy Report: The outer arc of all individual quadrangle-based wetland files correspond to USGS 7.5' quadrangle boundaries. Wetlands were digitized or transformed (scanned files) into the quadrangle template with a UTM Zone 18 projection and metric coordinates. Horizontal positional accuracy has error potential from several different steps: photointerpretation, transfer to orthophotos, and digitizing techniques. Maximum allowable RMS error was 0.003 for each digitizing session. While great care was taken at every step, no formal quantitative accuracy assessment was conducted. An attempt was made in all mapping operations (delineation, transfer, digitizing) to have horizontal accuracy correct to plus or minus one pencil width (about 12 meters at 1:24000).
Vertical Positional Accuracy Report: No vertical coordinates are associated with this data set. Topographic displacements of air photo delineations were corrected to match USGS orthophoto quadrangles using an IIS Stereo Zoom Scope.

Source Information
Source Citation:
Originator: Northern Forest Lands Project, SUNY ESF (ed.)
Publication Date: 19910725
Title: Northern Forest Lands Quadrangle File (derived from the data set "NYTM Coordinates 11/22/89" purchased from NYSDOT - Mapping Services Bureau)
Type of Source Media: disc
Source Time Period of Content:
Time Period Information
Single Date/Time
Calendar Date: 19910725
Source Currentness Reference: coverage date
Source Citation Abbreviation: NFLSQUAD
Source Contribution: Subsets provided quadrangle border and corner tic templates for digitizing into or for transforming scanned files to ground coordinates.

Source Information
Source Citation:
Originator: USGS
Publication Date: various
Title: USGS 7.5' and 7.5' X 15' Topographic Quadrangles
Geospatial Data Presentation Form: map
Source Scale Denominator: 24000 or 25000
Type of Source Media: paper
Source Time Period of Content:
Time Period Information
Range of Dates/Times
Beginning Date: 1964
Ending Date: 1979
Source Currentness Reference: publication date
Source Citation Abbreviation: WSQUADS
Source Contribution: Used to determine quadrangle-based study area boundary. See Table 1 for USGS 7.5' quadrangles used in this project.

Source Information
Source Citation:
Originator: USGS
Publication Date: various
Title: National Aerial Photography Program (NAPP)
Geospatial Data Presentation Form: aerial photograph
Source Scale Denominator: 40000
Type Of Source Media: 9" X 9" color infrared vertical aerial photographic transparencies
Source Time Period of Content:
Time Period Information
Range of Dates/Times
Beginning Date: 19940514
Ending Date: 19970502
Source Currentness Reference: flight dates
Source Citation Abbreviation: PHOTOS
Source Contribution: Source for wetlands delineations and cover types for all quadrangles.

Source Information
Source Citation:
Originator: USGS
Publication Date: various
Title: USGS 7.5' Orthophotoquad
Geospatial Data Presentation Form: map
Source Scale Denominator: 24000
Type of Source Media: stable-base material
Source Time Period of Content:
Time Period Information
Range of Dates/Times
Beginning Date: 19760513
Ending Date: 19940514
Source Currentness Reference: Date of aerial photograph used for orthophoto creation.
Source Citation Abbreviation: ORTHO
Source Contribution: Map base for transfer of wetland photo overlay delineations.

Process Step
Process Description: Wetlands polygons were transferred from aerial photograph overlays to orthophoto overlays using an IIS Stereo Zoom Transfer Scope. The orthophoto overlays were either digitized or scanned, depending upon wetland complexity and extent.
Source Used Citation Abbreviation: PHOTO wetland overlay
Source Produced Citation Abbreviation: ORTHO-POLY
Process Contact
Contact Organization Primary
Contact Organization: Remote Sensing Laboratory, Plattsburgh State University
Contact Person: Eileen B. Allen
Contact Position: Research Associate
Contact Address
Address Type: mailing and physical address
Address: Center for Earth and Environmental Science, 101 Broad Street
City: Plattsburgh
State or Province: New York
Postal Code: 12901
Country: USA
Contact Voice Telephone: (518) 564-4029 or 564-2028
Contact Facsimile Telephone: (518) 564-5267
Contact Electronic Mail Address: eileen.allen@plattsburgh.edu
Hours of Service: 8:30 AM - 4:30 PM Monday through Friday

Process Step
Process Description: Wetland labels were created by transferring wetland labels denoted on aerial photograph overlays using a Kail Reflecting Reducer/Enlarger to orthophoto overlays.
Source Used Citation Abbreviation: PHOTO wetland overlay
Source Produced Citation Abbreviation: ORTHO-LABEL
Process Contact: See previous step creating ORTHO-POLY.

Process Step
Process Description: Create a file using ArcEdit with four quadrangle border arcs and four corner tics for each 7.5' USGS quadrangle in the study area. Build each coverage and assign ARCVALUE, DECQUAD, APAQUAD, METRICQD, and appropriate arc User-IDs.
Source Used Citation Abbreviation: NFLSQUAD
Source Produced Citation Abbreviation: QD

Process Step
Process Description: Using ArcEdit, ADD wetland arcs into QD file for each hand-digitized quadrangle.
Source Used Citation Abbreviation: QD
Source Produced Citation Abbreviation: WTLDIG

Process Step
Process Description: Clean digitized wetlands file (CLEAN WTLDIG WTLCLN 0.00 1.219). Calculate all arc User-IDs to a value of 6. BUILD coverage.
Source Used Citation Abbreviation: WTLDIG
Source Produced Citation Abbreviation: WTLCLN

Process Step
Process Description: Clip manually digitized wetland arcs with quadrangle border (CLIP WTLCLN QD WTLFILED). BUILD coverage.
Source Used Citation Abbreviation: WTLCLN
Source Produced Citation Abbreviation: WTLFILED

Process Step
Process Description: Vectorize scanned wetland file (400 dpi, TIFF format) using R2V software (Able Software Co., Lexington, MA) and a 1.1 smoothing factor.
Source Produced Citation Abbreviation: WTLVECT

Process Step
Process Description: Import vectorized wetland file (IMPORT COVER SCANMAP WTLMAP). Tics were scanned as label points; reassign label locations as tic locations using TABLES. Remove label points, old tics, and BUILD coverage.
Source Used Citation Abbreviation: WTLVECT
Source Produced Citation Abbreviation: WTLMAP

Process Step
Process Description: Copy quadrangle file (COPYCOV QD QTLTIC) and create a tic-only file with UTM coordinates. BUILD coverage.
Source Used Citation Abbreviation: QD
Source Produced Citation Abbreviation: WTLTIC

Process Step
Process Description: Transform scanned polygons (digitizer units) into the empty tic file (UTM coordinates) (TRANSFORM WTLMAP WTLTIC).
Source Used Citation Abbreviation: WTLMAP, WTLTIC
Source Produced Citation Abbreviation: WTLTIC

Process Step
Process Description: Clean scanned wetlands file (CLEAN WTLTIC WTLFILES 0.00 1.219). Calculate all arc User-Ids to a value of 6. BUILD coverage.
Source Used Citation Abbreviation: WTLTIC
Source Produced Citation Abbreviation: WTLFILES

Process Step
Process Description: COPYCOV WSQUADS WSA. Edit WSA in ArcEdit to retain only the outer study area boundary (St. Regis River watershed and Adirondack Park boundary). BUILD file.
Source Used Citation Abbreviation: WSQUADS
Source Produced Citation Abbreviation: WSA

Process Step
Process Description: Add outer study area boundary to 7.5' quadrangle boundary (UNION WSA QD BOUND 0.00) as needed. Delete extraneous arcs (quadrangle borders outside of study area) to create a clipping polygon. CREATELABELS and BUILD.
Source Used Citation Abbreviation: WSA
Source Produced Citation Abbreviation: BOUND

Process Step
Process Description: Add study area boundary to wetland file and clip arcs to that border (IDENTITY BOUND WTLFILED WTLBOR POLY 0.00 or IDENTITY BOUND WTLFILES WTLBOR POLY 0.00) as necessary.
Source Used Citation Abbreviation: WTLFILED or WTLFILES
Source Produced Citation Abbreviation: WTLBOR

Process Step
Process Description: Add quadrangle boundary to WTLBOR to produce a final wetland polygon file (IDENTITY QD WTLBOR WTL POLY 0.00) ready for wetland label additions.
Source Used Citation Abbreviation: QD
Source Produced Citation Abbreviation: WTL

Process Step
Process Description: Add appropriate arc and polygon label columns to each wetland coverage with a macro. Create label point with unique User-ID for each polygon (CREATELABELS WTLFILED, CREATELABELS WTLFILES, or CREATELABELS WTL). BUILD and check with LABELERRORS. Double-check all polygons less than 500 square meters for digitizing or scanning errors. Calculate unique User-IDs for wetland arcs.
Source Used Citation Abbreviation: WTLFILED, WTLFILES, or WTL
Source Produced Citation Abbreviation: WTLA

Process Step
Process Description: Create hard copy of coverage in ArcPlot showing label points and arcs. Check against ORTHO-POLY. Use this map for arc and polygon label entry.
Source Used Citation Abbreviation: WTLA
Source Used Citation Abbreviation: WTLA
Source Produced Citation Abbreviation: WTLA-edits

Process Step
Process Description: Make map corrections in ArcEdit. MOVEITEM using a custom digitizer menu to add wetland label components to arcs and polygons. BUILD or CLEAN as appropriate.
Source Used Citation Abbreviation: WTLA-edits
Source Produced Citation Abbreviation: WTLB

Process Step
Process Description: Concatenate SYSTEM, CLASS1, CLASS2, REGIME, SPECIAL1, SPECIAL2, and SPECIAL3 into NWILABEL using dBASE IV. BUILD.
Source Used Citation Abbreviation: WTLB
Source Produced Citation Abbreviation: WTLC

Process Step
Process Description: Create hard copy edit map in ArcPlot showing arcs, linear wetlands, and NWILABEL. Overlay with ORTHO-LABEL, and if necessary, ORTHO-POLY. Make any edit changes in ArcEdit. BUILD or CLEAN.
Source Used Citation Abbreviation: WTLC
Source Produced Citation Abbreviation: WTLD

Process Step
Process Description: Edgematch arcs (using interactive EDGEMATCH) along adjoining quadrangles. North and east quadrangle edges were held constant. CLEAN.
Source Used Citation Abbreviation: WTLD
Source Produced Citation Abbreviation: WTLE

Process Step
Process Description: Use ArcView to check that polygons and linear wetlands posses the same NWILABEL along adjoining quadrangle boundaries. Use ArcEdit to correct and BUILD if necessary.
Source Used Citation Abbreviation: WTLE
Source Produced Citation Abbreviation: WTLF

Process Step
Process Description: Use NWILABEL as the basis to DISSOLVE arcs with the same wetland label on either side (DISSOLVE WTLF WTLCHK NWILABEL). Compare WETLAND with WTLCHK. This quality control step assures that adjacent polygons do not have the same NWILABEL unless the arc splitting the polygon is a labeled linear wetland.
Source Used Citation Abbreviation: WTLF
Source Produced Citation Abbreviation: WTLG

Process Step
Process Description: Make corrections in ArcEdit as noted in DISSOLVE. BUILD. Follow list of final quality assurance/quality control measures (full list in Final Report) and make changes. BUILD or CLEAN as needed.
Source Used Citation Abbreviation: WTLF
Source Produced Citation Abbreviation: WETLAND

Process Step
Process Description: EXPORT WETLAND coverages (EXPORT COVER WETLAND WTLEXP N). Compress using PKZIP. Transport to NYS APA on ZIP disk.

Process Step
Process Description: At APA, IMPORT wetland *.e00 files. MAPJOIN wetland quad coverages to final coverage, called STREGWTLND, using the St. Regis watershed boundary (SROUTER) as a clipcover: MAPJOIN STREGWTLND # # SROUTER

Cloud Cover: 0

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Spatial Data Organization Information

Indirect Spatial Reference: Wetlands are defined as polygons identified by a software-placed label point or as an arc labeled with a wetland cover type. Some arcs and polygons represent boundaries imposed by the quadrangle borders and therefore do not represent true feature boundaries. All non-wetland polygons possess either a U SYSTEM and NWILABEL or have blank wetland cover types (outside the study area). All non-wetland arcs possess a blank cover type label.

Direct Spatial Reference Method: Vector
Point and Vector Object Information
SDTS Point and Vector Object Type: Complete chain
Point and Vector Object Count: update, depending on quadrangle
SDTA Point and Vector Object Type: Label point
Point and Vector Object Count: update, depending on quadrangle

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Spatial Reference Information

Horizontal Coordinate System Definition
Planar
Grid Coordinate System
Grid Coordinate System Name: Universal Transverse Mercator
Universal Transverse Mercator
UTM Zone Number: 18
Longitude of Central Meridian: -75
Latitude of Projection Origin: 0
False Easting: 0
False Northing: 0
Scale Factor at Central Meridian: 1
Planar Coordinate Information
Coordinate Representation
Abscissa Resolution: 0.1
Ordinate Resolution: 1
Planar Distance Units: meters
Geodetic Model
Horizontal Datum Name: North American Datum of 1927
Ellipsoid Name: Clarke 1866
Semi-Major Axis: 6378206
Denominator of Flattening Ratio: 294.98

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Entity and Attribute Information

Detailed Description
Entity Type
Entity Type Label: {wetland coverage name}.PAT
Entity Type Definition: Polygon attribute table
Entity Type Definition Source: Arc/Info
Attribute
Attribute Label: AREA
Attribute Definition: Area of polygon in square coverage units, positive real numbers (the universe polygon possesses a negative value).
Attribute Definition Source: computed
Attribute Units of Measurement: Square meters
Attribute Measurement Resolution: 0.001
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: PERIMETER
Attribute Definition: Perimeter of polygon in coverage units, positive real numbers.
Attribute Definition Source: Computed
Attribute Units of Measurement: Meters
Attribute Measurement Resolution: 0.001
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: {wetland coverage name}#
Attribute Definition: Internal feature number.
Attribute Definition Source: Software assigned
Attribute Units of Measurement: Positive integer
Attribute Measurement Resolution: 1
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: {wetland coverage name}-ID
Attribute Definition: User-assigned feature number; User-ID.
Attribute Definition Source: User-defined
Attribute Units of Measurement: Positive integer
Attribute Measurement Resolution: 1
Beginning Date of Attribute Values: coverage date
Ending Date of Attribute Values:
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: USGS_NAME
Attribute Definition: USGS 7.5' quadrangle name.
Attribute Definition Source: USGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 1
Enumerated Domain Value Definition: See Table 1
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: Coverage date
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: DOT_NAME
Attribute Definition: NYS Department of Transportation name for 7.5' USGS Quadrangle.
Attribute Definition Source: NYS DOT
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 1
Enumerated Domain Value Definition: See Table 1
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: Coverage date
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: APAQUAD
Attribute Definition: APA code for individual 7.5' USGS Quadrangles.
Attribute Definition Source: NYS APA
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 1
Enumerated Domain Value Definition: See Table 1
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: Coverage date
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: DECQUAD
Attribute Definition: NYS DEC code for individual 7.5' USGS quadrangles.
Attribute Definition Source: NYS DEC
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 1
Enumerated Domain Value Definition: See Table 1
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: Coverage date
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: METRICQD
Attribute Definition: USGS 7.5' X 15' quadrangle name, where applicable.
Attribute Definition Source: USGS
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 1
Enumerated Domain Value Definition: See Table 1
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: Coverage date
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: SYSTEM
Attribute Definition: Complex of wetlands and deepwater habitats that share the influence of similar hydrologic, geomorphologic, chemical, or biological factors. This parameter is mandatory for all polygons in the study area.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 2
Enumerated Domain Value Definition: See Table 2
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: CLASS1
Attribute Definition: General appearance of the habitat in terms of either the dominant life form of the vegetation or the physiography and composition of the substrate. Covers at least 30% of the substrate. A value in this column is mandatory for all wetland polygons.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 3
Enumerated Domain Value Definition: See Table 3
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: CLASS2
Attribute Definition: General appearance of the habitat in terms of either the dominant life form of the vegetation or the physiography and composition of the substrate. Covers at least 30% of the substrate. Life form must be the same or lower in height than CLASS1. If the same general life form as CLASS1 (ex. FO), CLASS2 has equal or less areal extent. A value in this column is not mandatory.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 3
Enumerated Domain Value Definition: See Table 3
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: REGIME
Attribute Definition: The water regime modifier describes the hydrologic characteristics of the community. Only non-tidal regimes were used in the Adirondacks. A value in this column is mandatory for all wetland polygons.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 4
Enumerated Domain Value Definition: See Table 4
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL1
Attribute Definition: Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL2
Attribute Definition: Special modifiers are used to denote man- made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL3
Attribute Definition: Special modifiers are used to denote man- made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: NWILABEL
Attribute Definition: Unified label of SYSTEM, CLASS1, CLASS2, REGIME, SPECIAL1, SPECIAL2, and SPECIAL3. See the definitions of the individual components. This attribute is considered the NWI wetland label. Mandatory parameter for all polygons within the study area, including upland polygons. See the Final Report for the project for the list of NWI cover types utilized in the St. Regis River Drainage Basin Project.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Tables 2-5
Enumerated Domain Value Definition: See Tables 2-5
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed

Entity Type
Entity Type Label: {wetland coverage name}.AAT
Entity Type Definition: Arc attribute table
Entity Type Definition Source: Arc/Info
Attribute
Attribute Label: FNODE#
Attribute Definition: Internal number of from-node.
Attribute Definition Source: software assigned
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: sequential unique positive integer
Enumerated Domain Value Definition: software assigned
Enumerated Domain Value Definition Source: software assigned
Attribute Units of Measurement: 1
Attribute Measurement Resolution: integer
Beginning Date of Attribute Values: coverage date
Attribute Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation based on topology.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: TNODE#
Attribute Definition: internal number of to-node
Attribute Definition Source: software assigned
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: positive integer
Enumerated Domain Value Definition: software assigned
Enumerated Domain Value Definition Source: software
Attribute Units of Measurement: 1
Attribute Measurement Resolution: integer
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation based on topology.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: LPOLY#
Attribute Definition: Internal number of polygon to left of arc.
Attribute Definition Source: software assigned
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: positive integer
Enumerated Domain Value Definition: software assigned based on topology
Enumerated Domain Value Definition Source: software
Attribute Units of Measurement: 1
Attribute Measurement Resolution: integer
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation based on topology.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: RPOLY#
Attribute Definition: Internal number of polygon to right of arc.
Attribute Definition Source: software assigned
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: positive integer
Enumerated Domain Value Definition: software
Enumerated Domain Value Definition Source: software assigned
Attribute Units of Measurement: 1
Attribute Measurement Resolution: integer
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation based on topology.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: LENGTH
Attribute Definition: Length of arc in coverage units.
Attribute Definition Source: automatic software calculation
Attribute Units of Measurement: meters
Attribute Measurement Resolution: 0.001
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: {wetland coverage name}#
Attribute Definition: Internal feature number.
Attribute Definition Source: software assigned
Attribute Units of Measurement: sequential unique positive integer
Attribute Measurement Resolution: 1
Beginning Date of Attribute Values: coverage date
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Automatic software calculation.
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: {wetland coverage name}-ID
Attribute Definition: User-assigned feature number.
Attribute Definition Source: user-defined
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 6
Enumerated Domain Value Definition: See Table 6
Attribute Units of Measurement: integer
Attribute Measurement Resolution: 1
Beginning Date of Attribute Values: coverage date
Attribute Measurement Frequency: As Needed
Attribute
Attribute Label: ARCVALUE
Attribute Definition: Value to uniquely identify the quadrangle borders throughout the study area; also a unique value (1) for the St. Regis River Drainage Basin Study Area (study area boundary). Linear wetlands and wetland polygon boundaries are given a value of 0.
Attribute Definition Source: user-defined
Attribute Units of Measurement: integer
Attribute Measurement Resolution: 1
Attribute Measurement Frequency: None planned
Attribute
Attribute Label: SYSTEM
Attribute Definition: Complex of wetlands and deepwater habitats that share the influence of similar hydrologic, geomorphologic, chemical, or biological factors. This parameter is mandatory for all linear wetlands in the study area.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 2
Enumerated Domain Value Definition: See Table 2
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: CLASS1
Attribute Definition: General appearance of the habitat in terms of either the dominant life form of the vegetation or the physiography and composition of the substrate. Covers at least 30% of the substrate. A value in this column is mandatory for all linear wetlands.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 3
Enumerated Domain Value Definition: See Table 3
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: CLASS2
Attribute Definition: General appearance of the habitat in terms of either the dominant life form of the vegetation or the physiography and composition of the substrate. Covers at least 30% of the substrate. Life form must be the same or lower in height than CLASS1. If the same general life form as CLASS1 (ex. FO), CLASS2 has equal or less areal extent. A value in this column is not mandatory.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 3
Enumerated Domain Value Definition: See Table 3
Attribute Units of Measurement: Alpha-numeric
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: REGIME
Attribute Definition: The water regime modifier describes the hydrologic characteristics of the community. Only non-tidal regimes were used in the Adirondacks. A value in this column is mandatory for all linear wetlands.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 4
Enumerated Domain Value Definition: See Table 4
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL1
Attribute Definition: Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL2
Attribute Definition: Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: SPECIAL3
Attribute Definition: Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Table 5
Enumerated Domain Value Definition: See Table 5
Attribute Units of Measurement: Alpha
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed
Attribute
Attribute Label: NWILABEL
Attribute Definition: Unified label of SYSTEM, CLASS1, CLASS2, REGIME, SPECIAL1, SPECIAL2, and SPECIAL3. See the definitions of the individual components. This attribute is considered the NWI wetland label. Mandatory parameter for all linear wetlands within the study area, including upland polygons. See Final Report for the project for the list of NWI cover types utilized in the St. Regis River Drainage Basin Project.
Attribute Definition Source: Cowardin et al. 1979
Attribute Domain Values
Enumerated Domain
Enumerated Domain Value: See Tables 2-5
Enumerated Domain Value Definition: See Tables 2-5
Attribute Units of Measurement: Alpha-numeric
Attribute Measurement Resolution:
Beginning Date of Attribute Values: 1994 (imagery date)
Ending Date of Attribute Values: 1997 (imagery date)
Attribute Value Accuracy Information
Attribute Value Accuracy Explanation: Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency: As needed

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Distribution Information

Distributor
Contact Organization Primary
Contact Organization: NYS Adirondack Park Agency
Contact Person: John W. Barge
Contact Position: Senior Natural Resource Planner
Contact Address
Address Type: mailing and physical address
Address: PO Box 99, Route 86
City: Ray Brook
State or Province: New York
Postal Code: 12977
Country: USA
Contact Voice Telephone: (518) 891-4050
Contact Facsimile Telephone: (518) 891-3938
Contact Electronic Mail Address: jwbarge@gw.dec.state.ny.us
Hours of Service: 9:00 AM - 5:00 PM Monday through Friday

Resource Description: Wetlands in the Greater Upper Hudson River Watershed Arc/Info Coverage

Distribution Liability: Although these data have been processed successfully on a computer system at the NYS APA, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data be directly acquired from the NYS APA, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The NYS APA shall not be held liable for improper or incorrect use of the data described and/or contained herein. These data shall not be used for legal jurisdictional determinations.

Standard Order Process
Digital Form
Format Name: ARCE uncompressed, in PK zip compressed format
Format Version Date: December 29, 2000
Format Information Content: EXPORT with no compression
File Decompression Technique: PK unzip or compatible method
Digital Transfer Option
Online Option Data is available from the New York State GIS Metadata Repository. The New York State GIS Metadata Repository can be found at http://www.nysl.nysed.gov/gis/repository/index.html. Once at this site, navigate to the Adirondack Park Agency.

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Metadata Reference Information

Metadata Date: 20001229

Metadata Contact:
Contact Organization Primary
Contact Organization: Remote Sensing Laboratory, Plattsburgh State University
Contact Person: Eileen B. Allen
Contact Position: Research Associate
Contact Address
Address Type: mailing and physical address
Address: Center for Earth and Environmental Science, 101 Broad Street
City: Plattsburgh
State or Province: New York
Postal Code: 12901
Country: USA
Contact Voice Telephone: (518) 564-4029 or 564-2028
Contact Facsimile Telephone: (518) 564-5267
Contact Electronic Mail Address: eileen.allen@plattsburgh.edu
Hours of Service: 8:30 AM - 4:30 PM Monday through Friday

Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: June 8, 1994 (Version 1.0)
Metadata Time Convention: local time
Metadata Use Constraints: None
Metadata Security Information
Metadata Security Classification System: None
Metadata Security Classification: Unclassified
Metadata Security Handling Description: None

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Table 1. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; Quadrangle Attributes.

USGS_NAME DOT_NAME APAQUAD DECQUAD METRICQD
OWLS_HEAD OWLS_HEADB24NWC241 
LAKE_TITUS LAKE_TITUS B23NE C232  
SANTA_CLARA SANTA_CLARA B23NW C231  
SAINT_REGIS_FALLS SAINT_REGIS_FALLS B22NE C222  
NICHOLVILLE NICHOLVILLE B22NW C221  
DEBAR_MOUNTAIN DEBAR_MOUNTAIN B24SW C244  
MEACHAM_LAKE MEACHAM_LAKE B23SE C233  
MENO MENO B23SW C234  
LAKE_OZONIA LAKE_OZONIA B22SE C223  
SYLVAN_FALLS SYLVAN_FALLS B22SW C224  
RAINBOW_FALLS RAINBOW_FALLS B21SE C213  
BLOOMINGDALE_(WEST) GABRIELS C24NW D241 BLOOMINGDALE
ST_REGIS_MTN_(EAST) ST_REGIS C23NE D232 ST._REGIS_MTN
ST_REGIS_MTN_(WEST) BRANDON C23NW D231 ST._REGIS_MTN
AUGERHOLE_FALLS AUGERHOLE_FALLS C22NE D222  
UPPER_SARANAC_LK_(E) UPPER_SARANAC C23SE D233 UPPER_SARANAC_LAKE
UPPER_SARANAC_LK_(W) DERRICK C23SW D234 UPPER_SARANAC_LAKE
MOUNT_MATUMBLA MOUNT_MATUMBLA C22SE D223  

Table 2. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; SYSTEM Attributes.

SYSTEM Definition Can be found in what attribute table
L1 Lacustrine habitat, greater than 8 hectares (20 acres) and more than 2 meters deep poly
P Palustrine habitat, non-tidal, less than 8 hectares (20 acres) and less than 2 meters deep poly,arc
R2 Lower perennial riverine poly, arc
R3 Upper perennial riverine poly, arc
R4 Intermittent riverine arc
U Upland poly

Table 3. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; CLASS1 and CLASS2 Attributes. [Note: all CLASS2 attributes preceded by "/" to form the concatenated NWILABEL]

CLASS Definition Can be found in what attribute table
EM1 Persistent emergent poly, arc
FO1 Forested, broad-leaved deciduous poly, arc
FO2 Forested, needle-leaved deciduous poly
FO4 Forested, evergreen poly, arc
FO5 Forested, dead poly
OW Open water poly, arc
SB3 Cobble/gravel streambed arc
SS1 Broad-leaved deciduous scrub/shrub (shorter than 6 meters) poly, arc
SS2 Needle-leaved deciduous scrub/shrub (shorter than 6 meters) poly
SS3 Broad-leaved evergreen scrub/shrub (shorter than 6 meters) poly, arc
SS4 Needle-leaved evergreen scrub/shrub (shorter than 6 meters) poly, arc
SS5 Dead scrub/shrub (shorter than 6 meters) poly
UB3 Mud unconsolidated bottom poly

Table 4. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; REGIME Attributes.

REGIME Definition Can be found in what attribute table
B Saturated poly, arc
D Seasonally flooded - well drained poly
E Seasonally flooded - saturated poly, arc
F Semipermanent poly, arc
H Permanent poly, arc

Table 5. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; SPECIAL1, SPECIAL2, and SPECIAL3 Attributes. [Notes: Neither SPECIAL2 nor SPECIAL3 were utilized in the polygon attribute file. SPECIAL3 was not utilized in the arc attribute file.]

SPECIAL Definition Can be found in what attribute table
b Beaver poly, arc
d Partially drained, ditched poly, arc
f Farmed poly
h Diked/impounded poly
x Excavated poly, arc
/U Upland. Used in mixed upland/wetland habitats too homogeneous for separate delineations. Although this designation is not an official Cowardin et al. definition, it is in use by various NWI offices and was suggested for use in this project by Ralph W. Tiner, Jr., U.S. Fish and Wildlife Service. poly

Table 6. St. Regis River (St. Lawrence I) Watershed; Wetlands Data Layer; Arc User-ID Attributes.

User-ID Definition
1 north quadrangle boundary
2 east quadrangle boundary
3 south quadrangle boundary
4 west quadrangle boundary
5 outer study area boundary
>5 wetland arcs and polygon boundaries

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