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Cover Type Wetlands Map of the Oswegatchie-Black, Upper Hudson, and St. Regis Watersheds in New York State, 2000

  • Identification Information
  • Data Quality Information
  • Spatial Data Organization Information
  • Spatial Reference Information
  • Entity and Attribute Information
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  • Metadata Reference Information
Identification Information
Citation
Originator
New York State Adirondack Park Agency
Originator
Daniel M. Spada, Project Director (compiler)
Publication Date
20001229
Title
Cover Type Wetlands Map of the Oswegatchie-Black, Upper Hudson, and St. Regis Watersheds in New York State, 2000
Geospatial Data Presentation Form
vector digital data
Series Information
Series Name
Watershed Scale Protection for Adirondack Wetlands
Issue Identification
EPA State Watershed Protection Grant Wetlands Mapping
Publication Information
Publication Place
Ray Brook, NY
Publisher
New York State Adirondack Park Agency
Online Linkage
https://cugir.library.cornell.edu/catalog/cugir-008185
Abstract
A set of 18 USGS 7.5' quadrangle-based wetland coverages was prepared for the Oswegatchie-Black, Upper Hudson, and St. Regis River watersheds, primarily within the New York State Adirondack Park using PC Arc/Info 3.4D+ at the Remote Sensing Laboratory, Plattsburgh State University (RSL). Wetlands were delineated on 1:40000 color infrared National Aerial Photography Program (NAPP) transparencies (for the Oswegatchie-Black watershed 1:58,000-scale National High Altitude Photography (NHAP) color infrared photos were used), 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 138 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. Scale 1:24,000.
Purpose
The wetlands database is part of a larger database designed to help evaluate watershed/wetland relationships and provide data for cumulative impact assessments. 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.
Temporal Extent
Currentness Reference
imagery date
Time Period
Beginning
19940514
End
19970502
Bounding Box
West
-75.3268
East
-73.2812
North
44.8820
South
43.0393
Theme Keyword
Vegetation
National Wetlands Inventory (NWI) cover types
Theme Keyword Thesaurus
None
Theme Keyword
Wetlands
Theme Keyword Thesaurus
LCSH
ISO Topic Category
environment
inlandWaters
planningCadastre
Theme Keyword
environment
inland waters
property
Theme Keyword Thesaurus
CUGIR Category
Place Keyword
Adirondack Park
Adirondack Mountains
Oswegatchie Black River Drainage Basin
St. Regis River Drainage Basin
Upper Hudson River Drainage Basin
Place Keyword Thesaurus
Geographic Names Information System
Temporal Keyword
Date of aerial photography: 1994-1997 (NHAP 1984-1985)
Date of orthophoto quadrangles: 1976-1994
Temporal Keyword Thesaurus
None
Access Restrictions
None
Use Restrictions
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 APA address, Attention, Nancy Heath Librarian.
Status
Complete
Maintenance and Update Frequency
As needed
Credit
Funding was provided by the US Environmental Protection Agency Office of Wetlands Protection; State Wetlands Protection Program; Projects #X 002777-01-0 (Oswegatchie-Black), #CD-992290-01-0 (Upper Hudson), #CD 992441-01-0 (St. Regis) 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).
Native Data Set Environment
PC-Arc/Info, Arc/Info
Data Quality Information
Attribute Accuracy Report
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. Quantititative Attribute Accuracy Assessment:
Quantitative Attribute Accuracy Assessment
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.
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 onep encil width (about 12 meters at 1:24000).
Lineage
Source
Originator
Northern Forest Lands Project, SUNY ESF (ed.)
Publication Date
1991-07-25
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 Temporal Extent
Time Period Information
Single Date/Time
Source Currentness Reference
coverage date
Source
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 Temporal Extent
Time Period Information
Range of Dates/Times
Source Currentness Reference
publication date
Contribution
Used to determine quadrangle-based study area boundary.
Source
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:
Source Temporal Extent
Time Period Information
Range of Dates/Times
Source Currentness Reference
flight dates
Contribution
Source for wetlands delineations and cover types for all quadrangles.
Source
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 Temporal Extent
Time Period Information
Range of Dates/Times
Ending Date
1994-05-14
Source Currentness Reference
Date of aerial photograph used for orthophoto creation.
Contribution
Map base for transfer of wetland photo overlay delineations.
Spatial Data Organization Information
Indirect Spatial Reference Method
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 Terms Description
SDTS Point and Vector Object Type
G-polygon
Point and Vector Object Count
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
Transverse Mercator
Scale Factor at Central Meridian
0.9996
Longitude of Central Meridian
-75
Latitude of Projection Origin
0
False Easting
500000
False Northing
0
Planar Coordinate Information
Planar Coordinate Encoding Method
Coordinate pair
Coordinate Representation
Abscissa Resolution
1
Ordinate Resolution
1
Planar Distance Units
Meters
Geodetic Model
Horizontal Datum Name
North American Datum of 1983
Ellipsoid Name
GRS-80
Semi-major Axis
6378137
Denominator of Flattening Ratio
298.257222
Entity and Attribute Information
Entity Type
Entity Type Label
{wetland coverage name}.PAT
Entity Type Definition
wetlands polygons
Entity Type Definition Source
Arc/Info
Attributes
AREA
Area of polygon in square meters (real number)
Definition Source
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
PERIMETER
Perimeter of polygon in meters (real number)
Definition Source
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
{wetland coverage name}#
Internal feature number. (integer)
Definition Source
Software assigned
{wetland coverage name}-ID
User-assigned feature number; User-ID. (integer)
Definition Source
User-defined
Definition Source
Software assigned
USGS_NAME
USGS 7.5' quadrangle name. (string)
Definition Source
USGS
DOT_NAME
NYS Department of Transportation name for 7.5' USGS Quadrangle. (string)
Definition Source
NYS DOT
APAQUAD
APA code for individual 7.5' USGS Quadrangles (string)
Definition Source
NYS APA
DECQUAD
NYS DEC code for individual 7.5' USGS quadrangles. (string)
Definition Source
NYS DEC
METRICQD
USGS 7.5' X 15' quadrangle name, where applicable. (string)
Definition Source
USGS
SYSTEM
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. ( See Table 1 in APA_wetlands.html )
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation.
Attribute Measurement Frequency
As needed
CLASS1
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. (See Table 2 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
CLASS2
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. (See Table 2 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
REGIME
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. (See Table 3 in APA_wetlands.html)
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997(imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL1
Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL2
Special modifiers are used to denote man- made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al.1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997(imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL3
Special modifiers are used to denote man- made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
NWILABEL
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 Tables 1-4 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
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
Attributes
FNODE#
Internal number of from-node (unique positive integer)
Definition Source
software assigned
TNODE#
internal number of to-node (unique positive integer)
Definition Source
software assigned
LPOLY#
Internal number of polygon to left of arc. (unique positive integer)
Definition Source
software assigned
RPOLY#
Internal number of polygon to right of arc. (unique positive integer)
Definition Source
software assigned
LENGTH
Length of arc in meters.
Definition Source
automatic software calculation
Beginning Date of Attribute Values
coverage date
Attribute Value Accuracy Explanation
Automatic software calculation.
Attribute Measurement Frequency
As Needed
{wetland coverage name}#
Internal feature number. (integer)
Definition Source
software assigned
Beginning Date of Attribute Values
coverage date
Attribute Value Accuracy Explanation
Automatic software calculation.
Attribute Measurement Frequency
As Needed
{wetland coverage name}-ID
User-assigned feature number (See Table 5 in APA_wetlands.html)
Definition Source
User-defined
Beginning Date of Attribute Values
coverage date
Attribute Measurement Frequency
As Needed
ARCVALUE
Value to uniquely identify the quadrangle borders throughout the study area; also a unique value (1) for the Oswegatchie-Black, Upper Hudson, and St. Regis River Drainage Basin Study Area (study area boundary). Linear wetlands and wetland polygon boundaries are given a value of 0.
Definition Source
user-defined
Attribute Measurement Frequency
None planned
SYSTEM
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. (See Table 1 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
CLASS1
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. (See Table 2 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
CLASS2
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. (See Table 2 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
REGIME
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. (See Table 3 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL1
Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al 1979
Ending Date of Attribute Values
1997(imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL2
Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
SPECIAL3
Special modifiers are used to denote man-made or beaver modifications to the habitat. Optional parameter. (See Table 4 in APA_wetlands.html)
Definition Source
Cowardin et al.1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
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 Tables 1-4 in APA_wetlands.html)
Definition Source
Cowardin et al. 1979
Beginning Date of Attribute Values
1994 (imagery date)
Ending Date of Attribute Values
1997 (imagery date)
Attribute Value Accuracy Explanation
Attributes derived from photointerpretation techniques.
Attribute Measurement Frequency
As needed
Distribution Information
Format Name
E00
Format Name
metadata
Format Name
HTML metadata
Distributor
Albert R. Mann Library
Online Access
https://cugir-data.s3.amazonaws.com/00/81/85/cugir-008185.zip
Online Access
https://cugir-data.s3.amazonaws.com/00/81/85/fgdc.xml
Online Access
https://cugir-data.s3.amazonaws.com/00/81/85/fgdc.html
Name
Metadata Reference Information
Metadata Date
20190524
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Albert R. Mann Library
Contact Address
Address
Albert R. Mann Library
City
Ithaca
State or Province
New York
Postal Code
14853
Country
USA
Contact Voice Telephone
607-255-5406
Contact Electronic Mail Address
mann-ref@cornell.edu
Metadata Standard Name
FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version
FGDC-STD-001-1998
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