Originator: Northern Forest Lands Project, SUNY ESF (ed.)
Title: Northern Forest Lands Quadrangle File (derived from the data set "NYTM
Coordinates 11/22/89" purchased from NYSDOT - Mapping Services Bureau)
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
Originator: USGS Publication Date: various Title: USGS 7.5' and 7.5' X 15' Topographic
Source_Scale_Denominator: 24000 or 25000
Source_Currentness_Reference: publication date
Source_Contribution: Used to determine quadrangle-based study area boundary.
Originator: USGS Publication Date: various
Title: National Aerial Photography Program (NAPP)
Geospatial_Data_Presentation_Form: aerial photograph
Type_of_Source_Media: 9" X 9" color infrared vertical aerial photographic transparencies Source Time
Period of Content:
Source_Currentness_Reference: flight dates
Source_Contribution: Source for wetlands delineations and cover types for all quadrangles.
Originator: USGS Publication Date: various Title: USGS 7.5' Orthophotoquad Geospatial Data
Presentation Form: map
Type_of_Source_Media: stable-base material
Source_Currentness_Reference: Date of aerial photograph used for orthophoto creation.
Source_Contribution: Map base for transfer of wetland photo overlay delineations.
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:
<mailto:email@example.com> Hours of Service: 8:30 AM - 4:30 PM Monday
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
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.
Process_Description: Using ArcEdit, ADD wetland arcs into QD file for each hand-digitized
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_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_Description: Vectorize scanned wetland file (400 dpi, TIFF format) using R2V software (Able
Software Co., Lexington, MA) and a1.1 smoothing factor.
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.
Process_Description: Copy quadrangle file (COPYCOV QD QTLTIC) and create a tic-only file with UTM
coordinates. BUILD coverage.
Process_Description: Transform scanned polygons (digitizer units) into the empty tic file (UTM
coordinates) (TRANSFORM WTLMAP WTLTIC).
Source_Used_Citation_Abbreviation: WTLMAP, WTLTIC
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.
Process_Description: COPYCOV WSQUADS WSA. Edit WSA in ArcEdit to retain only the outer study area
boundary (either Oswegatchie-Black, Upper Hudson, or St. Regis River watershed and
Adirondack Park boundary). BUILD file.
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.
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
Source_Used_Citation_Abbreviation: WTLFILED or WTLFILES
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.
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
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.
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.
Process_Description: Concatenate SYSTEM, CLASS1, CLASS2, REGIME, SPECIAL1, SPECIAL2, and SPECIAL3 into
NWILABEL using dBASE IV. BUILD.
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: WTLD Source Produced Citation Abbreviation: WTLE
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
Source_Used_Citation_Abbreviation: WTLE Source Produced Citation Abbreviation: WTLF
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.
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.
Process_Description: EXPORT WETLAND coverages (EXPORT COVER WETLAND WTLEXP N). Compress using PKZIP.
Transport to NYS APA on ZIP disk.
Process_Description: Unzip and import quad coverages in ArcInfo, project from UTM meters, NAD27 to
NAD83, re-BUILD topology.