THEME: Watershed Boundaries, Glacier Bay National Park and Preserve I. IDENTIFICATION INFORMATION 1. Data Set name: glb_wshd 2. Originator: Interrain Pacific 3. Date: 2/15/97 4. Edition: 5. Description: This layer contains watershed boundaries for areas within Glacier Bay National Park and Preserve. Boundaries were delineated by staff at Glacier Bay National Park onto 1:63,360 USGS quads. These quads were digitized by Interrain Pacific and checked using a shaded relief representation of a USGS 1:250,000 digital elevation model. Watershed polygons were closed using segments of the NOAA nautical chart coastline. 6. Data Set Status: ___In preparation, Anticipated Completion_____ _X_Completed and operational ___On going; Update Frequency:____ Data Set Status Comments: 7. Geographic Coverage Description: This layer covers all of Glacier Bay National Park and Preserve. Please check appropriate USGS 1:250,000 maps: ___Atlin _X_Juneau _X_Mount Fairweather ___Port Alexander _X_Skagway ___Sumdum _X_Yakutat 8. West Bounding Coordinate: 149 30 00 W 9. East Bounding Coordinate: 145 00 00 W 10. North Bounding Coordinate: 61 30 00 N 11. South Bounding Coordinate: 59 45 00 N 12. Theme keywords: ___appraisal information ___archeology/cultural resources ___bathymetry ___birds ___boundaries ___easements ___elevation ___Exxon Valdez oil spill ___fish ___fisheries ___forests _X_geomorphology/landforms ___hydrography _X_hydrology ___infrastructure ___invertebrates ___land ownership ___land status ___land use ___mammals, marine ___mammals, terrestrial ___municipalities ___oceanography ___oiling ___precipitation ___recreation ___restoration ___roads ___shoreline ___soils ___streams, anadromous ___subsistence ___vegetation ___wetlands ___wildlife populations ___wildlife habitat ___other________ 13. Access Restrictions: Data transfer costs will be based on staff time and media costs. 14. Use Restrictions: Data may not be sold. 15. Processing Information: Software used to automate: ARC/INFO Software Version: 7.x Hardware Platform: SUN Operating System used: UNIX File Name: glb_wshd File Size: 425 K Feature Type: ___Point (data point) _X_Line (Arc) ___Polygon ___Grid ___Text ___Other 16. Raster File Form ___ADRG ARC Digitized Raster Graphic (ARC/INFO GRID format) ___ADRI ARC Digitized Raster Imagery ___BIL Imagery, band interleaved by line ___BIP Imagery, band interleaved by pixel ___BSQ Imagery, band sequential ___DEM USGS Digital Elevation Model ___ERD74 ERDAS image files version 7.4 ___ERD81 ERDAS IMAGINE image files, ver8.1 ___GRAS3 GRASS (Geographic Resources Analysis Support System)v3 ___GRAS4 GRASS (Geographic Resources Analysis Support System) v4 ___IDL Interactive Data Language image file ___MOSS Multiple Overlay Statistical System export file ___TIFF Tagged Image File Format ___Other Other Raster format not listed ________________________ 17. Raster File Sensor: ___LANDSAT Thematic Mapper TM ___LANDSAT Multi-spectral scanner MSS ___NOAA AVHRR ___SPOT ___aircraft scanner_____________ ___aircraft video_______________ ___scanned airphotos____________ ___scanned hard copy ___radar type____________________ ___other not listed______________ 18. Sensor Resolution______meters 19. Imagery Information ___panchromatic ___multispectral Band width/channels used___________ 20. Vector File Format: ___ARCE6 ARC/INFO Export format version 6 ___ARCE7 ARC/INFO Export format 7 ___ARCE ARC/INFO Export other version___ ___ASCII ASCII file, formatted for text attributes, declared format ___DXF9 AUTOCAD Drawing Exchange Format, ver9 ___DXF10 AUTOCAD Drawing Exchange Format,ver 10 ___DXF11 AUTOCAD Drawing Exchange Format, ver 11 ___DLGO US Geological Survey Digital Line Graph-Optional Format ___DLGS US Geological Survey Digital Line Graph-Standard Format ___ATLAS GIS______ _X_Other ARC/INFO version 7.0.3 21. Spatial Data Media Type (for data with a spatial component not stored in a graphic, mapping or GIS software): n/a Automated: Database: Spreadsheet: Word processor: Other: Non-Automated: Hardcopy textual data: Hardcopy map(s): II. DATA QUALITY INFORMATION 1. Attribute Accuracy Explanation: Interrain Pacific has not conducted any formal accuracy assessments on this data layer or the source datasets. 2. Attribute Accuracy: __________% __X__Unknown_____ _X_no accuracy assessment performed on dataset 3. Description of Data Completeness:. 4. Minimum Mapping Unit: _______________ __X__Unknown ____n/a 5. Positional Accuracy Comments: Discrepancies between the USGS Quads and the nautical chart coastline created some uncertainty about waterflow at stream mouths. These discrepencies were evaluated with the aid of a shaded relief representation of a USGS 1:250,000 digital elevation model, and best judgement was used for final delineation. 6. Source Information: Glacier Bay National Park and Preserve 7. Date of Source Data: VARIES 8. Scale of Source Data: 1:63,360. 9. Data Processing Description: Watershed boundaries were delineated based on field experience and 1:63,360 USGS quads. In areas where glaciers made direct observations of waterflow impossible, best professional judgement was used. The nautical chart coastline was determined to be more accurate than that portrayed in the USGS Quads, and was used to close watershed polygons. III. SPATIAL DATA ORGANIZATION INFORMATION 1. Data Structure: ___point (x,y) _X_vector(line >1 x,y) ___raster (grid cell) ___tin (3 dimensional x,y,z) ___Other__________ 2. Raster File Row: 3. Raster File Column: 4. Raster File Vertical: 5. Raster File Number of Bytes per Pixel: 6. Raster file origin_________ IV. SPATIAL REFERENCE INFORMATION 1. Map Projection Name ___Alaska Grid (Modified-Stereographic Conformal for Alaska) ___Alaska E (Alaska Series E) ___Albers Conical Equal Area (Alaska Standard Albers) ___Polar stereographic ___Lambert Azimuthal Equal Area ___Universal Transverse Mercator ___Other (please specify)_______________________ ___State plane (Coordinate System) ___Geographic Reference System (If geographic please complete coordinate units section) Geographic Coordinate Units: _X_Decimal degrees ___Degree and decimal minutes ___Degree, minutes, and decimal seconds ___Other______ ___Unknown 2. Map Projection Description: units:__Meters__________ datum:__NAD 27__________ spheriod:__CLARK 1866_______ zone:__--___________ standard parallels: northern parallel__65 degrees N________ southern parallel__55 degrees N________ central meridian:__154 degrees W_______ latitude of origin__50 degrees N______ false easting:__0__________ false northing:__0_________ V. ENTITY AND ATTRIBUTE INFORMATION 1. Attribute Labels: 2. Attribute Definition Source: VI. DISTRIBUTION INFORMATION 1. Distributor: Interrain Pacific 2. Distribution Liability: Interrain Pacific makes no express or implied warranties with respect to the character, fitness, function, accuracy, or capabilities of the information presented or the appropriateness for any users purposes. In no event will Interrain Pacific be liable for any incidental, indirect, special, consequential or other damages suffered by the user of this information or other person. 3. Standard Order Process: Data will be provided on tape or CD-ROM based on a written request. 4. Hardware media type: 8mm tape, CD-ROM. 5. File Decompression Technique: None. 6. Decompressed Data Transfer Size: VII. METADATA REFERENCE INFORMATION 1. Metadata Date: March 5, 1997 2. Metadata Contact: Interrain Pacific VIII. CONTACT INFORMATION 1. Primary Contact Person: Interrain Pacific 2. Contact Mailing Address: 1200 NW Front Ave., Suite 470A Portland, OR 97209 3. Contact Voice Telephone: (503) 226-8108 4. Contact Facsimile Telephone: (503) 226-8110 5. Contact Electronic Mail Address: interrain@igc.apc.org