Identification_Information: Citation: Citation_Information: Originator: James R. Anderson, Ernest E. Hardy, John T. Roach, and Richard E. Witmer Publication_Date: 1976 Title: A Land Use and Land Cover Classification System for Use with Remote Sensor Data Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Professional Paper 964 Online_Linkage: ftp://nmdpow9.er.usgs.gov/public/lulcpp964 Citation_Information: Originator: U.S. Geological Survey Publication_Date: 1990 Title: USGeoData 1:250,000 and 1:100,000 Scale Land Use and Land Cover and Associated Maps Digital Data Publication_Information: Publication_Place: Reston, Virginia Publisher: U.S. Geological Survey Online_Linkage: ftp://nmdpow9.er.usgs.gov/public/lulcguide Description: This is land use/ land cover digital data collected by USGS and converted to ARC/INFO by the EPA. This data is useful for environmental assessment of land use patterns with respect to water quality analysis, growth management, and other types of environmental impact assessment. Use may be limited due to currency. Abstract: Land use and land cover data LU/LC collected by the USGS NMD is useful for environmental assessment of land use patterns with respect to water quality analysis, growth management, and other types of environmental impact assessment. Data are meant to be used by quadrangle, or among adjacent quadrangles where temporally contiguous. Can be used in any geographic application where intermediate scale land use data are appropriate and the dates are representative. Each quadrangle of land use data has a different representative date. Date ranges from mid 1970s to early 1980s are common. When joined togethr these quadrangles will not likely match along edges due to differences in interpretation and time coverage. Edges of each map file were manually digitized and may not join neighboring maps. If GIRASNEAT program hasbeen applied (see LOG at end) then edges have been mathematically recalculated to join without overlap or gaps in coverage with adjacent maps. The GIRAS series can include several themes of spatial data. The most common, described here, is the land use and land cover data. Land use was mapped and coded using the Anderson classification system (Anderson others,1976) which is a hierarchical system of general (level 1) to more specific (level 2) characterization. Some agencies have taken this to a level 3 classification -- but this has not been done in the GIRAS series. The salient attribute managed for this polygon data set in the polygon attribute table (PAT) is the column named LUCODE containing the Anderson level 2 classification. The first digit represents the level one value and the second digit (ones place) represents the subdivision of the level 1 or level 2 value. The Anderson land use codes are: 1 Urban or built-up land 11 Residental 12 Commercial and services 13 Industrial 14 Transportation, communication, utilities 15 Industrial and commercial complexes 16 Mixed urban or built-up land 17 Other urban or built-up land 2 Agricultural land 21 Cropland and pasture 22 Orchards, groves, vineyards, nurseries, and ornamental horticultural 23 Confined feeeding operations 24 Other agricultural land 3 Rangeland 31 Herbaceous rangeland 32 Shrub and brush rangeland 33 Mixed rangeland 4 Forest land 41 Deciduous forest land 42 Evergreen forest land 43 Mixed forest land 5 Water 51 Streams and canals 52 Lakes 53 Reservoirs 54 Bays and estuaries 6 Wetland 61 Forested wetland 62 Nonforested wetland 7 Barren land 71 Dry salt flats 72 Beaches 73 Sandy areas not beaches 74 Bare exposed rock 75 Strip mines, quarries, gravel pits 76 Transitional areas 8 Tundra 81 Shrub and brush tundra 82 Herbaceous tundra 83 Bare ground 84 Wet tundra 85 Mixed tundra 9 Perennial snow or ice 91 Perennial snowfields 92 Glaciers GIRAS files are received by the USGS in 9-track ASCII format, one file per quadrangle. Files are loaded onto the hard disk of the computer from tape. Data are then processed with the GIRASARC2 program written in Arc Macro Language, part of the ARC/INFO geographic information system. This program was written by the USGS Water Resources Division to process the data into a consistent ARC/INFO format with a minimum of intervention. This GIRASARC2 AML program does the following: -- Converts the GIRAS data to ARC/INFO -- Reconstructs topology, creating line and polygon features -- Transforms the coverage into UTM and then, optionally into Albers Equal Area, using the registration points listed in the GIRAS file -- Notes transformation error, writing it to the bottom of the narrative file. -- Generates a synthetic neatline based on the mathematically-determined corners of the map -- Loads available documentation into a series of companion documentation files with each data set. -- Data may then be clipped against or extended to the synthetic neatline for ease in merging adjacent maps at a later date A GIRASNEAT AML program does the following: --standardize processing of coverages after use of girasarc2 AML, --clips in-cover with neatline cover, --dissolves polygon boundaries between polygon with the same item attribute --snaps exterior arcs to the arcs of the neatline cover with a tolerance of 40 meters Original conversion from GIRAS to ARC (see LOG for date and user ID) Data are reviewed visually by the user responsible for executing the GIRASARC2 program. The GIRASARC2 and GIRASNEAT programs were executed in Arc Macro Language to create this data set. The DOCUMENT AML (version 1.0) was used to manage the documentation and create this metadata file. Purpose: To convert the GIRAS data into EPA's standard Geographic Information System (GIS) called ARC/INFO software from ESRI. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1977 Ending_Date: early 1980s Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -125.0000 East_Bounding_Coordinate: -66.0000 North_Bounding_Coordinate: 50.0000 South_Bounding_Coordinate: 24.0000 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: land Theme_Keyword: landuse Theme_Keyword: landcover Theme_Keyword: GIRAS Theme_Keyword: digital Theme_Keyword: geographic Place: Place_Keyword_Thesaurus: none Place_Keyword: United States (US) (USA) Place_Keyword: conterminous United States (CONUS) Access_Contraints: none Use_Contraints: none. Acknowledgement of the U.S. Environmental Protection Agency would be appreciated. Browse_Graphic: Browse_Graphic_File_Name: http://www.epa.gov/nsdi/quadsusa.gif Browse_Graphic_File_Description: This graphic shows the outline of CONUS and the outline of the 450 plus 1:250,000 scale (1 degree latitude by 2 degrees longitude) land use/land cover quadrangles. Browse_Graphic_File_Type: GIF Browse_Graphic_File_Name: http://www.epa.gov/nsdi/thief.gif Browse_Graphic_File_Description: This graphic shows the outline of the land use/land cover classification polygons for the Thief River Falls quadrangle in northwestern Minnesota. Browse_Graphic_File_Type: GIF Browse_Graphic_File_Name: http://www.epa.gov/nsdi/lucode.gif Browse_Graphic_File_Description: This graphic shows the outline of the land use/land cover classification polygons and the classification code identifying each polygon. Browse_Graphic_File_Type: GIF Native_Data_Set_Environment: GIRAS files were received from the USGS on 9-track ASCII formatted tape, one file per quadrangle. These tape files were transferred to an IBM390 computer with several gigabytes of magnetic disk. Each quadrangle file was then transferred using file transfer protocol (FTP) on the Internet to a Data General 5240 UNIX server to be processed. The processing was done with the GIS software ARC/INFO version 6. The processed datasets were then FTP transferred to a Data General 9500 server for public access using a WWW server Mosaic version 2.1 software. Data_Quality_Information: Logical_Consistency_Report: Polygon and chain-node topology present. Completeness_Report: See Data Set Description Section Lineage: Example of the GIS process for the Kenora Quadrangle. Process_Step: Process_Description: GIRASARC KENORA TMPCOV Process_Date: 19930426 Process_Time: 1124 Process_Description: BUILD TMPCOV POLY Process_Date: 19930426 Process_Time: 1124 Process_Description: CREATE KENLL Process_Date: 19930426 Process_Time: 1124 Process_Description: PROJECT COVER KENLL /EXDISK2/ED/GIRASNEW/WORK/KEN Process_Date: 19930426 Process_Time: 1125 Process_Description: TRANSFORM TMPCOV /EXDISK2/ED/GIRASNEW/WORK/KEN Process_Date: 19930426 Process_Time: 1125 Process_Description: RENAME KEN KENU Process_Date: 19930426 Process_Time: 1125 Process_Description: PROJECT COVER KENU KEN Process_Date: 19930426 Process_Time: 1126 Process_Description: BUILD KEN POLY Process_Date: 19930426 Process_Time: 1126 Process_Description: GIRASDOCUMENT KEN ED Process_Date: 19930426 Process_Time: 1127 Process_Description: GIRASARC2 KENORA KEN ALBERS -96 00 00 ED Process_Date: 19930426 Process_Time: 1127 Process_Description: CLIP KEN KENNL XXCOV POLY 1 Process_Date: 19930426 Process_Time: 1133 Process_Description: GIRASARC KENORA TMPCOV Process_Date: 19930426 Process_Time: 1124 Process_Description: BUILD TMPCOV POLY Process_Date: 19930426 Process_Time: 1124 Process_Description: CREATE KENLL Process_Date: 19930426 Process_Time: 1124 Process_Description: PROJECT COVER KENLL /EXDISK2/ED/GIRASNEW/WORK/KEN Process_Date: 19930426 Process_Time: 1125 Process_Description: TRANSFORM TMPCOV /EXDISK2/ED/GIRASNEW/WORK/KEN Process_Date: 19930426 Process_Time: 1125 Process_Description: RENAME KEN KENU Process_Date: 19930426 Process_Time: 1125 Process_Description: PROJECT COVER KENU KEN Process_Date: 19930426 Process_Time: 1126 Process_Description: BUILD KEN POLY Process_Date: 19930426 Process_Time: 1126 Process_Description: GIRASDOCUMENT KEN ED Process_Date: 19930426 Process_Time: 1127 Process_Description: GIRASARC2 KENORA KEN ALBERS -96 00 00 ED Process_Date: 19930426 Process_Time: 1127 Process_Description: CLIP KEN KENNL XXCOV POLY 1 Process_Date: 19930426 Process_Time: 1133 Process_Description: COPY XXCOV LKE49094 Process_Date: 19930426 Process_Time: 1133 Process_Description: BUILD LKE49094 LINE Process_Date: 19930426 Process_Time: 1134 Process_Description: ARCEDIT /EXDISK2/ED/GIRASNEW/WORK/LKE49094 Process_Date: 19930426 Process_Time: 1140 Process_Description: BUILD LKE49094 POLY Process_Date: 19930426 Process_Time: 1140 Process_Description: GIRASNEAT KEN LKE49094 KENNL # SNAP ED Process_Date: 19930426 Process_Time: 1140 Spatial_Reference_Information: Horizonal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Albers Conical Equal Area Map_Projection_Parameters: 1st standard parallel is 29 degrees, 30 minutes, 0 seconds 2nd standard parallel is 45 degrees, 30 minutes, 0 seconds central meridian is -96 degrees, 0 minutes, 0 seconds latitude of projection origin is 23 degrees, 0 minutes, 0 seconds false easting is 0 meters false northing is 0 meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: name.PAT where "name" is a user supplied character string. Entity_Type_Definition: Standard ARC/INFO polygon attribute table. Entity_Type_Definition_Source: GIRAS digital data Attribute: Attribute_Label: AREA Attribute_Definition: Area of polygons Attribute_Definition_Source: computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: positive real number almost zero but not zero Range_Domain_Maximum: positive real number but no larger than the area of the quadrangle in square meters. Attribute_Units_of_Measure: square meters Attribute_Label: PERIMETER Attribute_Definition: Perimeter of polygons Attribute_Definition_Source: computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: positive real number almost zero but not zero Range_Domain_Maximum: positive real number but no larger than the perimeter of the quadrangle in meters. Attribute_Units_of_Measure: meters Attribute_Label: name# where "name" is user supplied character string Attribute_Definition: Internal database feature number Attribute_Definition_Source: computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: zero Range_Domain_Maximum: unique positive integer Attribute_Units_of_Measure: none Attribute_Label: name-ID where "name" is user supplied character string Attribute_Definition: User assign polygon identification number Attribute_Definition_Source: computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: one Range_Domain_Maximum: unique positive integer Attribute_Units_of_Measure: none Attribute_Label: LUCODE Attribute_Definition: Land use classification code number Attribute_Definition_Source: GIRAS Attribute_Domain_Values: Codeset_Domain: Codeset_Name: Anderson land use classification codes Codeset_Source: see Publication_Information U.S.G.S. paper 964 Distribution_Information: Standard_Transfer_Options: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE File_Decompression_Technique: GNU utility gzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Adress: Network_Resource_Name: Fees: The online option is available at no charge. Metadata_Reference_Information: Metadata_Date: 7/11/96 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Edward Partington Contact_Organization: U.S. Environmental Protection Agency Contact_Organization_Primary: Contact_Position: Computer Specialist Contact Address: Address_Type: mailing address Address: mailcode 3408, 401 M St. SW City: Washington, DC State: DC Postal_Code: 20460 Country: USA Contact_Voice_Telephone: (202) 260-3106 Contact_Facsimile_Telephone: (202) 401-8390 Contact_Electronic_Mail_Address: partington.ed@epamail.epa.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: 6/8/94