Identification_Information: Citation: Citation_Information: Originator: U.S. Department of Agriculture, Natural Resources Conservation Service Publication_Date: 20070214 Title: Digital Raster Graph Mosaic for Sevier County, Tennessee Geospatial_Data_Presentation_Form: remote-sensing image Description: Abstract: The Digital Raster Graphic (DRG) is a scanned image of a US Geological Survey (USGS) standard series topographic map that includes all collar information (e.g., legend, scale bar, index map, etc.) The DRGE is a non-proprietary product of a USGS DRG in which the map collar information has been removed. Purpose: The DRGE is useful as a source or background layer in a GIS, as a means to perform quality assurance on other digital products, and as a source for the collection and revision of DLG data. The DRGE can also be merged with other digital data, e.g. DEM's or DOQ's, to produce a hybrid digital file. The removal of the collar information allows the DRGE to be edge-matched and displayed simultaneously in a Geographic Information System. These data are prepared for use by the Natural Resources Conservation Service for USDA Service Center personnel to administer agency programs. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: unknown Ending_Date: unknown Currentness_Reference: Source Map Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 240042.629530 East_Bounding_Coordinate: 307874.629530 North_Bounding_Coordinate: 4001323.861374 South_Bounding_Coordinate: 3930830.861374 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Digital Raster Graph Theme_Keyword: Digital Raster Graph Enhanced Theme_Keyword: DRG Theme_Keyword: DRGE Theme_Keyword: Topographic Map Place: Place_Keyword_Thesaurus: Counties and County Equivalents of the States of the United States and the District of Columbia (FIPS Pub 6-3) Place_Keyword: Sevier County Place_Keyword: Tennessee Place_Keyword: United States Access_Constraints: None. Use_Constraints: These data were prepared for Official Use Only by USDA employees as part of the Service Center Initiative. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Geospatial Data Branch Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service Contact_Address: Address_Type: mailing and physical address Address: Federal Center, 501 W. Felix St., Bldg 23, P.O Box 6567 City: Fort Worth State_or_Province: Texas Postal_Code: 76115 Country: USA Contact_Voice_Telephone: (817) 509-3400 Contact_Facsimile_Telephone: (817) 509-3469 Hours_of_Service: 8:00 am to 4:30 pm, Central Browse_Graphic: Browse_Graphic_File_Name: unavailable Browse_Graphic_File_Description: unavailable Browse_Graphic_File_Type: unavailable Data_Set_Credit: The original DRG was produced through an Innovative Partnership agreement between The Land Information Technology Company, Ltd., of Aurora, CO and the USGS. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: In the source data, the DRGE is an 8-bit color image that employs a color palette to ensure uniform colors throughout a particular DRG series. All DRG's within a series have the same RGB value. Logical_Consistency_Report: Not Applicable Completeness_Report: According to the USGS, the DRG is a faithfully reproduced digital image of the original source map. Some differences may be detected between the source graphic used and the DRG due to the RGB values assigned that particular color. The intent is to recreate those colors as near as possible. Data completeness for DRG files reflect content of the source graphic. Features may have been eliminated or generalized on the source graphic due to scale and legibility constraints. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The datum of the published map is retained to be consistent with other USGS digital data. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: NA Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Beartooth Mapping, Inc. Publication_Date: 2000 Publication_Time: Unknown Title: DRGE Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Source_Scale_Denominator: 24,000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: unknown Ending_Date: unknown Source_Currentness_Reference: publication date Source_Citation_Abbreviation: DRGE Source_Contribution: The DRG source map imagery was processed using the Spatial Analyst Extension to ArcView 3.1 (ESRI, Inc). The map collar was removed and portions of adjacent quadrangles were appended to the input image to produce a UTM rectangle output. DRGE images from the same map series (large, intermediate, and small scale) were processed by UTM zone to produce seamless output imagery within each Zone. The output ArcView Grid was converted to a TIFF 6.0 / GeoTIFF 1.0 image using the GridIO API (ESRI, Inc.), LibTiff Library (Copyright 1988-1998 Sam Leffler, 1991-1998 Silicon Graphics, Inc) and LibGeoTiff Library. Additional information about DRGE imagery can be obtained from: Beartooth Mapping, Inc. PO Box 2075 Red Lodge, MT 59068 Telephone: (406) 446-1007 Email: info@beartoothmaps.com Process_Step: Process_Description: Enhanced Digital Raster Graphics (DRGE) are used to create mosaics. All DRGE's for the area of interest, typically a county, are processed using geo-referencing information from the input images to create a consolidated MrSID image. The input images are in GeoTIFF format. The mosaic is compressed to a ratio of about 1:20 to save on storage requirements and to accelerate computer processing and display. All DRGE's must be in the same UTM zone for MrSID Version 1.3 software to create a mosaic. In areas split by a UTM zone, DRGE's in the lesser zone are reprojected to the dominant UTM zone using ArcInfo, ERDAS Imagine or similar software Source_Used_Citation_Abbreviation: DRGE Process_Date: 20070214 Source_Produced_Citation_Abbreviation: MrSID Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 70493 Column_Count: 67832 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 17 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -81.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 1.000000 Ordinate_Resolution: 1.000000 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: In the source TIFF image (DRGE), each raster entity or pixel contains a color index from 0 through 12 referencing a color palette of RGB values from 0 through 255 in which the standard colors used in the DRGE are defined. The DRGE Color Palette (Digital Number, Color, Red, Green, Blue), 0 Black 0 0 0, 1 White 255 255 255, 2 Blue 0 151 164, 3 Red 203 0 23, 4 Brown 131 66 37, 5 Green 201 234 157, 6 Purple 137 51 128, 7 Yellow 255 234 0, 8 Light Blue 167 226 226, 9 Light Red 255 184 184, 10 Light Purple 218 179 214, 11 Light Grey 209 209 209, 12 Light Brown 207 164 142. Essentially, the compressed mosaic contains three bands resulting in six colors when red, blue, and green are are used for image display. The colors represent the following: Contours - brown, Hydrography - blue, Public Land Survey System and other surveys - red, Updates - purple/magenta, Miscellaneous - black, and Vegetation - green. Entity_and_Attribute_Detail_Citation: U.S. Department of the Interior, U.S. Geological Survey, 1997, Standards for Digital Raster Graphs: Reston, VA. Softcopy in Adobe Acrobat Portable Document File (PDF) format: http://rmmcweb.cr.usgs.gov/public/nmpstds/drgstds.html Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Geospatial Data Branch Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center Contact_Address: Address_Type: mailing and physical address Address: Federal Center, 501 W. Felix St., Bldg. 23, P.O. Box 6567 City: Fort Worth State_or_Province: Texas Postal_Code: 76115 Country: USA Contact_Voice_Telephone: (817) 509-3400 Contact_Facsimile_Telephone: (817) 509-3469 Hours_of_Service: 8:00 am to 4:30 pm, Central Resource_Description: Digital Raster Graph Mosaic Distribution_Liability: Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the Agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture prohibits discrimination in its programs on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, and marital or familial status. (Not all prohibited bases apply to all programs.) Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: MrSID File_Decompression_Technique: no compression applied Transfer_Size: 684.025 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://datagateway.nrcs.usda.gov Offline_Option: Offline_Media: CD-ROM Recording_Capacity: Recording_Density: 650 Recording_Density_Units: MB Recording_Format: ISO 9660, Level 2, Mode 1 Fees: $50 per CD-ROM Available_Time_Period: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: unknown Ending_Date: unknown Metadata_Reference_Information: Metadata_Date: 20070214 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center Contact_Person: Geospatial Data Branch Contact_Address: Address_Type: mailing and physical address Address: Federal Center, 501 W. Felix St., Bldg. 23, P.O. Box 6567 City: Fort Worth State_or_Province: Texas Postal_Code: 76115 Country: USA Contact_Voice_Telephone: (817) 509-3400 Contact_Facsimile_Telephone: (817) 509-3469 Hours_of_Service: 8:00 am to 4:30 pm, Central Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile