DRG - USGS 1:250,000 Topographic Map
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: USGS
- Publication_Date: Unknown
- Title: DRG - USGS 1:250,000 Topographic Map
- Geospatial_Data_Presentation_Form: remote-sensing image
- Publication_Information:
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- Publication_Place: Palatka, Florida
- Publisher: St. Johns River Water Management District
- Online_Linkage: \\WINDEX\SJR\gislib\scanmaps\drg250\coll_off\c26080_hpgn.tif
- Description:
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- Abstract:
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The digital raster graphics (DRG) are scanned images of the U.S. Geological Survey 1-degree by 2-degree topographic map that have been geo-referenced. The source scale for the images in this dataset is 1:250,000
- Purpose:
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DRG may be used to collect, review, and revise other digital data, especially, DLGs.
- Supplemental_Information:
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The image inside the map neatline is georeferenced to the surface of the earth. When the DRG is combined with other digital products, such as digital orthophoto quarter quadrangles (DOQQs) or digital evelvation models (DEMs), the resulting image provides additional visual information for the extraction and revision of base cartographic information.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: unknown
- Currentness_Reference: publication date
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -82.008316
- East_Bounding_Coordinate: -79.990761
- North_Bounding_Coordinate: 27.004111
- South_Bounding_Coordinate: 25.997279
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
- Theme_Keyword: Digital Raster Graphic (DRG)
- Theme_Keyword: imageryBaseMapsEarthCover
- Place:
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- Place_Keyword_Thesaurus: SJRWMD-GIS Metadata Thesaurus
- Place_Keyword: Florida
- Place_Keyword: St. Johns River Water Management District
- Place_Keyword: Counties
- Place_Keyword: Alachua County
- Place_Keyword: Baker County
- Place_Keyword: Bradford County
- Place_Keyword: Brevard County
- Place_Keyword: Clay County
- Place_Keyword: Duval County
- Place_Keyword: Flagler County
- Place_Keyword: Indian River County
- Place_Keyword: Lake County
- Place_Keyword: Marion County
- Place_Keyword: Nassau County
- Place_Keyword: Okeechobee County
- Place_Keyword: Orange County
- Place_Keyword: Osceola County
- Place_Keyword: Polk County
- Place_Keyword: Putnam County
- Place_Keyword: Seminole County
- Place_Keyword: St. Johns County
- Place_Keyword: Volusia County
- Access_Constraints: None
- Use_Constraints:
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The St. Johns River Water Management District prepares and uses information for its own purposes and this information may not be suitable for other purposes. This information is provided "as is". Further documentation of this data can be obtained by contacting: St. Johns River Water Management District, Division of Integrated Application Systems, Post Office Box 1429, Palatka, Florida, 32178-1429, (386) 329-4500.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: St. Johns River Water Management District
- Contact_Position: GIS Data Manager, Information Resources Department
- Contact_Address:
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- Address_Type: mailing address
- Address: P.O Box 1429
- City: Palatka
- State_or_Province: FL
- Postal_Code: 32178-1429
- Contact_Voice_Telephone: (386) 329-4500
- Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
- Hours_of_Service: 0800 - 1700 EST
- Browse_Graphic:
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- Browse_Graphic_File_Name: <http://intraweb/gisdoc/cf/smms0/gifimages/drg250.gif>
- Browse_Graphic_File_Type: GIF
- Native_Data_Set_Environment:
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Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.2.0.700
- Data_Quality_Information:
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- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
- Lineage:
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- Process_Step:
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- Process_Description:
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The USGS process to produce the DRG begins with the scanning of a paper 7.5-minute topographic map. A standard quadrangle is scanned at a resolution of 500 dots per inch results in a red-green-blue (RGB) file of up to 300 megabytes. The RGB file is converted to tagged image file format (TIFF), viewed, and the position of each of the sixteen 2.5-minute grid ticks on the image is collected. Processing software uses these coordinates to rectify and georeference the image to the UTM ground coordinates. A piecewise linear transformation completes the georeferencing.
- Source_Used_Citation_Abbreviation: C:\DOCUME~1\coman\LOCALS~1\Temp\xml17F.tmp
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: V:\gislib7\drgs_usgs\drg100\coll_off\drg100-metadata.xml
- Process_Step:
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- Process_Description: Metadata imported.
- Source_Used_Citation_Abbreviation: V:\gislib7\drgs_usgs\drg24\drg24k_metadata.xml
- Spatial_Data_Organization_Information:
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- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
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- Raster_Object_Type: Pixel
- Row_Count: 4375
- Column_Count: 7881
- Vertical_Count: 1
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Planar:
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- Map_Projection:
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- Map_Projection_Name: Transverse Mercator
- Transverse_Mercator:
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- 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:
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- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
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- Abscissa_Resolution: 25.400001
- Ordinate_Resolution: 25.400001
- Planar_Distance_Units: meters
- Geodetic_Model:
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- Horizontal_Datum_Name: D_North_American_1983_HARN
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137.000000
- Denominator_of_Flattening_Ratio: 298.257222
- Vertical_Coordinate_System_Definition:
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- Altitude_System_Definition:
- Entity_and_Attribute_Information:
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- Detailed_Description:
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- Entity_Type:
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- Entity_Type_Label: Band_1
- Attribute:
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- Attribute_Label: ObjectID
- Attribute_Definition: Internal feature number.
- Attribute_Definition_Source: ESRI
- Attribute_Domain_Values:
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- Unrepresentable_Domain:
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Sequential unique whole numbers that are automatically generated.
- Attribute:
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- Attribute_Label: Value
- Attribute:
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- Attribute_Label: Red
- Attribute:
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- Attribute_Label: Green
- Attribute:
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- Attribute_Label: Blue
- Attribute:
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- Attribute_Label: Opacity
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Organization_Primary:
-
- Contact_Organization: St. Johns River Water Management District
- Contact_Position: GIS Data Manager, Information Resources Department
- Contact_Address:
-
- Address_Type: mailing address
- Address: Post Office Box 1429
- City: Palatka
- State_or_Province: Florida
- Postal_Code: 32178-1429
- Country: USA
- Contact_Voice_Telephone: (386) 329-4500
- Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
- Hours_of_Service: 0800-1700 EST
- Resource_Description: Downloadable Data
- Distribution_Liability:
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The St. Johns River Water Management District prepares and uses information for its own purposes and this information may not be suitable for other purposes. This information is provided "as is". Further documentation of this data can be obtained by contacting: St. Johns River Water Management District, Division of Integrated Application Systems, Post Office Box 1429, Palatka, Florida, 32178-1429, (386) 329-4500.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: ARCE
- Format_Version_Number: v8.2
- Format_Specification: ARC/INFO Export Format - UNIX Compression
- File_Decompression_Technique: Winzip
- Transfer_Size: 32.918
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name: <http://www.sjrwmd.com>
- Offline_Option:
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- Offline_Media: CD-ROM
- Fees: $40 per CD
- Ordering_Instructions:
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There is no charge for downloading data from the DISTRICT web site at <http://www.sjrwmd.com>. Data can be orded on CD-ROM as instructed on the web site.
- Turnaround: 10 working days
- Custom_Order_Process:
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1. Use the DISTRICT website: <http://www.sjrwmd.com> to download data, or
2. Call or email to organizations listed under Distributor.
Spatial data are in ARC/INFO interchange formats.
- Technical_Prerequisites:
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Internet access /
Unzip, Winzip /
To import coverage: ESRI ArcInfo workstation, ArcView 3.2X Import 7.1 Utility, or ArcToolBox. /
To use coverage: ESRI ArcInfo, ArcView, ArcGIS 8.2, or ArcExplorer; AutoCAD 2002 Map or Land Development Desktop.
- Metadata_Reference_Information:
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- Metadata_Date: 20021205
- Metadata_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: St. Johns River Water Management District
- Contact_Person: REQUIRED: The person responsible for the metadata information.
- Contact_Position: GIS Data Manager, Information Resources Department
- Contact_Address:
-
- Address_Type: mailing address
- Address: Post Office Box 1429
- City: Palatka
- State_or_Province: Florida
- Postal_Code: 32178-1429
- Country: USA
- Contact_Voice_Telephone: (386) 329-4500
- Contact_Electronic_Mail_Address: gis_support@sjrwmd.com
- Hours_of_Service: 0800-1700 EST
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Extensions:
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- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
- Metadata_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.7.33 on Mon Mar 01 09:01:44 2004