Identification_Information: Citation: Citation_Information: Originator: Briere, P. R., Van Arsdall, C., Foster, A.M., Smith III, T.J., and Jones, John W. Publication_Date: Unknown Title: 5441_geo.tif Geospatial_Data_Presentation_Form: raster digital data Other_Citation_Details: This digital map series was produced through an innovative partnership agreement between Johnson Controls World Services and the USGS. Online_Linkage: http://sofia.er.usgs.gov/publications/ofr/02-204/html/location.html Description: Abstract: Approximately 30 scanned T-sheets have been georeferenced in the Florida Everglades region. These georeferenced maps were combined, resulting in a single, georeferenced mosaic also available on this CD-ROM. Due to space constraints, the georeferenced files (ex. 4371_geo.tif) are compressed. Uncompressed, unreferenced images (ex. t-4371.tif) included on the CD are useful for quick access to the data via many basic imaging software packages. The T-sheets are detailed survey maps issued by the National Oceanic and Atmospheric Administration's (NOAA) National Ocean Service (NOS), formerly the U.S. Coast and Geodetic Survey. These maps were produced to provide coastlines for use on navigation charts and contain survey marker locations, lines of latitude and longitude, and a representation of vegetation inland from the coast. Most of the South Florida maps on this CD are at a 1:20,000 scale, excepting 3 maps at 1:10,000 in the Sanibel Island vicinity not included as part of the digital mosaic. The maps are based on aerial photography from 1925 to 1935. The maps were published upon completion, some as early as 1931 and others based on supplemental survey data completed in October, 1937. Purpose: The Florida Integrated Science Center (FISC), a center of the U.S. Geological Survey's (USGS) Biological Resources Division (BRD) has created digital versions of existing topographic survey (T-sheets) for the Florida Everglades region. These digital files are available on this CD-ROM in a manner designed to facilitate access to the product by those intending to integrate the data with other spatial data, specifically those interested in the impacts of global climate change and land use change on coastal ecosystems. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1931 Ending_Date: 1937 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -80.698720 East_Bounding_Coordinate: -80.490844 North_Bounding_Coordinate: 25.274728 South_Bounding_Coordinate: 25.109597 Keywords: Theme: Theme_Keyword_Thesaurus: "none" Theme_Keyword: Topographic sheet Theme_Keyword: digital landcover map Place: Place_Keyword_Thesaurus: Department of Commerce, 1977, Countries, Place_Keyword: Florida Everglades Place_Keyword: U.S. Place_Keyword: South Florida Temporal: Temporal_Keyword: 1930s Access_Constraints: None Use_Constraints: Not to be used for navigation Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS -Biological Resources Division - Florida Integrated Science Center Contact_Person: Ann Foster Contact_Address: Address_Type: physical address Address: 7920 NW 71st Street City: Gainesville State_or_Province: FL Postal_Code: 32653 Country: USA Contact_Voice_Telephone: 352-264-3565 Hours_of_Service: 9am-5pm EST Browse_Graphic: Browse_Graphic_File_Type: TIFF Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.1.1.649 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Features may have been eliminated or generalized on the source graphic due to scale and legibility constraints. Logical_Consistency_Report: Not Applicable Completeness_Report: 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: While the datum of the published map is retained to be consistent with other USGS digital data, this image is cast on the UTM and may be INCONSISTENT with the credit note on the image collar. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Refer to the T-sheet original map collar for information about vertical positional accuracy. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: US Coast and Geodetic Survey Publication_Date: 1931-1937 Publication_Time: Unknown Title: Topographic Map Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Topographic Maps Publication_Information: Publisher: US Coast and Geodetic Survey Source_Scale_Denominator: 1:20000 Type_of_Source_Media: paper Source_Citation_Abbreviation: NOAA/NOS (formerly US Coast an Geodetic Survey) Source_Contribution: The source map is scanned to produce the digital file that has been georeferenced. Process_Step: Process_Description: The process step describes, in general, the process used in the production of standard digital data sets. 1. Production of a digital file begins with the scanning of a paper topographic map (t-sheet) with the output file running between .5 to 5MB. 2. The raw scan file is then transformed and georeferenced using UTM coordinates converted from latitude and longitude lines on the map sheets. 3. The image is resampled using a nearest neighbor algorithm producing an output between 25-50 MB. 4. The image file is converted to TIFF and reduced by compressing the file into packbits (PKZIP). 5. All resampled digital files are checked to ensure that they are geometrically conistent with normal map presentation. Process_Date: Novmber 2001 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 18222 Column_Count: 20890 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 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.400000 Denominator_of_Flattening_Ratio: 294.978698 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Contact_Address: Address_Type: physical address City: Reston State_or_Province: VA Country: USA Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Specification: GEOTIFF File_Decompression_Technique: PKZIP Transfer_Size: 45.438 Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Compatibility_Information: compatible with Windows95,98,2000,NT,ME and Macintosh. data usable by other systems Available_Time_Period: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2002 Ending_Date: unknown Metadata_Reference_Information: Metadata_Date: 20011204 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Foster, A. Contact_Organization: Contact_Position: Geographer Contact_Address: Address_Type: physical address Address: 7920 NW 71st Street City: Gainesville State_or_Province: FL Postal_Code: 32653 Country: U.S. Contact_Voice_Telephone: 352-264-3565 Hours_of_Service: 9am - 5pm 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: Profile_Name: ESRI Metadata Profile Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html