USGS Digital Raster Graphics - South Florida Mosaic 1:250,000

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS)

Originator: Land Boundary Information System (LABINS)

Originator: Florida Coastal Everglades LTER

Publication_Date: 2003

Title: USGS Digital Raster Graphics - South Florida Mosaic 1:250,000

Geospatial_Data_Presentation_Form: raster digital data

Other_Citation_Details:

USGS Digital Raster Graphics -South Florida Mosaic 1:250,000 refers to a mosaic of DRGs . The original DRGs were created by the USGS and redistributed by LABINS. The FCE LTER downloaded the DRGs from LABINS and created the south Florida DRG mosaic.

Online_Linkage: <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Description:

Abstract:

This dataset is mosaic of 1:250,000 USGS Digital Raster Graphics(DRGs) for south Florida. A digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey (USGS) topographic map.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.006706

East_Bounding_Coordinate: -79.992948

North_Bounding_Coordinate: 26.896625

South_Bounding_Coordinate: 24.184366

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: DRG

Theme_Keyword: digital raster graphic

Theme_Keyword: topography

Theme_Keyword: hydrography

Theme_Keyword: cities

Theme_Keyword: counties

Theme_Keyword: rivers

Theme_Keyword: roads

Theme_Keyword: USGS

Place:

Place_Keyword: south Florida

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey EROS Data Center

Contact_Position: Customer Services Representative

Contact_Address:

Address_Type: mailing and physical address

Address: U.S. Geological Survey EROS Data Center

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198-0001

Country: USA

Contact_Voice_Telephone: 1-888-275-8747

Contact_Voice_Telephone: +001 605-594-6151

Contact_TDD/TTY_Telephone: +001 605-594-6933

Contact_Facsimile_Telephone: +001 605-594-6589

Contact_Electronic_Mail_Address: custserv@usgs.gov

Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT

Contact_Instructions:

Please contact the USGS for original DRGs. Online Ordering: Once you have filled out and submitted the online ordering form found at <http://earthexplorer.usgs.gov>, it is forwarded to Customer Services at the U.S. Geological Survey's EROS Data Center via the Earth Explorer system. The EROS Data Center uses a secure credit card server that will encrypt your sensitive information and pass it from your browser to the Data Center's web server. Mail Ordering: First obtain the ordering information from Earth Explorer. Mail this information, along with your payment (check or purchase/money order), to any Earth Science Information Center. A full list of these offices can be found at: <http://ask.usgs.gov/sils_index.html>

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Land Boundary Information System (LABINS)

Contact_Address:

Address_Type: mailing and physical address

Address: Florida Resource and Environmental Analysis Center

Address: Technical Assistance Program

Address: C2200 University Center

Address: Florida State University

City: Tallahassee

State_or_Province: FL

Postal_Code: 32306-2641

Country: USA

Contact_Voice_Telephone: 850-644-2305

Contact_Facsimile_Telephone: 850-644-7360

Contact_Electronic_Mail_Address: labins@admin.fsu.edu

Contact_Instructions:

Florida USGS DRGs can be downloaded from LABINS at <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Logical_Consistency_Report:

The USGS DRG is produced with the intention of replicating as close as possible the original source map. Users of the DRG will note, however, that a certain amount of "noise" can be discerned when small areas are blown up or viewed under zoomed-in conditions. This noise is in the form of random specks or pixels of color and halos due to any number of factors, such as the quality of the source, the use of screens and patterns on the litho, and the unevenness of ink due to saturation and absorption. Discontinuities or breaks in linear features may also be present and are due to improper calibration or usage of the scanner, the condition of the source, and resampling. Descreening, quantizing, and noise filtering are methods used to reduce noise, which, besides creating a more aesthetically pleasing image, have the added benefit of reducing the size of the image file. Removal of lithographic screen patterns is preferred but not required.

Completeness_Report:

Image completeness is checked by visually inspecting a sampling of DRGs. Each selected DRG is examined for gaps (missing data) in the main body of the map, the map collar, the overedge areas, and any insets.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

A random sampling of DRGs is accuracy tested. The accuracy test is performed by comparing the positions of UTM grid intersections on the source graphic against the corresponding location on the digital image. A visual inspection determines whether those coordinates fall within the pixels that define a grid tick. DRGs duplicate the horzontal accuracy of its source.

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Value: 1

Horizontal_Positional_Accuracy_Explanation:

DRGs retain the horizontal accuracy of the source maps. Most USGS printed maps contain the National Map Accuracy Standards (NMAS) note in the collar area. The NMAS states that for maps on publication scales of 1:20,000 or smaller, no more than 10 percent of the points tested shall be in error by more than 1/50 inch measured on the publication scale. Test points must be "well-defined", that is, easily visible or recoverable on the ground. For DRGs this accuracy statement applies only to that area of the DRG that falls within the neatline of the source map (excluding inset areas). Overedge areas falling outside the transformation boundary area (the map neatline) can exhibit anomalies or discrepancies. These anomalies also will appear in the map inset areas and in the map collar. For maps without the NMAS note, the horizontal accuracy is unknown. However, the DRG will retain the accuracy of the source map.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: Unknown

Title: USGS Topographic maps

Geospatial_Data_Presentation_Form: maps

Source_Scale_Denominator: 250000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1979

Ending_Date: 1979

Source_Citation_Abbreviation: USGS Topographic maps

Source_Contribution:

The standard area of coverage of a DRG is the entire area printed on a USGS standard series topographic map including the map collar, any overedge areas, and insets.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: Unknown

Title: USGS Digital Raster Graphics

Geospatial_Data_Presentation_Form: raster digital data

Online_Linkage: <http://topomaps.usgs.gov/drg/>

Source_Scale_Denominator: 250000

Source_Citation_Abbreviation: USGS Digital Raster Graphics

Source_Information:

Source_Citation:

Citation_Information:

Originator: Land Boundary Information System (LABINS)

Title: Digital Raster Graphic UTM - NAD27 - Collars Intact

Geospatial_Data_Presentation_Form: raster digital data

Online_Linkage: <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Source_Scale_Denominator: 250000

Source_Citation_Abbreviation: Digital Raster Graphic UTM - NAD27 - Collars Intact

Process_Step:

Process_Description:

Production of a DRG begins with the scanning of a paper 7.5-minute topographic map (map1) on a high-resolution scanner. Scanning resolutions range from 500-1,000 dpi with an output file of 160-300 Mb in size. Removal of screens (descreening) and color quantization to reduce the number of colors also takes place during the scanning phase.

The raw scan file is then transformed and georeferenced using UTM coordinates of the sixteen 2.5-minute grid ticks, which are obtained using the in-house produced program COORDAT and stored in a ground control file. Those sixteen 2.5-minute ticks are interactively visited and assigned their respective UTM coordinates. The USGS program XSHAPES4 then performs a piecewise linear rubber sheet transformation.

An output resolution of 2.4 meters (8.2 feet) is chosen to resample the file to 250 dpi. The image file is converted to a TIFF 6.0 image and further reduced by converting the file to a run length encoded PackBits compression (type 32773).

The color palette of the compressed DRG is then standardized by replacing the original RGB values assigned during the scanning process with standard RGB value combinations using the in-house produced TIFFREMAP program.

Source_Used_Citation_Abbreviation: USGS Topographic maps

Process_Date: 1988

Source_Produced_Citation_Abbreviation: USGS Digital Raster Graphics

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Customer Services Representative

Contact_Organization: Rolla-ESIC U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 1400 Independence Rd., MS231

City: Rolla

State_or_Province: MO

Postal_Code: 65401-2602

Country: USA

Contact_Electronic_Mail_Address: esic@mcmcmail.usgs.gov

Contact_Instructions: <http://topomaps.usgs.gov/drg/>

Process_Step:

Process_Description:

Digital Raster Graphics for the state of Florida were obtained from the USGS and made available on the LABINS website as TIFFs with TFWs (UTM, NAD27, collars intact).

Source_Used_Citation_Abbreviation: USGS Digital Raster Graphics

Source_Produced_Citation_Abbreviation: Digital Raster Graphic UTM - NAD27 - Collars Intact

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Land Boundary Information System (LABINS)

Contact_Address:

Address_Type: mailing and physical address

Address: Florida Resource and Environmental Analysis Center

Address: Technical Assistance Program

Address: C2200 University Center

Address: Florida State University

City: Tallahassee

State_or_Province: FL

Postal_Code: 32306-2641

Country: USA

Contact_Voice_Telephone: 850-644-2305

Contact_Facsimile_Telephone: 850-644-7360

Contact_Electronic_Mail_Address: labins@admin.fsu.edu

Contact_Instructions:

Florida DRGs can be downloaded from LABINS at <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Process_Step:

Process_Description:

The following Digital Raster Graphics (UTM - NAD27 - Collars Intact, 1:250,000) were downloaded from LABINS: C24080A1, C25080A1, and C26080A1. Each DRG was cropped to remove as much of the collar as possible without removing any of the topographic map. Pixels in the remaining collar region around each image was converted to white. All cropped DRGs were mosaicked to form one DRG. The mosaicked DRG was reprojected to UTM, WGS84 and cropped to only include the topographic maps. The image was cut into 96 square sections (25km X 25km each) using the Map Series and Mosaic tools in Erdas Imagine.

Source_Used_Citation_Abbreviation: Digital Raster Graphic UTM - NAD27 - Collars Intact

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Mike Rugge

Contact_Organization: Florida Coastal Everglades LTER

Contact_Address:

Address_Type: mailing address

Address: Southeast Environmental Research Center

Address: Florida International University

Address: University Park, OE 148

City: Miami

State_or_Province: FL

Postal_Code: 33199

Country: USA

Contact_Voice_Telephone: (305) 348-6054

Contact_Facsimile_Telephone: (305) 348-4096

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 11812

Column_Count: 7875

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: 25.400001

Ordinate_Resolution: 25.400001

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Land Boundary Information System (LABINS)

Contact_Address:

Address_Type: mailing and physical address

Address: Florida Resource and Environmental Analysis Center

Address: Technical Assistance Program

Address: C2200 University Center

Address: Florida State University

City: Tallahassee

State_or_Province: FL

Postal_Code: 32306-2641

Country: USA

Contact_Voice_Telephone: 850-644-2305

Contact_Facsimile_Telephone: 850-644-7360

Contact_Electronic_Mail_Address: labins@admin.fsu.edu

Resource_Description:

Florida digital raster graphics (DRGs) - UTM - NAD27 - Collars Intact

Distribution_Liability:

The Florida Department of Environmental Protection, Division of State Lands, Bureau of Survey and Mapping, has contracted with the Florida Resources and Environmental Analysis Center, Florida State University, to collect the attendant data from Federal, State, and local agencies for use by the private sector. The Department of Environmental Protection and the Environmental Analysis Center make no warranties, expressed or implied, concerning the accuracy, completeness, reliability, or suitability for any particular purpose of the data contained herein. Furthermore, the Department of Environmental Protection and the Environmental Analysis Center assume no liability associated with the use of such data.

Since this data was developed and collected with U.S. Government and the State of Florida funding, no proprietary rights may be attached to it, nor may it be sold to the U.S. Government or the Florida State Government as part of any procurement of ADP products or service.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Custom_Order_Process:

Florida USGS DRGs can be downloaded from LABINS at <http://data.labins.org/2003/MappingData/drg/drg_utm27.cfm>

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Florida Coastal Everglades LTER

Contact_Address:

Address_Type: mailing address

Address: Southeast Environmental Research Center

Address: Florida International University

Address: University Park, OE 148

City: Miami

State_or_Province: FL

Postal_Code: 33199

Country: USA

Contact_Voice_Telephone: (305) 348-6054

Contact_Facsimile_Telephone: (305) 348-4096

Resource_Description: Downloadable data

Distribution_Liability:

Complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Florida Coastal Everglades LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.

Standard_Order_Process:

Metadata_Reference_Information:

Metadata_Date: 20031117

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Mike Rugge

Contact_Organization: Florida Coastal Everglades LTER

Contact_Address:

Address_Type: mailing address

Address: Southeast Environmental Research Center

Address: Florida International University

Address: University Park, OE 148

City: Miami

State_or_Province: FL

Postal_Code: 33199

Country: USA

Contact_Voice_Telephone: (305) 348-6054

Contact_Facsimile_Telephone: (305) 348-4096

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