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# Composite digital sidescan sonar mosaic of Sarasota, FL

## Metadata:

- Identification_Information
- Data_Quality_Information
- Spatial_Data_Organization_Information
- Spatial_Reference_Information
- Distribution_Information
- Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: David C. Twichell, Jr.
Publication_Date: 19980702
Title: Composite digital sidescan sonar mosaic of Sarasota, FL
Geospatial_Data_Presentation_Form: remote-sensing image
Publication_Information:

Publication_Place: Woods Hole Field Center
Publisher: USGS, Coastal and Marine Geology Team

Description:

Abstract:
  The U.S. Geological Survey, in cooperation with the University of South Florida and Eckerd College, completed a bathymetric, sidescan sonar, high-resolution seismic-reflection, and surface sediment sampling survey of the inner shelf environment along the western Florida coast. The survey area extends 15km from Sarasota Point to Buttonwood Harbor. This study is part of a larger program initiated by the U.S. Geological Survey to map the geologic framework and monitor the modern processes that affect the western Florida coastal zone. This portion of the project included a reconnaissance high-resolution seismic and side-scan sonar surveys of the entire study area, detailed mapping to identify patterns of hard grounds and sediment cover, and coring of sediments to document historical development of the inner shelf and coastal
Purpose:
  This GIS overlay is a component of the Sarasota, Florida ArcView GIS database and contains the completed sidescan sonar mosaic for the study area. Image resolution is 4m pixels and has a black background surrounding the composite mosaic.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19950502
Ending_Date: 19950508

Currentness_Reference: field_work

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -82.73332
East_Bounding_Coordinate: -82.56665
North_Bounding_Coordinate: 27.3856
South_Bounding_Coordinate: 27.2151

Keywords:

Theme:

Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Woods Hole Field Center
Theme_Keyword: R/V BELLOWS
Theme_Keyword: BLWS 95-04
Theme_Keyword: May 2-8, 1995
Theme_Keyword: image
Theme_Keyword: TIFF
Theme_Keyword: geotiff
Theme_Keyword: ArcView
Theme_Keyword: sidescan sonar mosaic
Theme_Keyword_Thesaurus: PrincipalInvestigators
Theme_Keyword: David C. Twichell
Theme_Keyword: Guy Gelfenbaum

Place:

Place_Keyword_Thesaurus: General
Place_Keyword: Gulf of Mexico
Place_Keyword: Florida
Place_Keyword: West Florida shelf
Place_Keyword: Sarasota
Place_Keyword: Big Sarasota Pass
Place_Keyword: Longboat Key
Place_Keyword: Buttonwood Harbor
Place_Keyword: New Pass
Place_Keyword: Lido Key

Access_Constraints: none
Use_Constraints:
  The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data.
Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David Twichell

Contact_Position: Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Hours_of_Service: 8:00am-5:00pm ET; M-F

Browse_Graphic:

Browse_Graphic_File_Name: compos.tif
Browse_Graphic_File_Description: TIFF
Browse_Graphic_File_Type: 8-bit gray scale composite mosaic with black background

Native_Data_Set_Environment:
  PCI Remote Sensing Software; ESRI ARC/INFO data/imagery/utmd00/compos.tif

Data_Quality_Information:

Logical_Consistency_Report: .
Completeness_Report:
  All collected data were processed and used to generate the digital mosaic.
Lineage:

Process_Step:

Process_Description:
  The individual swaths were mapped with a specific map area and projection. Two files were created with one containing the northwest to southeast lines and the second containing the southeast to northwest lines. For detailed information regarding the process, please refer to U.S. Geological Survey Open-File Report 92-536. USGS, Coastal and Marine Geology Program
Source_Used_Citation_Abbreviation: QMIPS data
Process_Date: 19940620
Source_Produced_Citation_Abbreviation: WHIPS NetCDF files
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David Twichell

Contact_Position: Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Hours_of_Service: 8:00am-5:00pm ET; M-F

Process_Step:

Process_Description:
  The two files containing the georeferenced strips were imported to the PCI Remote Sensing software and combined utilizing their GCPworks software package. For detailed information regarding the process, please refer to U.S. Geological Survey Open-File Report 96-281.
Source_Used_Citation_Abbreviation: WHIPS NetCDF files
Process_Date: 19940621
Source_Produced_Citation_Abbreviation: sarasota.pix
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: David Twichell

Contact_Position: Oceanographer
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov
Hours_of_Service: 8:00am-5:00pm ET; M-F

Process_Step:

Process_Description:
  The final 1 meter mosaic was resampled to 4 meter resolution and reprojected to UTM. The final image was output as a geotiff image for archiving. To obtain the full 1 meter mosaic, please contact the originator of the dataset.
Source_Used_Citation_Abbreviation: sarasota.pix
Process_Date: 19980702
Source_Produced_Citation_Abbreviation: utmd00.pix
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Valerie Paskevich

Contact_Position: Computer Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2281
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vpaskevich@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Pixel
Row_Count: 4617
Column_Count: 4063

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Transverse Mercator
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.99960
Longitude_of_Central_Meridian: -081.000000
Latitude_of_Projection_Origin: +00.000000
False_Easting: 500000
False_Northing: 0.00000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:

Abscissa_Resolution: 4.0003238217
Ordinate_Resolution: 4.0465400583

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: Dave Twichell

Contact_Position: Data Librarian
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700-2266
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: dtwichell@usgs.gov

Resource_Description: compos.tif
Distribution_Liability:
  Although this derived data set has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF
File_Decompression_Technique: No compression applied
Transfer_Size: 18,338Kb

Digital_Transfer_Option:

Offline_Option:

Offline_Media: CD-ROM
Recording_Capacity:

Recording_Density: 650
Recording_Density_Units: Mbytes

Recording_Format: ISO 9600
Compatibility_Information:
  The user must have a CD-ROM capable of reading an ISO 9660 standard CD-ROM.

Fees: unknown

Technical_Prerequisites:
  The user must have a program capable of reading and processing 'geotiff' images.

Metadata_Reference_Information:

Metadata_Date: 19990607
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS, Coastal and Marine Geology Team
Contact_Person: Valerie Paskevich

Contact_Position: Computer Specialist
Contact_Address:

Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2281
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: vpaskevich@usgs.gov

Metadata_Standard_Name: FGDC CSDGM
Metadata_Standard_Version: 19940608
Metadata_Time_Convention: Local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None

Generated by `mp` on Mon Jun 7 14:13:59 1999