Gulf of Mexico Marine Geology and Geophysics from Field Activity: A-1-97-GM: West Flower Garden Bank bathymetry and backscatter data

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Peter Dartnell
Originator: James V. Gardner
Publication_Date: 1999
Title:
Gulf of Mexico Marine Geology and Geophysics from Field Activity: A-1-97-GM: West Flower Garden Bank bathymetry and backscatter data
Larger_Work_Citation:
Citation_Information:
Originator: Peter Dartnell
Originator: James V. Gardner
Publication_Date: 1999
Title:
Sea-Floor Images and Data from Multibeam Surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: U.S. Geological Survey Digital Data Series
Issue_Identification: DDS-55
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/dds/dds-55/
Description:
Abstract:
Bathymetry and seafloor backscatter data for the Flower Gardens National Marine Sanctuary are provided in TIFF image format.
This data set contains data, metadata, and formal metadata associated with a marine data collection activity referred to by the USGS/CMG Activity ID: A-1-97-GM
Purpose:
These data and information are intended for science researchers, students from elementary through college, policy makers, and general public. Pacific Seaflloor Mapping Project Test cruise.
Supplemental_Information:
Similar information is available for over 1500 other USGS/CMG-related Activities. If known, available are Activity-specific navigation, gravity, magnetics, bathymetry, seismic, and sampling data; track maps; and equipment information; as well as summary overviews, crew lists, and information about analog materials. Primary access to the USGS/CMG Information Bank's digital data, analog data, and metadata is provided through... http://cmgds.marine.usgs.gov/ This page accomodates a variety of search approaches (e.g., by ship, by region, by scientist, by equipment type, etc.).
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1997
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -132.00000
East_Bounding_Coordinate: -114.00000
North_Bounding_Coordinate: 50.00000
South_Bounding_Coordinate: 30.00000
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: geospatial datasets
Theme_Keyword: seafloor characteristics
Theme_Keyword: sonar methods
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Gulf of Mexico
Place:
Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: OC16 = Gulf of Mexico
Access_Constraints: Physical materials are under controlled on-site access.
Use_Constraints:
Please recognize the U.S. Geological Survey (USGS) as the source of this information. Physical materials are under controlled on-site access. Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user. This information is not intended for navigational purposes. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Dartnell
Contact_Organization: U.S. Geological Survey, GEO-WRG-MCS
Contact_Address:
Address_Type: mailing address
Address:
Mail Stop 999
Bldg 15, McKelvey Building
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: 650-329-5460
Contact_Facsimile_Telephone: 650-329-5411
Contact_Electronic_Mail_Address: pdartnell@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://pubs.usgs.gov/dds/dds-55/pacmaps/images/wf_index.gif
Browse_Graphic_File_Description:
Index map showing mapped area, coastline, and regional bathymetric contours. 491x417 pixels, 32-bit RGB true color, 30 kbytes.
Browse_Graphic_File_Type: GIF
Cross_Reference:
Citation_Information:
Originator:
United States Geological Survey (USGS), Coastal and Marine Geology (CMG)
Publication_Date: Unknown
Title: USGS/CMG Information Bank
Other_Citation_Details: Updated daily
Online_Linkage: http://cmgds.marine.usgs.gov/
Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
West Flower Gardens was mapped as part of a test cruise which took place in December 1997. The data is so spectacular that is was decided to publish the data. This area was mapped using a Kongsberg Simrad EM-300 Multibeam System hull mounted to C&C Technologies' RV Ocean Alert.
1. Bathymetry and backscatter data processed on Silicon Graphic computer using software developed by the Ocean Mapping Group, University of New Brunswick. (see USGS Open File Report 98-509, The Bathymetry of Lake Tahoe, California-Nevada)
2. Processed data downloaded to a Sun Sparc Ultra 2, running Solaris 2.5 as an ascii file (longitude, latitude, depth, or backscatter DN value)
3. In Arc/Info 7.1.2 a point coverage is created from the ascii file.
4. Point coverge is projected from Geographic Coordinate System to UTM projection.
5. Projected point coverage is gridded using IDW (Inverse Distance Weighted) function.
6a. Grid is exported to Arc/Info export (.e00) file.
6b. Grid is converted to a TIFF image using the "Gridimage" command.
7. Both the export and TIFF files are compressed using UNIX version of GZIP.
Process_Date: 199712
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: grid cell
Row_Count: 2517
Column_Count: 2471
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 15
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -93
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 5
Ordinate_Resolution: 5
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Bathymetry values are depth in meters
Cell Size = 5.000
Data Type: Floating Point
Number of Rows = 2517
Number of Columns = 2471
BOUNDARY
Xmin = 412510.031
Xmax = 424865.031
Ymin = 3076795.750
Ymax = 3089380.750
STATISTICS
Minimum Value = -178.420
Maximum Value = -16.232
Mean = -107.947
Standard Deviation = 23.573
Backscatter values are a digital number (DN) associated with the reflected energy off the seafloor
Cell Size = 5.000
Data Type: Floating Point
Number of Rows = 2517
Number of Columns = 2471
BOUNDARY
Xmin = 412510.031
Xmax = 424865.031
Ymin = 3076795.750
Ymax = 3089380.750
STATISTICS
Minimum Value = 0.000
Maximum Value = 241.364
Mean = 176.392
Standard Deviation = 8.294
Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/dds/dds-55/pacmaps/openfile.htm
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS Information Services
Contact_Address:
Address_Type: mailing address
Address: Box 25286 Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Contact_Facsimile_Telephone: 303-202-4693
Contact_Electronic_Mail_Address: ask@usgs.gov
Resource_Description: USGS Digital Data Series DDS-55
Distribution_Liability:
Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Although all data and software published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: TIFF
Format_Version_Number: 6.0
Format_Information_Content: Seafloor bathymetry and backscatter data
File_Decompression_Technique: gzip -d
Transfer_Size: 9.4
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Number: 7.2.1
Format_Information_Content: Seafloor bathymetry and backscatter
File_Decompression_Technique: gzip -d
Transfer_Size: 40
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20160607
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter N. Schweitzer
Contact_Position:
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Contact_Address:
Address_Type: mailing address
Address:
Mail Stop 954 National Center
U.S. Geological Survey
12201 Sunrise Valley Drive
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: (703) 648-6533
Contact_Facsimile_Telephone: (703) 648-6560
Contact_Electronic_Mail_Address: pschweitzer@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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