USGS Stellwagen Bank seafloor imagery map series

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Stellwagen Bank Seafloor Mapping Project
USGS Woods Hole Coastal and Marine Center
384 Woods Hole Road
Woods Hole, MA 02543-1598
Publication_Date: 1997
Title: USGS
Geospatial_Data_Presentation_Form: remote-sensing image
Online_Linkage:

Description:
Abstract:
Digital sonar images combine the geometric qualities of a map with the image qualities of a photograph. The sonar images in this series have a ground resolution of 0.5 x 0.5 meter, from sidescan sonar at a scale of 1:30000. Each image has 8000 x 8000 pixels and a geographic extent of 4000 x 4000 meters, with zero overlap between images. The images have been rectified to Massachusetts State Plane (UTM) meters, North American Datum (NAD) 1983. The file consists of raw one-byte image pixels, arranged in west-to-east rows from north to south. Within each byte, image brightness values range from 10 to 245. Each sonar mosaic has a companion Seafloor Elevation Model, listed separately. The sonar image number refers to the coordinates of the lower right-hand corner of the bottommost, rightmost pixel in the image. The number has the form XXXYYY, where XXX x 1000 is the X-coordinate and YYY x 1000 is the Y-coordinate in meters in the State Plane Coordinate System for the Massachusetts Mainland zone, NAD 1983.
Purpose:
Digital sonar images serve a wide variety of uses, from interim mapping to overlaying existing GIS layers to correcting GIS coverages and digital elevation models.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1995
Currentness_Reference: date of sonar imagery

Status:
Progress: In work
Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.0000
East_Bounding_Coordinate: -70.0000
North_Bounding_Coordinate: 42.0000
South_Bounding_Coordinate: 43.0000

Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Digital sidescan sonar
Theme_Keyword: Half-meter pixel
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Massachusetts Bay
Place_Keyword: MA
Place_Keyword: Stellwagen Bank
Place_Keyword: Marine Sanctuary
Place_Keyword: Stellwagen Basin
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: USGS
Place_Keyword: NOAA
Place_Keyword: CREED
Place_Keyword: Cape Cod Bay
Place_Keyword: Cape Ann
Place_Keyword: Gulf of Maine
Place_Keyword: Jeffrys Ledge
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1995

Access_Constraints: None

Use_Constraints:
None. The United States Geological Survey (USGS) Woods Hole Coastal and Marine Center asks to be credited in derived products.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS
Contact_Person: Bill Danforth
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) 457-2274
Contact_Facsimile_Telephone: (508) 457-2231
Contact_Electronic_Mail_Address:
bdanforth@usgs.gov


Browse_Graphic:
Browse_Graphic_File_Name: quad01.gif
Browse_Graphic_File_Type: GIF
Browse_Graphic_File_Description:
This image has been resampled to reduce the number of pixels by a factor of 16. It is available online at kai.er.usgs.gov

Browse_Graphic:
Browse_Graphic_File_Name: quad01.jpg
Browse_Graphic_File_Type: JPEG
Browse_Graphic_File_Description:
This image has been resampled to reduce the number of pixels by a factor of 16. It is available online at kai.er.usgs.gov.


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: (According to specs)

Logical_Consistency_Report: None

Completeness_Report: None

Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: (According to specs)
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: (According to specs)

Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: USGS
Publication_Date: Unpublished material
Title: Sidescan sonar imager
Geospatial_Data_Presentation_Form: remote-sensing images
Source_Scale_Denominator: 30000
Type_of_Source_Media: B&W sonar iamges
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1995
Source_Currentness_Reference: source sonar image date
Source_Citation_Abbreviation: None
Source_Contribution: The images were acquired from sidescan sonars.
Process_Step:
Process_Description: (Unknown)
Process_Date: Unknown
Source_Produced_Citation_Abbreviation: None

Cloud_Cover: 0


Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Massachusetts (portions of)

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 4000
Column_Count: 4000
Vertical_Count: 1


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 2001
Lambert_Conformal_Conic:
Standard_Parallel: 41.7166
Longitude_of_Central_Meridian: -71.5
Latitude_of_Projection_Origin: 41.7166667
False_Easting: 750000
False_Northing: 200000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 0.5
Ordinate_Resolution: 0.5
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: 8-bit pixels represent brightness values 30 -215
Entity_and_Attribute_Detail_Citation: None


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS
Contact_Person: Page Valentine
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) 457-2239
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: pvalentine@usgs.gov

Resource_Description: None

Distribution_Liability:
In no event shall the creators, custodians, or distributors of this information be liable for any damages arising out of its use (or the inability to use it).

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: BIL
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ISO 9660 with Rock Ridge extensions
Fees: Contact USGS for more information.


Metadata_Reference_Information:
Metadata_Date: 19960920

Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
USGS Woods Hole Marine and Coastal Center
384 Woods Hole Road
Woods Hole, MA 02543-1598
Contact_Person: Chris Polloni
Contact_Address:
Address_Type: mailing address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 457-2280
Contact_Electronic_Mail_Address: cpolloni@usgs.gov
Contact_Instructions:
Another source at USGS of information about this metadata
is Nancy Soderberg (e-mail: Nsoderberg@usgs.gov)
or Jim Robb (e-mail: Jrobb@usgs.gov).

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: June 8, 1994

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None


Generated by mp on Fri Sep 20 06:45:43 1996

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