COW_Q03.TIF - U.S. Pacific West Coast EEZ GLORIA sidescan-sonar data mosaic (3 of 36) (TM, 50 m, NAD27)
Metadata also available as - [Questions & Answers] - [Parseable text]
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: U.S. Geological Survey
- Publication_Date: 2011
- Title:
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COW_Q03.TIF - U.S. Pacific West Coast EEZ GLORIA sidescan-sonar data mosaic (3 of 36) (TM, 50 m, NAD27)
- Edition: 1.0
- Geospatial_Data_Presentation_Form: remote-sensing image
- Series_Information:
-
- Series_Name: Open-File Report
- Issue_Identification: 2010-1332
- Publication_Information:
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- Publication_Place: Pacific Coastal and Marine Science Center, Menlo Park, CA
- Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
- Online_Linkage:
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<https://pubs.usgs.gov/of/2010/1332/gloria_data/pacific_coast/cow_q03.zip>
- Larger_Work_Citation:
-
- Citation_Information:
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- Originator: Valerie F. Paskevich
- Originator: Florence L. Wong
- Originator: John J. O'Malley
- Originator: Andrew J. Stevenson
- Originator: Christina E. Gutmacher
- Publication_Date: 2011
- Title:
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GLORIA Sidescan-Sonar Imagery for Parts of the U.S. Exclusive Economic Zone and Adjacent Areas.
- Edition: 1.0
- Series_Information:
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- Series_Name: Open-File Report
- Issue_Identification: 2010-1332
- Publication_Information:
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- Publication_Place: Pacific Coastal and Marine Science Center, Menlo Park, CA
- Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
- Online_Linkage: <https://pubs.usgs.gov/of/2010/1332/>
- Description:
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- Abstract:
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In March 1983, President Ronald Reagan signed a proclamation establishing an Exclusive Economic Zone (EEZ) of the United States extending its territory 200 nautical miles from the coasts of the United States, Puerto Rico, the Northern Mariana Islands, and the U.S. territories and possessions. In 1984, the U.S. Geological Survey (USGS), Office of Marine Geology began a program to map these areas of the EEZ. The U.S. Pacific Coast was the first EEZ region to be mapped and launched GLORIA (Geological LOng-Range Inclined Asdic) mapping program. The area covered by this survey extended from the Mexican to the Canadian borders and from the continental shelf edge, at about the 400-meter bathymetric contour, to 200 nautical miles from the coast. Survey of the U.S. Pacific West Coast EEZ was completed in four consecutive cruises conducted from late April through mid-August 1984. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 36 digital mosaics of an approximate 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the region.
- Purpose:
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This remote sensing image of the seafloor is 3 of 36 mosaics created from GLORIA sidescan-sonar data covering the U.S. Pacific West Coast.
- Time_Period_of_Content:
-
- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 19840426, 19840523, 19840615, 19840711
- Ending_Date: 19840521, 19840613, 19840708, 19840815
- Currentness_Reference: ground condition
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -123.029985
- East_Bounding_Coordinate: -120.925384
- North_Bounding_Coordinate: 32.037708
- South_Bounding_Coordinate: 29.960265
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus: General
- Theme_Keyword: U.S. Geological Survey
- Theme_Keyword: USGS
- Theme_Keyword: Coastal and Marine Geology Program
- Theme_Keyword: CMGP
- Theme_Keyword: Western Coastal and Marine Geology
- Theme_Keyword: WCMG
- Theme_Keyword: Geological LOng-Range Inclined Asdic
- Theme_Keyword: GLORIA
- Theme_Keyword: GeoTIFF image
- Theme_Keyword: grey scale image
- Theme_Keyword: backscatter
- Theme_Keyword: acoustic reflectivity
- Theme_Keyword: marine geology
- Theme_Keyword: sidescan-sonar mosaic
- Theme_Keyword: Exclusive Economic Zone
- Theme_Keyword: EEZ
- Theme_Keyword: Infobank identifier F-1-84-SC
- Theme_Keyword: Infobank identifier F-2-84-NC
- Theme_Keyword: Infobank identifier F-3-84-NC
- Theme_Keyword: Infobank identifier F-4-84-WO
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: oceans
- Theme_Keyword: geoscientificInformation
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme:
-
- Theme_Keyword_Thesaurus:
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NASA/Global Change Master Directory (GCMD) Earth Science Keywords, Version 6.0.0.0.0
- Theme_Keyword: Oceans > Ocean Acoustics > Acoustic Reflectivity
- Theme:
-
- Theme_Keyword_Thesaurus: NASA/Global Change Master Directory (GCMD) Instrument Keywords
- Theme_Keyword: ACOUSTIC RECEIVERS
- Theme_Keyword: GLORIA > Geological Long-Range Inclined ASDIC
- Theme_Keyword: SIDE-SCAN SONAR
- Place:
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- Place_Keyword_Thesaurus: General
- Place_Keyword: U.S. Pacific West Coast
- Place_Keyword: California
- Place_Keyword: Oregon
- Place_Keyword: Washington
- Place_Keyword: Monterey Fan
- Place_Keyword: Monterey Canyon
- Place_Keyword: Arguello Fan
- Place_Keyword: Arguello Canyon
- Place_Keyword: Santa Monica Trough
- Place_Keyword: San Pedro Trough
- Place_Keyword: San Diego Trough
- Place_Keyword: San Lucia Escarpment
- Place_Keyword: Point Conception
- Place_Keyword: Point Arena
- Place_Keyword: Coos Bay
- Place_Keyword: Gorda Ridge
- Place_Keyword: Mendocino Fracture Zone
- Place_Keyword: Mendocino Channel
- Place_Keyword: Mendocino Canyon
- Place_Keyword: Nitinat Fan
- Place_Keyword: Juan de Fuca Ridge
- Place_Keyword: Juan de Fuca Plate
- Place_Keyword: Blanco Fracture Zone
- Place_Keyword: Cascadia Channel
- Place_Keyword: Murray Fracture Zone
- Place_Keyword: Pacific Plate
- Place_Keyword: Gorda Plate
- Place_Keyword: Delgado Fan
- Place_Keyword: Farallon Fan
- Place_Keyword: Gorda Escarpment
- Place_Keyword: Gorda Basin
- Place_Keyword: Baja Seamount Province
- Place_Keyword: Delgada Fan
- Place_Keyword: Taney Seamounts
- Place_Keyword: Escanaba Trough
- Place:
-
- Place_Keyword_Thesaurus: NASA/Global Change Master Directory (GCMD) Place Keywords
- Place_Keyword: Ocean > Pacific Ocean
- Place_Keyword: Ocean > Pacific Ocean > North Pacific Ocean
- Access_Constraints: None
- Use_Constraints:
-
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Florence Wong
- Contact_Position: Geologist
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5327
- Contact_Facsimile_Telephone: (650) 329-5198
- Contact_Electronic_Mail_Address: fwong@usgs.gov
- Browse_Graphic:
-
- Browse_Graphic_File_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/pacific_coast/browse/cow_q03-thumb.gif>
- Browse_Graphic_File_Description:
-
Thumbnail image showing an overview of the U.S EEZ U.S. Pacific West Coast GLORIA mosaic 3.
- Browse_Graphic_File_Type: GIF
- Browse_Graphic:
-
- Browse_Graphic_File_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/pacific_coast/browse/cow_q03.gif>
- Browse_Graphic_File_Description:
-
Browse image showing an overview of the U.S EEZ U.S. Pacific West Coast GLORIA mosaic 3.
- Browse_Graphic_File_Type: GIF
- Data_Set_Credit:
-
The U.S. Geological Survey (USGS) must be referenced as the originator of the dataset in any future products or research derived from these data.
- Native_Data_Set_Environment:
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Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
- Cross_Reference:
-
- Citation_Information:
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- Originator: J.V. Gardner (editor)
- Originator: M.E. Field (editor)
- Originator: D.C. Twichell (editor)
- Publication_Date: 1996
- Title: Geology of the United States Seafloor: The View from GLORIA
- Publication_Information:
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- Publication_Place: Cambridge, U.K.
- Publisher: Cambridge University Press
- Cross_Reference:
-
- Citation_Information:
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- Originator: P.S. Chavez Jr.
- Publication_Date: 1986
- Title: Processing Techniques for Digital Sonar Images from GLORIA
- Series_Information:
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- Series_Name: Photogrammetric Engineering and Remote Sensing
- Issue_Identification: Vol. 52, No. 8, August 1986, p. 1133-1145
- Publication_Information:
-
- Publication_Place: Falls Church, VA 22046
- Publisher: American Society for Photogrammetry and Remote Sensing
- Cross_Reference:
-
- Citation_Information:
-
- Originator: P.S. Chavez Jr.
- Publication_Date: 1984
- Title: U.S. Geological Survey mini image processing system (MIPS)
- Series_Information:
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- Series_Name: Open-File Report
- Issue_Identification: 88-880
- Publication_Information:
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- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Data_Quality_Information:
-
- Attribute_Accuracy:
-
- Attribute_Accuracy_Report: There are no attributes associated with a GEOTIFF image.
- Logical_Consistency_Report: not applicable
- Completeness_Report:
-
All available imagery were used to create this mosaic. Data were acquired during four cruises using the 6.5 kHz GLORIA sidescan-sonar system and a 45-km total swath width.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
-
Primary navigational control for this survey was by Loran-C supplemented by satellite navigation. Accuracy of location of the navigation fixes is estimated to be better than 100 meters.
- Lineage:
-
- Source_Information:
-
- Type_of_Source_Media: digital tape media
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date: 19840426, 19840523, 19840615, 19840711
- Ending_Date: 19840521, 19840613, 19840708, 19840815
- Source_Currentness_Reference: ground condition
- Source_Citation_Abbreviation: GLORIA pass data
- Source_Contribution:
-
GLORIA data were logged to magnetic tape in 6-hour portions referred to as "passes". Each completed pass contained a maximum 720 "lines" of data at the usual 30-second pulse repetition rate. Each line consisted of a 1024 byte record that contained the port and starboard returns from a single ping as well as header information. These "passes" contained geometric and radiometric distortions which had to be corrected before they could be digitally mosaicked.
- Process_Step:
-
- Process_Description:
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The GLORIA "passes" necessary to complete the mosaic were retrieved from magnetic tape. Navigation data were merged into the individual "passes" to update the header information with depth and location coordinates.
- Source_Used_Citation_Abbreviation: GLORIA pass data
- Process_Date: 1987
- Source_Produced_Citation_Abbreviation: "pass".mrg
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
Slant-Range correction, the first of two geometric corrections, were applied to the "passes". Slant-range error is a mislocation of pixels in the cross-track direction compared to their proper location on a map. This error occurs due to the way that the sidescan-sonar senses distance to a target. After the slant-range correction has been made, the across-track location of targets is accurate.
- Source_Used_Citation_Abbreviation: "pass".mrg
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".slr
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
A series of radiometric corrections were then applied to the "passes". The first enhancement was used to correct for shading problems that occur in the across-track direction and are a function of attenuation in range distance and transmitter power build-up.
- Source_Used_Citation_Abbreviation: "pass".slr
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".shd
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
The next radiometric enhancement was applied in a two-part filtering process to remove the striped noise that can be found in side-scan sonar image in the across-track direction. The noise was removed by applying two separate boxcar filters: (1) a high-pass filter that will contain the high-frequency component of the image without the noise; and (2) a low-pass filter that will include the low-frequency component of the image without the noise.
- Source_Used_Citation_Abbreviation: "pass".shd
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".hpf
- Source_Produced_Citation_Abbreviation: "pass".lpf
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
The two filtered images were combined to recreate an image similar to the original but without the noise.
- Source_Used_Citation_Abbreviation: "pass".lpf
- Source_Used_Citation_Abbreviation: "pass".hpf
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".wco
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
The second geometric correction, aspect-ratio distortion, was applied to the "passes". The aspect-ratio distortion was removed by using the navigation data to compute the distance traveled by the ship. Given the distance traveled, the number of pixels (each representing 50 m) required along the particular segment was calculated. The original pixels were then duplicated the appropriate number of times to fill the space with 50-meter pixels and thus achieve a 1:1 ratio between along-track and across-track distances. The practice of duplication to create a square 50-meter pixel size was followed so that information in the across-track direction would not have to be omitted.
- Source_Used_Citation_Abbreviation: "pass".wco
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".vel
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
The final enhancement, a 2 by 2 low-pass filter for smoothing the images, was applied to the "passes". Because the delta velocity correction typically stretches the imagery 1:2.5 times, a 2 by 2 low-pass filter is applied to the image to smooth and reduce the blockiness that results from the line duplication. The 2 by 2 low-pass filter smoothes out the blockiness introduced into the image without over smoothing and blurring the image.
- Source_Used_Citation_Abbreviation: "pass".vel
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: "pass".2b2
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
After the geometric and radiometric corrections were applied, the data were ready for the digital mosaicking. The necessary segments of processed data, each representing about 6-hours of data acquisition, were spliced end-to-end to make continuous swaths for portions of the tracklines where the ship's heading remained generally constant and passed through the mosaic area. The segments were tone-matched by adjusting the average brightness to minimize the tonal contrast at the seams where they were joined. Latitude, longitude, and heading were determined along the trackline of each continuous segment of data at the start, end, and two intermediate points. These four control points, with eight additional points that were computed for the edges of the image segment, were used to position the segment within the map grid.
- Source_Used_Citation_Abbreviation: "pass".2b2
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: cow_q03_line"n"
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
When the individual trackline segments had been georeferenced, the next step was to digitally stencil the segments to remove unwanted data (i.e. noise). Interactively, a line was drawn on a video display outlining the portion of each image segment to be retained while comparing it to adjacent segments. Then all pixels outside the area enclosed by the line were converted to zero values, thereby retaining only that portion of the image desired. Finally, each stenciled segment was mosaicked to adjacent segments, sequentially building the composite map. In this way a digital file was created with the desired map projection for each imagery sheet (mosaic).
- Source_Used_Citation_Abbreviation: cow_q03_line"n"
- Process_Date: Unknown
- Source_Produced_Citation_Abbreviation: cow_q03
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Process_Step:
-
- Process_Description:
-
The binary image files of the GLORIA mosaics were imported into a PCI database file allowing the images to be georeferenced. The image georeference report was saved for future reference.
- Source_Used_Citation_Abbreviation: cow_q03.bil
- Process_Date: 20030929
- Source_Produced_Citation_Abbreviation: cow_q03.pix; chan 1
- Source_Produced_Citation_Abbreviation: cow_q03-georep.txt
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- 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
- Contact_Facsimile_Telephone: (508) 457-2310
- Process_Step:
-
- Process_Description:
-
The GLORIA image was exported from the PCI database file to a GeoTIFF image with an accompanying world file.
- Source_Used_Citation_Abbreviation: cow_q03.pix; chan 2
- Process_Date: 20030929
- Source_Produced_Citation_Abbreviation: cow_q03.tif
- Source_Produced_Citation_Abbreviation: cow_q03.tfw
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- 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
- Contact_Facsimile_Telephone: (508) 457-2310
- Process_Step:
-
- Process_Description:
-
The image was modified to flood-fill the background 0 (black) data value to 255 (white). After modification, the header portion of the image was updated to restore the georeferencing information.
- Source_Used_Citation_Abbreviation: cow_q03.tif
- Source_Used_Citation_Abbreviation: cow_q03.tfw
- Process_Date: 20030929
- Source_Produced_Citation_Abbreviation: cow_q03.tif
- Source_Produced_Citation_Abbreviation: cow_q03.tfw
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- 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
- Contact_Facsimile_Telephone: (508) 457-2310
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Raster
- Raster_Object_Information:
-
- Raster_Object_Type: Pixel
- Row_Count: 4523
- Column_Count: 3921
- Vertical_Count: 1
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Map_Projection:
-
- Map_Projection_Name: Transverse Mercator
- Transverse_Mercator:
-
- Scale_Factor_at_Central_Meridian: 1.000000
- Longitude_of_Central_Meridian: -124.500000
- Latitude_of_Projection_Origin: 0.000000
- False_Easting: 0.000000
- False_Northing: 0.000000
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: row and column
- Coordinate_Representation:
-
- Abscissa_Resolution: 49.998894
- Ordinate_Resolution: 49.999169
- 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
- Entity_and_Attribute_Information:
-
- Overview_Description:
-
- Entity_and_Attribute_Overview:
-
There are no attributes associated with a GeoTIFF image. Image pixel values contain acoustic reflectivity values normalized to an 8-bit data range (0-255). Low-backscatter is represented by dark tones (low values), and high-backscatter is represented by bright tones (high values).
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 345 Middlefield Road MS 999
- City: Menlo Park
- State_or_Province: CA
- Postal_Code: 94025
- Country: USA
- Contact_Voice_Telephone: (650) 329-5078
- Contact_Facsimile_Telephone: (650) 329-5190
- Resource_Description: Downloadable Data
- Distribution_Liability:
-
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name: TIFF
- Format_Specification: GeoTIFF
- Format_Information_Content:
-
A zip archive containing the GeoTIFF image, world file, browse graphics and metadata files.
- File_Decompression_Technique: zip archive
- Transfer_Size: 6.82
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/pacific_coast/cow_q03.zip>
- Access_Instructions: Data are available for download on the World Wide Web (WWW).
- Offline_Option:
-
- Offline_Media: DVD-ROM
- Recording_Capacity:
-
- Recording_Density: 4.75
- Recording_Density_Units: Gbytes
- Recording_Format: UDF
- Fees: None
- Technical_Prerequisites:
-
The sidescan-sonar mosaic is available as a GEOTIFF image with accompanying world file and georeference report. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GEOTIFF image. If the georeferencing information cannot be imported, the user may wish to view the georeference information contained in a separate file included in the zip file.
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- 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
- Contact_Facsimile_Telephone: (508) 457-2310
- Resource_Description: Downloadable Data
- Distribution_Liability:
-
Neither the U.S. Government, the Department of the Interior, nor the U.S. Geological Survey, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name: TIFF
- Format_Specification: GeoTIFF
- Format_Information_Content:
-
A zip archive containing the GeoTIFF image, world file, browse graphics and metadata files.
- File_Decompression_Technique: zip archive
- Transfer_Size: 6.82
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/pacific_coast/cow_q03.zip>
- Access_Instructions: Data are available for download on the World Wide Web (WWW).
- Offline_Option:
-
- Offline_Media: DVD-ROM
- Recording_Capacity:
-
- Recording_Density: 4.75
- Recording_Density_Units: Gbytes
- Recording_Format: UDF
- Fees: None
- Technical_Prerequisites:
-
The sidescan-sonar mosaic is available as a GeoTIFF image with accompanying world file and georeference report. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GEOTIFF image. If the georeferencing information cannot be imported, the user may wish to obtain the georeference information contained in a separate file included in the zip file.
- Metadata_Reference_Information:
-
- Metadata_Date: 20090901
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- 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
- Contact_Facsimile_Telephone: (508) 457-2310
- Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
- Metadata_Access_Constraints: None
- Metadata_Use_Constraints: None
- Metadata_Extensions:
-
- Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
- Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.8 on Thu Mar 31 11:51:16 2011