PR_Q03.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (3 of 9) (ACEA, 50 m, Clarke1866)
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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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PR_Q03.TIF - Puerto Rico U.S. EEZ GLORIA sidescan-sonar data mosaic (3 of 9) (ACEA, 50 m, Clarke1866)
- Edition: 1.0
- Geospatial_Data_Presentation_Form: remote-sensing image
- 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:
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<https://pubs.usgs.gov/of/2010/1332/gloria_data/puerto_rico/pr_q03.zip>
- Larger_Work_Citation:
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- 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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The Puerto Rico U.S. EEZ study area includes the seafloor between the island of Puerto Rico and the Puerto Rico Trench floor and extends west to Mona Canyon and east to the U.S. Virgin Islands. South of the islands, it covers parts of the Muertos Trough and the Venezuelan Basin. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 9 digital mosaics of approximately a 2 degree by 2 degree (or smaller) area with a 50-meter pixel resolution were completed for the Puerto Rico U.S. EEZ.
- Purpose:
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This remote sensing image of the seafloor is 3 of 9 mosaics created from GLORIA sidescan-sonar data.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 19851104
- Ending_Date: 19851203
- Currentness_Reference: ground condition
- Status:
-
- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate: -66.508471
- East_Bounding_Coordinate: -64.975941
- North_Bounding_Coordinate: 21.008031
- South_Bounding_Coordinate: 18.994623
- Keywords:
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- 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: Woods Hole Science Center
- Theme_Keyword: WHSC
- 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: WHSC serial number 85039
- Theme_Keyword: WHSC cruise identifier FRNL85-4
- Theme_Keyword: WHSC cruise identifier FRNL85LEG4
- Theme:
-
- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: oceans
- Theme_Keyword: oceans and estuaries
- Theme_Keyword: oceans and coastal
- Theme_Keyword: geoscientificInformation
- Theme_Keyword: imageryBaseMapsEarthCover
- Theme:
-
- Theme_Keyword_Thesaurus:
-
NASA/Global Change Master Directory (GCMD) Earth Science Keywords, Version 6.0.0.0.0
- Theme_Keyword: Oceans > Ocean Acoustics > Acoustic Reflectivity
- Theme:
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- 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
- Theme:
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- Theme_Keyword_Thesaurus: National Park Service Theme Category Thesaurus
- Place:
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- Place_Keyword_Thesaurus: General
- Place_Keyword: Puerto Rico
- Place_Keyword: Virgin Islands
- Place_Keyword: Puerto Rico Trench
- Place_Keyword: Muertos Trough
- Place_Keyword: Mona Canyon
- Place_Keyword: Virgin Island Shelf
- Place_Keyword: Caribbean Sea
- Place_Keyword: Atlantic Ocean
- Place_Keyword: continental slope
- Place_Keyword: continental rise
- Place_Keyword: continental margin
- Place_Keyword: continental shelf
- Place:
-
- Place_Keyword_Thesaurus:
-
NASA/Global Change Master Directory (GCMD) Place Keywords, Version 6.0.0.0.0
- Place_Keyword: Ocean > Atlantic Ocean
- Place_Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean
- Place_Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea
- Place_Keyword:
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Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico
- Place_Keyword:
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Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Virgin Islands
- Place:
-
- Place_Keyword_Thesaurus: National Park System Unit Name Thesaurus
- Place:
-
- Place_Keyword_Thesaurus: National Park System Unit Code Thesaurus
- Access_Constraints: None
- Use_Constraints:
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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: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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
- Browse_Graphic:
-
- Browse_Graphic_File_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/puerto_rico/browse/pr_q03-thumb.gif>
- Browse_Graphic_File_Description:
-
Thumbnail image showing an overview of the Puerto Rico U.S. EEZ GLORIA mosaic 3.
- Browse_Graphic_File_Type: GIF
- Browse_Graphic:
-
- Browse_Graphic_File_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/puerto_rico/browse/pr_q03.gif>
- Browse_Graphic_File_Description:
-
Browse image showing an overview of the Puerto Rico U.S. EEZ 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:
-
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: EEZ-SCAN 85 Scientific Staff
- Publication_Date: 1987
- Title:
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Atlas of the U.S. Exclusive Economic Zone, Gulf of Mexico and Eastern Caribbean Areas
- Edition: 1.0
- Series_Information:
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- Series_Name: Miscellaneous Investigation Series
- Issue_Identification: I-1864-A,B
- Publication_Information:
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- Publication_Place: Reston, VA
- Publisher: U.S. Geological Survey
- Other_Citation_Details: 160 p.
- 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:
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- Publication_Place: Falls Church, VA 22046
- Publisher: American Society for Photogrammetry and Remote Sensing
- Cross_Reference:
-
- Citation_Information:
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- 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:
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All data used to produce the composite mosaic were collected using the 6.5 kHz GLORIA sidescan-sonar system. Data used in this mosaic were acquired using a 45-km total swath width.
- Positional_Accuracy:
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- 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:
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- Type_of_Source_Media: digital tape media
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date: 19851104
- Ending_Date: 19851203
- 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: 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:
-
Slant-Range correction, the first of two geometric corrections, was applied to the "passes". This processing step corrects slant-range to ground-range and removes the water column. 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: 1987
- 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: 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:
-
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: 1987
- 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: 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 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: 1987
- 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: 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 two filtered images were combined to recreate an image similar to the original but without the noise.
- Source_Used_Citation_Abbreviation: "pass".hpf
- Source_Used_Citation_Abbreviation: "pass".lpf
- Process_Date: 1987
- 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: 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 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: 1987
- 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: 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 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 smooths out the blockiness introduced into the image without over smoothing and blurring the image.
- Source_Used_Citation_Abbreviation: "pass".vel
- Process_Date: 1987
- 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: 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:
-
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: 1987
- Source_Produced_Citation_Abbreviation: pr_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: 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:
-
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: pr_q03_line"n"
- Process_Date: 1988
- Source_Produced_Citation_Abbreviation: pr_q03
- Process_Contact:
-
- 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
- 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 georerence report was saved for future reference.
- Source_Used_Citation_Abbreviation: pr_q03.bin
- Process_Date: 1996
- Source_Produced_Citation_Abbreviation: pr_q03.pix; chan 1
- Source_Produced_Citation_Abbreviation: pr_q03-georep.txt
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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:
-
A stencil line was drawn around the mosaic to clip the image area to the map quadrangle. The image outside the stencil area was eliminated to create a clipped image as presented in the 1987 EEZ-Scan Atlas publication.
- Source_Used_Citation_Abbreviation: pr_q03.pix; chan 1
- Process_Date: 1996
- Source_Produced_Citation_Abbreviation: pr_q03.pix; chan 2
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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: pr_q03.pix; chan 2
- Process_Date: 1996
- Source_Produced_Citation_Abbreviation: pr_q03.tif
- Source_Produced_Citation_Abbreviation: pr_q03.tfw
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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: pr_q03.tif
- Source_Used_Citation_Abbreviation: pr_q03.tfw
- Process_Date: 20050915
- Source_Produced_Citation_Abbreviation: pr_q03.tif
- Source_Produced_Citation_Abbreviation: pr_q03.tfw
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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: 4317
- Column_Count: 3272
- Vertical_Count: 1
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Map_Projection:
-
- Map_Projection_Name: Albers Conical Equal Area
- Albers_Conical_Equal_Area:
-
- Standard_Parallel: 45.500000
- Standard_Parallel: 29.500000
- Longitude_of_Central_Meridian: -65.750000
- 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: 50.000000
- Ordinate_Resolution: 50.000000
- 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). These data have NOT been radiometrically enhanced.
- 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 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: 6.68
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/puerto_rico/pr_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, pr_q03-georep.txt, 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: 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: 6.68
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
-
<https://pubs.usgs.gov/of/2010/1332/gloria_data/puerto_rico/pr_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, pr_q03-georep.txt, included in the zip file.
- Metadata_Reference_Information:
-
- Metadata_Date: 20050616
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: U.S. Geological Survey
- Contact_Person: Valerie Paskevich
- Contact_Position: Information Specialist / GIS Coordinator, retired
- 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 11:56:21 2011