U.S. Geological Survey
2011
ALEU_250M_LCC_WGS84.TIF - Aleutian Arc U.S. EEZ GLORIA sidescan-sonar composite mosaic (LCC, 250 m, WGS84)
1.0
remote-sensing image
Open-File Report
2010-1332
Pacific Coastal and Marine Science Center, Menlo Park, CA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20101332
https://pubs.usgs.gov/of/2010/1332/htmldocs/aa/aa_indexmap.html
https://pubs.usgs.gov/of/2010/1332/gloria_data/aleutian_arc/composite/aleu_250m_lcc_wgs84.zip
Valerie F. Paskevich
Florence L. Wong
John J. O'Malley
Andrew J. Stevenson
Christina E. Gutmacher
2011
GLORIA Sidescan-Sonar Imagery for Parts of the U.S. Exclusive Economic Zone and Adjacent Areas
1.0
Open-File Report
2010-1332
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2010/1332/
During late July through September 1987 and June and July 1988 the U.S. Geological Survey (USGS) conducted four cruises to cover the U.S. Aleutian Arc Exclusive Economic Zone (EEZ) region. 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 sea-floor. Thirty-one digital mosaics of a 3 degree by 3 degree (or smaller) area with a 50-meter pixel resolution were completed for the U.S. Aleutian Arc Exclusive Economic Zone region.
This remote sensing image of the sea-floor is a reduced-resolution (250-meter) composite mosaic of the 31 mosaics created from the Aleutian Arc U.S. EEZ GLORIA sidescan-sonar data.
19870728
19880802
19870728 to 19870826, 19870830 to 19870925, 19880607 to 19880705, and 19880706 to 19880802
None planned
166.503586
-161.997151
55.425639
46.008021
USGS Metadata Identifier
USGS:da2b93f7-f121-4dbe-8e39-a43e09ce9bd6
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Western Coastal and Marine Geology
WCMG
Geological LOng-Range Inclined Asdic
GLORIA
GeoTIFF image
grey scale image
backscatter
acoustic reflectivity
marine geology
sidescan-sonar mosaic
Exclusive Economic Zone
EEZ
Infobank identifier F-2-87-AA
Infobank identifier F-3-87-AA
Infobank identifier F-7-88-AA
Infobank identifier F-8-88-AA
ISO 19115 Topic Category
oceans
geoscientificInformation
imageryBaseMapsEarthCover
NASA/Global Change Master Directory (GCMD) Earth Science Keywords, Version 6.0.0.0.0
Oceans > Ocean Acoustics > Acoustic Reflectivity
NASA/Global Change Master Directory (GCMD) Instrument Keywords
ACOUSTIC RECEIVERS
GLORIA > Geological Long-Range Inclined ASDIC
SIDE-SCAN SONAR
Data Categories for Marine Planning
distributions
physical habitats and geomorphology
Marine Realms Information Bank (MRIB) Keywords
seabed
Exclusive Economic Zone (EEZ)
sidescan sonar
marine geophysics
USGS Thesaurus
sidescan sonar
image mosaics
marine geophysics
sea-floor characteristics
sea-floor acoustic reflectivity
Coastal and Marine Ecological Classification Standard (CMECS)
Marine Oceanic
Tectonic Trench
Continental/Island Slope
Marine Basin Floor
None
Alaska
Aleutian Arc
Aleutian Trench
Amchitka Island
Bowers Ridge
Bowers Basin
Stalemate Ridge
Zodiac Fan
NASA/Global Change Master Directory (GCMD) Place Keywords
Ocean > Pacific Ocean
Ocean > Pacific Ocean > North Pacific Ocean
Ocean > Pacific Ocean > North Pacific Ocean > Aleutian Arc
Coastal and Marine Ecological Classification Standard (CMECS)
Aleutian Islands Ecoregion
Coastal and Marine Ecological Classification Standard (CMECS)
Substrate
None
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.
U.S. Geological Survey
Florence Wong
Geologist
mailing and physical address
345 Middlefield Road MS 999
Menlo Park
CA
94025
USA
(650) 329-5327
(650) 329-5198
fwong@usgs.gov
https://pubs.usgs.gov/of/2010/1332/gloria_data/aleutian_arc/composite/browse/aleu_250m_lcc_wgs84-thumb.gif
Thumbnail image showing an overview of the Aleutian Arc U.S. EEZ GLORIA composite mosaic.
GIF
https://pubs.usgs.gov/of/2010/1332/gloria_data/aleutian_arc/composite/browse/aleu_250m_lcc_wgs84.gif
Browse image showing an overview of the Aleutian Arc U.S. EEZ GLORIA composite mosaic.
GIF
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. 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.
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
J.V. Gardner (editor)
M.E. Field (editor)
D.C. Twichell (editor)
1996
Geology of the United States Seafloor: The View from GLORIA
1.0
Cambridge, U.K.
Cambridge University Press
P.S. Chavez Jr.
1986
Processing Techniques for Digital Sonar Images from GLORIA
Photogrammetric Engineering and Remote Sensing
Vol. 52, No. 8, August 1986, p. 1133-1145
Falls Church, VA 22046
American Society for Photogrammetry and Remote Sensing
P.S. Chavez Jr.
1984
U.S. Geological Survey mini image processing system (MIPS)
Open-File Report
84-880
Reston, VA
U.S. Geological Survey
https://pubs.er.usgs.gov/publication/ofr84880
There are no attributes associated with a GeoTIFF image.
not applicable
All available imagery were used to create this mosaic. Data were acquired during several cruises using the 6.5 kHz GLORIA sidescan-sonar system and a 45 km total swath width.
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.
U.S. Geological Survey
unknown
Not available from original metadata file
disc
19870728
19880802
ground condition with the following date ranges: 19870728 to 19870826, 19870830 to 19870925, 19880607 to 19880705, and 19880706 to 19880802
Aleutian Arc U.S. EEZ GLORIA mosaics 1-31
The 31 completed 50-meter mosaics were combined to create a Lambert Conic Conformal (LCC) projection, 250-meter composite overview.
An empty PCI database for the full extent of the Aleutian Arc U.S. EEZ GLORIA was defined. The imagery database was defined with an Lambert Conic Conformal (LCC) projection at a resolution of 250-meters. Standard parallels of 50 and 59 and a central longitude of -177 were selected with the WGS84 spheroid/datum.
20061114
aleu_250m_lcc_wgs84.pix
U.S. Geological Survey
Valerie Paskevich
Information Specialist / GIS Coordinator, retired
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700
(508) 457-2310
Using the PCI Geomatics tool GCPworks, the 31 individual 50-meter mosaics were combined to create a composite overview of the Aleutian Arc U.S. EEZ GLORIA data at a resolution of 250-meters. The individual full-resolution GLORIA mosaics with the white flood-filled background were mosaiced together to create a single reduced-resolution composite mosaic for the Aleutian Arc U.S. EEZ. Individual mosaics were "dropped" into the composite database. No rubber sheeting or geometric corrections were applied to the mosaics. However, some mosaics were radiometrically enhanced to reduce the effect of the individual square boundaries and produce a more uniform overview image. The individual 31 mosaics were combined using a bi-linear resampling mode to reduce noise and blockiness.
aa_q01.tif
aa_q02.tif
aa_q03.tif
aa_q04.tif
aa_q05.tif
aa_q06.tif
aa_q07.tif
aa_q08.tif
aa_q09.tif
aa_q10.tif
aa_q11.tif
aa_q12.tif
aa_q13.tif
aa_q14.tif
aa_q15.tif
aa_q16.tif
aa_q17.tif
aa_q18.tif
aa_q19.tif
aa_q20.tif
aa_q21.tif
aa_q22.tif
aa_q22b.tif
aa_q23.tif
aa_q24.tif
aa_q25.tif
aa_q26.tif
aa_q27.tif
aa_q28.tif
aa_q29.tif
aa_q30.tif
aleu_250m_lcc_wgs84.pix
20061114
aleu_250m_lcc_wgs84.pix
U.S. Geological Survey
Valerie Paskevich
Information Specialist / GIS Coordinator, retired
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700
(508) 457-2310
The completed reduced 250-meter mosaic was exported from the PCI database as a GeoTIFF image with associated world file.
aleu_250m_lcc_wgs84.pix
20061114
aleu_250m_lcc_wgs84.tif
aleu_250m_lcc_wgs84.tfw
U.S. Geological Survey
Valerie Paskevich
Information Specialist / GIS Coordinator, retired
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700
(508) 457-2310
Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog.
20170105
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Added keywords from Coastal and Marine Ecological Classification Standard (CMECS) to metadata.
20180426
U.S. Geological Survey
Alan O. Allwardt
Contractor -- Information Specialist
mailing and physical address
2885 Mission Street
Santa Cruz
CA
95060
831-460-7551
831-427-4748
aallwardt@usgs.gov
Edits to the metadata were made to fix any errors that MP v 2.9.46 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added a landing page link as the first link in the identification section. Fixed the date format in the time period of content. Also, the time period of content dates in the Identification section did not agree with the other data from the Aleutian Arc, the abstract, or the source information, so was modified to match the other datasets from the same area. Removed LIDAR bounding coordinates - an artifact of Esri and MP processing. Attempted to modify http to https where appropriate. Added a cross-reference online link. The source information was incomplete and had to be modified to meet the standard. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
20180501
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Crossref DOI link was added as the first link in the metadata.
20191118
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20200908
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Raster
Pixel
3664
9443
1
Lambert Conformal Conic
50.000000
59.000000
-177.000000
0.000000
0.000000
0.000000
row and column
250.000000
250.000000
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
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.
U.S. Geological Survey
U.S. Geological Survey
mailing and physical address
345 Middlefield Road MS 999
Menlo Park
CA
94025
USA
(650) 329-5078
(650) 329-5190
Downloadable Data
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.
TIFF
Not available from original metadata
GeoTIFF
A zip archive containing the GeoTIFF image, world file, browse graphics and metadata files.
zip archive
9.74
https://pubs.usgs.gov/of/2010/1332/gloria_data/aleutian_arc/composite/aleu_250m_lcc_wgs84.zip
Data are available for download on the World Wide Web (WWW).
DVD-ROM
4.75
Gbytes
UDF
None
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.
U.S. Geological Survey
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700
(508) 457-2310
Downloadable Data
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.
TIFF
Not available from original metadata
GeoTIFF
A zip archive containing the GeoTIFF image, world file, browse graphics and metadata files.
zip archive
9.74
https://pubs.usgs.gov/of/2010/1332/gloria_data/aleutian_arc/composite/aleu_250m_lcc_wgs84.zip
Data are available for download on the World Wide Web (WWW).
DVD-ROM
4.75
Gbytes
UDF
None
The composite 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.
20211111
U.S. Geological Survey
Valerie Paskevich
Information Specialist / GIS Coordinator, retired
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543-1598
USA
(508) 548-8700
(508) 457-2310
whsc_data_contact@usgs.gov
The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
None
None