Alicia F. Balster-Gee
Daniel S. Brothers
David P. Finlayson
Lee Liberty
Peter Dartnell
Gerry A. Hatcher
Peter J. Haeussler
Mike Byerly
2019
High-resolution multibeam bathymetry data collected southwest of Montague Island, Alaska during field activity 2014-622-FA
TIFF
data release
DOI:10.5066/P9K1YQ35
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey
https://doi.org/10.5066/P9K1YQ35
https://www.sciencebase.gov/catalog/file/get/5c5cb952e4b0fe48cb312520
Alicia F. Balster-Gee
Daniel S. Brothers
David P. Finlayson
Lee Liberty
Peter Dartnell
Gerry A. Hatcher
Peter J. Haeussler
Mike Byerly
2019
Bathymetry, acoustic backscatter, and minisparker seismic-reflection datasets collected southwest of Montague Island and southwest of Chenega, Alaska during field activity 2014-622-FA
data release
DOI:10.5066/P9K1YQ35
Pacific Coastal and Marine Science Center, Santa Cruz, CA
U.S. Geological Survey
https://doi.org/10.5066/P9K1YQ35
High-resolution multibeam data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Montague Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice, during USGS field activity 2014-622-FA, using a pole mounted 100-kHz Reson 7111 multibeam echosounder.
This work was funded by the U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program (CMHRP) Marine Geohazards Project and the Alaska Department of Fish and Game (ADFG). The high-resolution bathymetry of bedrock, sediment deposits, and tectonic structure provide geologic information that is essential to hazard assessment, regional sediment management, and coastal and marine spatial planning at Federal, State, and local levels, as well as to future research on the geomorphic, sedimentary, tectonic, and climatic record of southeastern Alaska. These data and information are intended for science researchers, students from elementary through college, policy makers, and the general public.
Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-622-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology.
20140507
20140522
ground condition at time data were collected
None planned
-148.571422
-147.780702
59.713571
59.470441
USGS Metadata Identifier
USGS:5c5cb952e4b0fe48cb312520
ISO 19115 Topic Category
geoscientificInformation
imageryBaseMapsEarthCover
Data Categories for Marine Planning
Bathymetry and Elevation
USGS Thesaurus
bathymetry
bathymetry measurement
sea-floor characteristics
geospatial datasets
marine geophysics
multibeam sonar
Marine Realms Information Bank (MRIB) keywords
seabed
acoustic methods
mapping
geophysics
None
U.S. Geological Survey
USGS
Coastal and Marine Hazards and Resources Program
CMHRP
Pacific Coastal and Marine Science Center
PCMSC
Geographic Names Information System (GNIS)
State of Alaska
Pacific Ocean
Gulf of Alaska
Prince William Sound
Montague Island
Montague Strait
Dangerous Passage
Knight Island Passage
Icy Bay
Nassau Bay
Jackpot Bay
Whale Bay
Bainbridge Passage
Port Bainbridge
NGA GEOnet Names Server (GNS)
North Pacific Ocean
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
https://www.sciencebase.gov/catalog/file/get/5c5cb952e4b0fe48cb312520?name=2014-622-FA_Montague_UTM6N_10m_bathymetry_map.gif&allowOpen=true
Map showing bathymetric terrain grid southwest of Montague Island
GIF
Caris HIPS and SIPS (ver. 9) and ArcMap (ver. 10.3.1) on a Windows 7 computer
Daniel S. Brothers
Peter J. Haeussler
Lee Liberty
David Finlayson
Eric Geist
Keith Labay
Mike Byerly
2016
A submarine landslide source for the devastating 1964 Chenega tsunami, southern Alaska
Brothers and others, 2016, A submarine landslide source for the devastating 1964 Chenega tsunami, southern Alaska: Earth and Planetary Science Letters, v. 438, p.112-121.
https://doi.org/10.1016/j.epsl.2016.01.008
Data were collected using a 100-kHz Reson 7111 multibeam echosounder with depth resolution of 3cm. Soundings were corrected real-time using inputs from a vehicle motion sensor and corrected for water column sound velocity variations using sound velocity values calculated from CTD casts. Accuracies of final products may be lower due to total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
No formal logical accuracy tests were conducted.
Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
The stated accuracy of the Applanix POS-MV post-processed horizontal positional accuracy is about 0.1 m, with roll and pitch stated accuracies of about 0.02 degrees (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-WaveMaster-II.pdf). Accuracies of final products may be lower due to total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
The stated accuracy of the Applanix POS-MV post-processed vertical positional accuracy is about 0.2 m (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-WaveMaster-II.pdf). Accuracies of final products may be lower due to total propagated uncertainties of the mapping systems, which include sonar system, position and motion compensation system, and navigation, as well as data processing that includes sounding cleaning, gridding, and datum transformations.
In 2014, the U.S. Geological Survey (USGS), in cooperation with the Alaska Department of Fish and Game (ADFG), mapped offshore the southwest corner of Montague Island and near Chenega Alaska. A 100-kHz Reson 7111 multibeam echosounder was pole-mounted to the ADFG R/V Solstice, and an Applanix POS-MV (Position and Orientation System for Marine Vessels) was used to position the vessel during data collection where it also accounted for vessel motion such as heave, pitch, and roll. The POS-MV also recorded position and vessel motion parameters for later post-processing. Soundings were corrected real-time using inputs from the POS-MV and corrected for water column sound velocity variations using sound velocity values calculated from CTD casts. Reson 7111 line files were imported into Caris HIPS and SIPS processing software where the data were cleaned for obvious errors and gridded into 10-m resolution bathymetry grids. The grids were exported to ASCIIRaster files in UTM, zone 6, WGS84 coordinates.
20190215
Edits were made to standardize a few of the "None" keywords.
20190620
Susan A Cochran
U.S. Geological Survey, Pacific Coastal and Marine Science Center
mailing and physical
2885 Mission St.
Santa Cruz
CA
95060
United States
831-460-7545
scochran@usgs.gov
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
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
Grid Cell
4419
2603
Universal Transverse Mercator
6N
0.999600
-147.000000
0.000000
500000.000000
0.000000
coordinate pair
10.000000
10.000000
Meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
Mean Lower Low Water
0.1
meters
Explicit elevation coordinate included with horizontal coordinates
Value
depth relative to Mean Lower Low Water
Producer defined
10-m resolution merged Southwest Montague Island, Gulf of Alaska bathymetry grid was originally archived as a TIFF image with the following attributes. >Cell size = 10.0, 10.0 >Number of rows = 4419 >Number of columns = 2630 >Data type = floating point >Boundary >Xmin = 6619775.000122 >Xmax = 411580.000122 >Ymin = 455770.000122 >Ymax = 6593475.00012 >Statistics >Minimum value = -232.86999511171875 >Maximum value = -25.20025062561035 >Mean = -147.940877020997 >Standard deviation = 55.2710699552992 >Coordinate system description >Projection UTM >Zone 06 >Datum NAD83 >Vertical Reference MLLW >Units meter
U.S. Geological Survey
U.S. Geological Survey - ScienceBase
mailing and physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
These data are available in TIFF format, including a tiff world file (.tfw), and accompanied by FGDC-compliant metadata and a browse graphic.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
geoTIFF
ArcMap (version 10.3.1)
Zip file contains the TIFF (.tif), the tiff world file (.tfw), an XML (.xml) version of the metadata, and a browse graphic.
zip command in the Unix command line
14.34
https://www.sciencebase.gov/catalog/file/get/5c5cb952e4b0fe48cb312520
https://www.sciencebase.gov/catalog/item/5c5cb952e4b0fe48cb312520
https://doi.org/10.5066/P9K1YQ35
Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file containing all files. The second link points to a page with the geoTIFF, metadata, and browse graphic. The third link points to a landing page for the entire data release.
None.
The downloadable data file has been compressed with the "zip" command and can be unzipped with WinZip (or other tool) on Windows systems. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing an Esri ASCIIRaster file.
20201019
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-427-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998