U.S. Geological Survey
2010
GeoTIFF image of acoustic backscatter collected by the U.S. Geological Survey off of Marysville, Michigan within the St. Clair River, 2008 (GeoTIFF, MVILLE_05M.TIF).
1.0
remote-sensing image
Open-File Report
2010-1035
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20101035
https://pubs.usgs.gov/of/2010/1035/html/gis.html
https://pubs.usgs.gov/of/2010/1035/gis_catalog/mosaic/mville_05m.zip
Jane F. Denny
David S. Foster
Charles R. Worley
Barry J. Irwin
2010
Geophysical data collected from the St. Clair River between Michigan and Ontario, Canada, 2008-016-FA
1.0
online
Open-File Report
2010-1035
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2010/1035/
In 2008, the U.S. Geological Survey (USGS), Woods Hole Coastal and Marine Science Center (WHCMSC), in cooperation with the U.S. Army Corps of Engineers conducted a geophysical and sampling survey of the riverbed of the Upper St. Clair River between Port Huron, MI, and Sarnia, Ontario, Canada. The objectives were to define the Quaternary geologic framework of the St. Clair River to evaluate the relationship between morphologic change of the riverbed and underlying stratigraphy. This report presents the geophysical and sample data collected from the St. Clair River, May 29-June 6, 2008 as part of the International Upper Great Lakes Study, a 5-year project funded by the International Joint Commission of the United States and Canada to examine whether physical changes in the St. Clair River are affecting water levels within the upper Great Lakes, to assess regulation plans for outflows from Lake Superior, and to examine the potential effect of climate change on the Great Lakes water levels ( http://www.iugls.org). This document makes available the data that were used in a separate report, U.S. Geological Survey Open-File Report 2009-1137, which detailed the interpretations of the Quaternary geologic framework of the region. This report includes a description of the suite of high-resolution acoustic and sediment-sampling systems that were used to map the morphology, surficial sediment distribution, and underlying geology of the Upper St. Clair River during USGS field activity 2008-016-FA . Video and photographs of the riverbed were also collected and are included in this data release. Future analyses will be focused on substrate erosion and its effects on river-channel morphology and geometry. Ultimately, the International Upper Great Lakes Study will attempt to determine where physical changes in the St. Clair River affect water flow and, subsequently, water levels in the Upper Great Lakes.
This acoustic backscatter mosaic will be used to identify bedforms and surficial sediment distribution within the Upper St. Clair River, offshore of Marysville, Michigan. The mosaic will be correlated to sediment samples of the river floor and bottom video and photographs in order to interpret the acoustic facies.
20080601
ground condition
None planned
-82.460827
-82.448316
42.933068
42.922105
USGS Metadata Identifier
USGS:39344ca0-b10d-439e-b944-fc843160c5b8
None
U.S. Geological Survey
USGS
Woods Hole Coastal and Marine Science Center
WHCMSC
Coastal and Marine Geology Program
CMGP
surficial sediment
sidescan-sonar
interferometry
SEA SWATHplus 234 kHz
acoustic backscatter
WHCMSC field activity serial number 08016
GeoTIFF Image
USGS R/V Rafael
ISO 19115 Topic Category
geoscientificInformation
imageryBaseMapsEarthCover
inlandWaters
USGS Thesaurus
lakebed acoustic reflectivity
image mosaics
interferometric sonar
geophysics
geospatial datasets
None
North America
United States
Michigan
Great Lakes
Upper Great Lakes
Lake Huron
St. Clair River
Upper St. Clair River
Marysville, Michigan
Canada
Ontario
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.
Jane Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
https://pubs.usgs.gov/of/2010/1035/gis_catalog/mosaic/mville_05m_bs_sm.jpg
Thumbnail image of acoustic backscatter
JPEG
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.2.6.1500
David S. Foster
Jane F. Denny
2009
Quaternary Geologic Framework of the St. Clair River between Michigan and Ontario, Canada
1.0
on-line document
Open-File Report
2009-1137
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/of/2009/1137/
Jonathan Beaudoin
2002
Hitchhiker's Guide to Swathed...
online
Fredericton, New Brunswick
University of New Brunswick, Ocean Mapping Group
http://www.omg.unb.ca/~jonnyb/processing/definitive_swathed/index.html
All acoustic backscatter data were collected during USGS cruise 08016 using a SWATHplus 234-kHz swath bathymetric system and an Octopus F180R Attitude and Positioning System. Quality control was conducted during processing of the data. Any spurious data or artifacts were removed or minimized.
Lines 84 - 91 were used to generate the final GeoTIFF mosaic, mville_05m.tif.
Differential Global Positioning System (DGPS) navigation data were acquired with the forward, or primary, Octopus F180R Attitude and Positioning system DGPS antenna and transmitted via a network connection to the SWATHplus data collection software. The F180R Attitude and Positioning system uses 2 L1 antennas for position and heading and an Inertial Measurement Unit (IMU) for motion sensing. The F180R IMU is mounted on the rigid sidemount used to deploy the SWATHplus bathymetric system, and is located directly above the SWATHplus transducers. The F180R antennas are mounted on a rigid horizontal pole, 3 meters above the F180R IMU, offset in a forward/aft configuration (see 'source contribution' for a full description of the F180R). DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station (http://www.navcen.uscg.gov/).
U.S. Geological Survey
unknown
Information unavailable from original metadata
disc
20080529
20080602
ground condition
Information unavailable from original metadata
Swath-bathymetric and acoustic-backscatter data were acquired with a SEA, Ltd., SWATHplus interferometric sonar operating at a 234-kHz frequency (http://www.sea.co.uk/swathplus.aspx?nav=products). The SWATHplus transducer was mounted at the bow of the USGS R/V Rafael. Bathymetric data were acquired over variable swath widths ranging from 10 to 100 m, in water depths of about 1 to 25 m. A total of 109 km of swath bathymetric data were collected.
SWATHplus acquisition software (version 3.05.90) was used to digitally log the bathymetric data at a rate of 30 pings/second and 3,072 samples per swath (ping) in the SWATHplus SXR format. Data collection parameters are saved into a SWATHplus session file in SEA's SXS format. These files can be later used for data replay.
An Octopus F180R Attitude and Positioning system (see: <http://www.codaoctopus.com/motion/f180/index.asp>) recorded ship motion (heave, pitch, roll, and yaw). These data were transmitted via network connection to the SWATHplus data collection software. The Octopus F180R Inertial Measurement Unit (IMU) was mounted directly above the SWATHplus transducers, to minimize lever arm offsets that can lead to positioning errors. The F180R uses two L1 antennas for position and heading accuracy. The antennas are mounted on a rigid horizontal pole, 3 meters above the F180R IMU, with a horizontal separation of 1 meter and are offset from the IMU in a forward/aft configuration. The forward offset of the primary antenna from the IMU is 0.5 meters, with no port/starboard offset.
Eight sound-velocity profiles were acquired during survey operations at roughly 4-hr intervals using an Applied Microsystems SV Plus V2 Velocimeter (Applied Microsystems, 2008).
Raw SWATHplus (*sxr) files were unraveled using the University of New Brunswicks Ocean Mapping Group (OMG) SwathEd multibeam processing software (http://www.omg.unb.ca/~jhc/swathed/index.html)/ . The unravel process converts the raw *sxr file to OMG file formats for soundings and backscatter and stores navigation in binary and ASCII files. During the unravel backscatter is also converted to USGS Xsonar/Showimage file format (*. (backscatter) and *.nav files). The Xsonar/Showimage files are desampled to 1024 bytes/ping at 100-m swath, yielding resolution of 0.1m/pixel.
SwathEd (no version) (Beaudoin, 2002)
2009
Jane Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700x2311
5084572310
jdenny@usgs.gov
Xsonar/Showimage was used to process the backscatter. Slant range was corrected and data were normalized across swath using a beam pattern routine with the following parameters: 200 pings with a 50-ping overlap, generating *sb (slant-range and beam pattern) files. Navigation was not merged within the Xsonar/Showimage, as navigation data were merged during the unravel routine using SwathEd. Navigation data were plotted and viewed graphically within Xsonar/Showimage for quality assessment.
Xsonar/Showimage (no version)
2009
Jane Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700x2311
5084572310
jdenny@usgs.gov
An OMB SwathEd utility backToSwathed was used to convert the processed Xsonar/Showimage files (*.sb) back to OMG format (*.slr). The *.slr files were used to generate a backscatter mosaic using the following routines, with bounds defined within the make_blank routine:
-Create Blank Map Sheet at 0.5 meter resolution, UTM meters, Zone 17N, WGS84 (make_blank -prime 255 -8bit mosaic)
-Copy mosaic.blank to mosaic.mos mosaic.ran
-Mosaic the individual sonar lines (mos2 -maxdist 10 -custom_weight MOS_weights mosaic *.slr)
-Remove the 1024 byte header from the mosaic.mos file (dd if=mosaic.mos of=mosaic.raw bs=1024 skip =1)
-Convert the raw mosaic file to TIFF using Adobe Photoshop (CS3 10.0.1)
-A world file was generated for the TIFF image using the UNIX command vi
-GeoTIFF Examine, v. 1.01 (www.mentorsoftwareinc.com) was used to convert the TIFF image to a GeoTIFF.
Adobe Photoshop CS3 was used to apply a linear stretch to the mosaic. The data range (digital number) within the backscatter mosaic is 10 - 234; no data values are represented as 255.
2009
Jane Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
(508) 548-8700x2311
5084572310
jdenny@usgs.gov
Edits to the metadata were made to fix any errors that MP v 2.9.36 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.). The link to the data in the Distribution_Information section had to be fixed. Fixed link to browse graphic. Attempted to modify http to https where appropriate. Reordered the links in the identification section to have a landing page link as the first link. The source information was incomplete and had to be modified to meet the standard. The distribution format name was modified in an attempt to be more consistent with other metadata files of the same data format. 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.
20171018
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
USGS Thesaurus keywords added to the keyword section.
20180720
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
2401
2001
1
Universal Transverse Mercator
17
0.999600
-81.000000
0.000000
500000.000000
0.000000
row and column
0.500000
0.500000
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
The data range (digital number) within the backscatter mosaic is 10 - 234; no data values are represented as 255.
U.S. Geological Survey
Jane Denny
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02543
USA
508-548-8700 x2311
508-457-2310
jdenny@usgs.gov
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.
GeoTIFF
This WinZip (version 9.0) file contains a TIFF image and associated world file of backscatter mosaic collected within the St. Clair River between Michigan and Ontario, Canada, 2008
Use WinZip or pkUnzip
2
https://pubs.usgs.gov/of/2010/1035/gis_catalog/mosaic/mville_05m.zip
Data can be downloaded via the World Wide Web (WWW)
none
This Zip file contains a GeoTIFF image and world file. To utilize these data the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
20240318
U.S. Geological Survey
Jane F. Denny
Geologist
mailing and physical address
384 Woods Hole Road
Woods Hole
MA
02536
USA
508-548-8700 x2311
508-457-2310
whsc_data_contact@usgs.gov
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318)
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
none
none