U.S. Geological Survey
2008
5 meter multibeam-sonar backscatter GeoTIFF mosaic of the offshore portion of the Cape Ann to Salisbury Beach Massachusetts survey area (RESON_BS5M.tif, UTM Zone 19, WGS84)
1.0
remote-sensing image
Open-File Report
2007-1373
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20071373
http://pubs.usgs.gov/of/2007/1373/GIS/raster/backscatter/reson_bs5m.zip
Walter A. Barnhardt
Brian D. Andrews
Seth D. Ackerman
Wayne E. Baldwin
Christopher J. Hein
2008
High-Resolution Geological Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts.
1.0
Open-File Report
2007-1373
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2007/1373/
These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center. Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of sea-floor geology are important first steps toward protecting fish habitat, delineating marine reserves, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters (5-30m deep) of Massachusetts between the New Hampshire border and Cape Cod Bay.
Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports<http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html>. This spatial dataset is from the Cape Ann and Salisbury Beach Massachusetts project area. They were collected in two separate surveys in 2004 and 2005 and cover approximately 325 square kilometers of the inner continental shelf. High resolution bathymetry and backscatter intensity were collected in 2004 and 2005. Seismic profile data, sediment samples and bottom photography were also collected in 2005.
The purpose of these data is to collect relative backscatter reflectance of the seafloor with a hull-mounted RESON 8101 multibeam echo sounder in the offshore survey area.
20040223
20040323
ground condition
None planned
-70.798877
-70.585305
42.885321
42.667022
USGS Metadata Identifier
USGS:d7aca850-089e-4966-beba-67768f68aa19
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Woods Hole Science Center
WHSC
Backscatter
Seafloor
Marine Geology
Multibeam Echo Sounder
field activity serial number 04015
Science Applications International Corporation
SAIC
RESON 8101
R/V OceanExplorer
GeoTIFF
grayscale
ISO 19115 Topic Category
oceans
geoscientificInformation
imageryBaseMapsEarthCover
USGS Thesaurus
sea-floor acoustic reflectivity
image mosaics
multibeam sonar
marine geophysics
geospatial datasets
None
North America
United States
Atlantic Ocean
Gulf of Maine
Bigelow Bight
Merrimack River
Ipswich Bay
Massachusetts
Cape Ann
Salisbury Beach
Plum Island
None
Seafloor
sea floor
None
2004
None
The intended scale of these data is 1:25,000. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Brian Andrews
U.S. Geological Survey
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2348
508-457-2310
bandrews@usgs.gov
http://pubs.usgs.gov/of/2007/1373/GIS/browse_jpg/reson_bs5m.jpg
black and white thumbnail image of backscatter mosaic
JPEG
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500
Walter A. Barnhardt
Brian D. Andrews
Bradford Butman
2006
High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts
Open-File Report
2005-1293
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2005/1293/
Seth D. Ackerman
Bradford Butman
Walter A. Barnhardt
William W. Danforth
James M. Crocker
2006
High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts
Open-File Report
2006-1008
Reston, VA
U.S. Geological Survey
http://pubs.usgs.gov/of/2006/1008/
Science Applications International Corporation (SAIC)
20040430
Southern Merrimack Embayment Multibeam Survey, Survey Report
SAIC Doc 04-TR-004
Newport, Rhode Island
SAIC
Survey Report
http://pubs.usgs.gov/of/2007/1373/html/appendix5.html
Beaudoin, J.
Hughes Clarke, J.E.
van den Ameele, E.
Gardner, J.,
2002
Geometric and radiometric correction of multibeam backscatter derived from RESON 8101 systems
Canadian Hydrographic Conference Proceedings CDROM
http://www.omg.unb.ca/omg/papers/Beaudoin_Multibeam_Backscatter_Reson_8101_Systems.pdf
Information unavailable from original metadata.
Data are included from all main scheme and gap file survey lines with the exception of line OEMBA04076_D07. The backscatter collected along this line was not processed because of complications with merging the navigation. Data collected from patch tests and cross lines are not included in this mosaic.
All data collected on the R/V OceanExplorer used Differential Global Positioning System (DGPS) from U.S. Coast Guard land stations. Vessel positioning confidence checks were done by comparing the location data recorded from the POS/MV to location data recorded from the Trimble DGPS to ensure that both DGPS receivers were recording the same location at the same time.
Information unavailable from original metadata.
unpublished material
Raw data acquisition
The source citation information is inferred from other information in the metadata and was not part of the original metadata file. Source time period of content was inferred from the time period of the dataset.
Information unavailable from original metadata.
20050908
20050916
Information unavailable from original metadata. Assuming ground condition and the dates are assumed to be the same as the dataset.
Information unavailable from original metadata.
System Setup and Operation:
The offshore bathymetric and backscatter data were collected aboard the R/V OceanExplorer in 2004 using a hull-mounted RESON 8101 multibeam echo sounder operating at a frequency of 240 kHz. The survey comprised 328 main scheme lines at 50, 75, 100, 125, 150 and 200-meter spacings and 6 cross lines at 3 km spacing. The RESON 8101 used cutoff angles set at 57 degrees (114 degrees total swath) in order to provide three times the water depth per swath. Vessel speed for the survey was nominally 9 knots.
The majority of the multibeam data were initially edited onboard the vessel, using SAIC's Multi View Editor (MVE) program. This tool is a geo-referenced editor, which allows for both plan and profile views with each beam in its true geographic position and depth. Each data file was edited to remove noise, fish, etc. At the end of each leg, both the raw and processed data were backed up onto 4mm tapes and shipped to the Data Processing Center in Newport, RI.
Once the data were in Newport and had been extracted to local machines, track lines were created by extracting the sounder position from the multibeam data. The tracks were reviewed to confirm that no errors in navigation existed and that the tracks extended to the outermost bounds of the survey area.
200403
Science Applications International Corporation (SAIC)
mailing and physical address
221 Third St.
Newport
RI
02840
USA
401-847-4210
401-849-1585
Processed and edited multibeam line files were delivered to USGS by SAIC in GSF (Generic Sensor Format) format.
20040430
Bradford Butman
U.S. Geological Survey
Oceanographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543
USA
508-548-8700 x2212
505-457-2310
bbutman@usgs.gov
GSF files were converted to UNB OMG (University of New Brunswick, Ocean Mapping Group) SwathEd format using new_unravel_gsf script developed by Jonathan Beaudoin and the University of New Brunswick, Ocean Mapping Group. This SwathEd script converted the GSF files for each line file and unraveled (converted) them into SwathEd format. This unravel process also normalized the effects of power and gain changes as described in Beaudoin and others 2002.
200801
Brian Andrews
U.S. Geological Survey
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2348
508-457-2310
bandrews@usgs.gov
SwathEd Mosaic Process:
An output file is created ( filename_ss_arc) containing the processed backscatter data (*.ss). These files were mosaicked in SwathEd using the command:
mos2 -maxdist 50 -maxaxi 15 cape_ann.mos ../ss/JDAY/*.ss*
Mosaic file (reson_5m.mos) was converted to a TIFF with the command:
rawtopgm -headerskip 1024 429 699 cape_ann.mos | pnmtotiff > reson_5m.tif. The TIFF file "reson_5m.tif" was georeferenced by creating a TIFF world file (reson_5m.tfw) in a text editor and using the upper left bounding coordinates (UTM 19 WGS84) and resolution from the mosaic process.
200801
Brian Andrews
U.S. Geological Survey
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2348
508-457-2310
bandrews@usgs.gov
Convert to GeoTIFF:
Convert "reson_bs5m.tif" (with tfw file) to a GeoTIFF using GeoTIFFExamine (Mentor Software ver. 1.02). This process reads the georeferencing information from the tfw file and embeds it into the header of the TIFF.
200801
Brian Andrews
U.S. Geological Survey
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2348
508-457-2310
bandrews@usgs.gov
Edits to the metadata were made to fix any errors that MP v 2.9.30 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. The source citation information is inferred from other information in the metadata and was not part of the original metadata file. Source time period of content was inferred from the time period of the dataset. Other minor edits were probably performed (title, publisher, publication place, etc.). 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.
20151106
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543
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
4781
3399
1
Universal Transverse Mercator
19
0.999600
-69.000000
0.000000
500000.000000
0.000000
row and column
5.001120
5.001120
meters
D_WGS_1984
WGS_1984
6378137.000000
298.257224
reson_bs5m.tif.vat
Value Attribute Table
ESRI
OID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
VALUE
Value of pixel in Digital number units
ESRI
2
255
COUNT
Count or number of pixels
ESRI
Information unavailable from original metadata.
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). The background no data value outside the mosaic is 0. The no data value inside the bounds of the mosaic is set to 255 in the missing line OEMBA04076_D07. The data range of good pixel values is 2-254.
U.S. Geological Survey
Brian Andrews
U.S. Geological Survey, Woods Hole Science Center
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543
USA
508-548-8700 x2348
bandrews@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.
TIFF
GeoTIFF
File contains RESON 8101 multibeam backscatter imagery from the offshore portion of the Cape Ann to Salisbury Beach Massachusetts survey area.
WinZip
5.6
http://pubs.usgs.gov/of/2007/1373/GIS/raster/backscatter/reson_bs5m.zip
DVD-ROM
4.75
Gbytes
UDF
None
These data in a tiled GeoTIFF format are distributed as a compressed WinZip file. The user must have software capable of uncompressing a WinZip (ver. 9.0) file and viewing a tiled GeoTIFF image file.
20240318
Brian Andrews
U.S. Geological Survey
Geographer
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2348
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