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News Archive from the USGS-CZM Seafloor Mapping Program

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Monday, July 6, 2009

Cape Ann to Salisbury Beach Seafloor Mapping Data Published

CZM and USGS have published the first in a series of seafloor mapping reports, High-Resolution Geologic Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts. The report (USGS OFR 2007-1373) was prepared as part of the cooperative mapping program between CZM and USGS. Available online, the report contains geographic information system data, maps, and technical explanations of data collection, processing, and geologic interpretation. The next report in the series, Duxbury to Hull, is due out in 2010.

Screen shot of Massachusetts Office of Coastal Zone Management seafloor mapping website.
Cape Ann to Salisbury Beach USGS Open File Report 2007-1373

Thursday, June 18, 2009

Buzzards Bay Geophysical Survey

The USGS/CZM geological mapping project completed a cruise aboard the R/V Megan Miller in Buzzards Bay. We collected geophysical data along 3350 km of trackline. Full coverage bathymetry and backscatter data encompass approx. 350 sq. km, including 29 sq. km in eastern Vineyard Sound.

Screen shot of Massachusetts Office of Coastal Zone Management seafloor mapping website.

Saturday, December 20, 2008

MassCZM Adds New Seafloor Mapping Website

Our mapping partner, Massachusetts Office of Coastal Zone Management, has created a new seafloor mapping website. Check it out at: http://www.mass.gov/czm/seafloor/index.htm

Screen shot of Massachusetts Office of Coastal Zone Management seafloor mapping website.

Friday, October 24, 2008

Shallow Survey 2008 Conference - Portsmouth, NH

Several of us were in Portsmouth, NH, to attend the Shallow Survey 2008 (conference on high-resolution surveying in shallow water).

Shallow Survey 2008 conference logo.

Friday, August 29, 2008

Merrimack Embayment - coring survey

USGS completed a cruise aboard the R/V Connecticut to collect cores and subbottom profiles from the Merrimack Paleodelta and Jeffereys Ledge. These data will help reconstruct the depositional environments and determine sea-level history for the region.

USGS Survey ID 08023

Saturday, May 10, 2008

Western Cape Cod Bay - nearshore geophysical survey

We finished the nearshore geophysical survey offshore of Plymouth, MA in Western Cape Cod Bay on the USGS R/V Rafael. This completes the acoustic surveys for the Northern Cape Cod Bay project.

USGS Survey ID 08002

Thursday, September 13, 2007

South Shore & Cape Cod Bay - sampling & coring cruise

We completed a sampling survey aboard the R/V Connecticut to ground-truth the previously collected geophysical data. We used the USGS' SEABOSS sampling system to collect seafloor sediments, bottom photographs and video and a Rossfelder vibracorer for coring.

USGS Survey ID 07003

Thursday, August 9, 2007

Northern Cape Cod Bay - geophysical survey

The 2nd phase of the Northern Cape Cod Bay mapping was completed aboard the R/V Megan Miller. This cruise collected 100% coverage with swath bathymetry over an area of approximately 350 sq km as well as sidescan-sonar backscatter and seismic-reflection profiles along 1,300 linear kilometers.

USGS Survey ID 07002
Northern Cape Cod Bay (USGS Mapping Website)

Thursday, May 3, 2007

South Shore - nearshore geophysical survey

The 2nd phase of the South Shore mapping project was completed this week aboard the R/V Rafael. This cruise filled in areas not covered by 2006 Megan Miller survey, mostly in the shallow water along coast, from Green Harbor to Scituate, MA. We collected full coverage of swath bathymetry and sidescan-sonar backscatter as well as a closely spaced grid of seismic-reflection (subbottom) profiles. A total of 525 linear km of data covered approximately 57 sq km of the seafloor in water depths of 4-20 m.

USGS Survey ID 07001
South Shore Seafloor Project (Duxbury to Hull - USGS Mapping Website)

Friday, December 15, 2006

MA Seafloor Mapping Project Expands to South Shore and Cape Cod Bay

Since its beginning in 2003, the cooperative seafloor-mapping project in Massachusetts has mapped the geology of 897 km² (346 mi²) of the coastal ocean, mostly inside the 3-mi limit of State waters. The project, jointly undertaken by the U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management, has expanded to cover new areas this year and brought in several new partners.

The latest phase of mapping began in August 2006 with a 3-week research cruise aboard the R/V Megan Miller. The 100-ft vessel was outfitted with geophysical systems and two mobile laboratories that allowed for data acquisition and onboard processing in near-real time. The survey focused on shallow-water (less than 50 m deep), nearshore areas along the South Shore coast from Hull to Duxbury, where we collected more than 2,300 km of trackline geophysical data covering an area of 270 km².

Read the full story at:
Soundwaves Nov/Dec06 (USGS Coastal & Marine Geology Program newsletter)

Friday, September 15, 2006

Boston Harbor Seafloor Mapping Data Published

CZM and USGS have published the second in a series of seafloor mapping reports, High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts. The report (USGS OFR 2006-1008) was prepared as part of the cooperative mapping program between CZM and USGS, with hydrographic data provided by the NOAA. Available online, the report contains geographic information system (GIS) data, maps, and technical explanations of data collection, processing, and a discussion of the seafloor geology and topography of the study area. The first report, Nahant to Gloucester, was in released in February 2006.

Cover image of Boston Harbor and Approaches USGS Open File Report 2006-1008.
Boston Harbor and Approaches USGS Open File Report 2006-1008

CZ-mail October 2006 (MassCZM's monthly newsletter)

Saturday, August 26, 2006

South Shore & Cape Cod Bay - geophysical survey

We completed the 1st phase of mapping for the South Shore and Northern Cape Cod Bay survey areas this week aboard the R/V Megan Miller. Approximately 270 km² (104 mi²) of the inner shelf were mapped with high-resolution acoustic technologies including swath bathymetry; sidescan sonar backscatter; and seismic-reflection data.

Visit these links for more info:
Duxbury to Hull (USGS Mapping Website
Northern Cape Cod Bay (USGS Mapping Website)
CZ-mail August 2006 (MassCZM's monthly newsletter)

Friday, March 10, 2006

Nahant to Gloucester Seafloor Mapping Data Published

CZM and USGS have published the first in a series of seafloor mapping reports, High-Resolution Geologic Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts. The report (USGS OFR 2005-1293) was prepared as part of the cooperative mapping program between CZM and USGS. Available online, the report contains geographic information system data, maps, and technical explanations of data collection, processing, and geologic interpretation. The next report in the series, Boston Harbor and Approaches, is due out in September 2006.

Cover image of Nahant to Gloucester USGS Open File Report 2005-1293
Nahant to Gloucester USGS Open File Report 2005-1293

CZ-mail March 2006 (MassCZM's monthly newsletter)

Sunday, January 1, 2006

Federal/State Cooperative to Map Seafloor Geology Continues

Researchers at the U.S. Geological Survey (USGS) Woods Hole Coastal and Marine Science Center are producing high-resolution maps of the sea-floor geology off the Massachusetts coast, with a focus on the nearshore region in water depths of less than 40 m. The mapping program is a cooperative effort involving the USGS, the Massachusetts Office of Coastal Zone Management (CZM), and the National Oceanic and Atmospheric Administration (NOAA)...

Visit this link for the full story: Soundwaves Dec05/Jan06

Thursday, January 15, 2004

High-Resolution Geologic Mapping of the Shallow Seafloor off Massachusetts

The USGS Woods Hole Coastal and Marine Science Center, MassCZM & NOAA is conducting geophysical surveys to characterize the bottom morphology, surficial-sediment distribution, and subsurface geology in the shallow coastal waters off Massachusetts.

The long-term goal of this mapping effort is to produce high-resolution geologic maps that will be used in aggregate-resource and benthic-habitat studies by State and other Federal agencies. Three nearshore survey areas between Boston and the Massachusetts-New Hampshire State line were initially identified by CZM for study. These survey areas, which are inshore of the Stellwagen Bank multibeam-echosounder survey conducted previously by the USGS, include Boston Harbor and approaches, the South Essex Ocean Sanctuary, and the Southern Merrimack Embayment.

Read the full story at:
Soundwaves Dec 2003/Jan 2004 (USGS Coastal & Marine Geology Program newsletter)

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