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A new field campaign conducted in 2016 - 2017 to obtain accurately located sediment samples and seafloor images to complement the original bottom sediment data were used to improve surficial geology maps of the New Hampshire continental shelf. The new sites were specifically targeted in areas where high-resolution MBES bathymetry existed or surficial features warranted further ground truth for evaluation. This effort was designed to enhance geological maps and aid in the development of new algorithms to utilize acoustics to aid sediment classification of the seafloor. |
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A new field campaign conducted in 2016 - 2017 to obtain accurately located sediment samples and seafloor images to complement the original bottom sediment data were used to improve surficial geology maps of the New Hampshire continental shelf. The new sites were specifically targeted in areas where high-resolution MBES bathymetry existed or surficial features warranted further ground truth for evaluation. This effort was designed to enhance geological maps and aid in the development of new algorithms to utilize acoustics to aid sediment classification of the seafloor. |
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The Surficial Geology of the Continental Shelf off New Hampshire: Morphological Features and Surficial Sediments reports, maps, and digital products was supported by the Bureau of Ocean Energy Management Award Number M14AC00010 and University of New Hampshire/National Oceanic and Atmospheric Administration Joint Hydrographic Center Award Number NA10NOS4000073. |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>Seafloor videography collected off the New Hampshire continental shelf was recorded with a fabricated drop camera consisting of and HD Delta vision camera mounted 0.4 m from the seafloor when in its vertical position. The base of the frame was 0.3 m by 0.3 m and was divided into 2 cm increments that provide a scale on all sides. The camera had a 1.2 mm or better pixel resolution. The ship's global positioning system (GPS) was recorded during sampling and marked each time seafloor was in contact (touchdowns) or when the camera framework was on its side (tipped) providing a plain view and profile view of the seafloor respectively. VLC media player was utilized to subsample seafloor images and combined with ship positions to construct this data base. Point feature class vector tables are separated by positions within previous multibeam echosounder surveys conducted by the University of New Hampshire. In some instances video from UNH CCOM/JHC OE 972 Hydrographic Field Course surveys was collected immediately following sonar data collections.</SPAN></SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None</SPAN></P></DIV></DIV></DIV> |
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NHS_2015 |
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["environment","imageryBaseMapsEarthCover","location","oceans","North Atlantic","New Hampshire Continental Shelf","Seafoor Images","Seafloor Video","UNH","CCOM/JHC","BOEM","NOAA"] |
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150000000 |
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