Bathymetry Data, 2014-2015, Cape Cod National Seashore

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This dataset shows the bathymetry data collected during acoustic surveys completed within and adjacent to the boundaries of Cape Cod National Seashore (CACO) from 2014-2015. Full coverage sidescan and partial coverage bathymetry data were collected using an Edgetech 6205 Phase-Measuring Sidescan Sonar. In total, 668 hectares were mapped at primarily 20 – 40 meter line spacing and 50 meter swath range to allow overlap of lines.

Mapping Extent for Bathymetry Data, 2014-2015, Cape Cod National Seashore

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This dataset shows the extent of bathymetry data collected during acoustic surveys completed within and adjacent to the boundaries of Cape Cod National Seashore (CACO) from 2014-2015. Full coverage sidescan and partial coverage bathymetry data were collected using an Edgetech 6205 Phase-Measuring Sidescan Sonar. In total, 668 hectares were mapped at primarily 20 – 40 meter line spacing and 50 meter swath range to allow overlap of lines.

Bathymetry Data, 2014-2015, Gateway National Recreation Area

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The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900 kHz. The 4125 Towfish utilizes EdgeTech’s Full Spectrum CHIRP technology to produce higher resolution images than a non-CHIRP system. EdgeTech Discovery Software was used to acquire the side scan sonar data using the JSF format at a resolution of about 2.3 cm. All JSF files collected using EdgeTech’s Discover Software were processed using John Gann’s Chesapeake Technology SonarWiz5. Dimensions of contacts should be considered accurate to +/- 30% of the measured dimensions. This system also records the direct arrival intensity data.

Bathymetry Data, 2014-2015, Gateway National Recreation Area

공공데이터포털

The side scan sonar survey was done simultaneously with the bathymetry swath survey and used an EdgeTech Model 4125 Towfish bow-mounted from Lookdown at 400 and 900 kHz. The 4125 Towfish utilizes EdgeTech’s Full Spectrum CHIRP technology to produce higher resolution images than a non-CHIRP system. EdgeTech Discovery Software was used to acquire the side scan sonar data using the JSF format at a resolution of about 2.3 cm. All JSF files collected using EdgeTech’s Discover Software were processed using John Gann’s Chesapeake Technology SonarWiz5. Dimensions of contacts should be considered accurate to +/- 30% of the measured dimensions. This system also records the direct arrival intensity data.

Cape Cod National Seashore 1m Depth Contours, 2015

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This dataset shows contours created from acoustic surveys completed within and adjacent to the boundaries of Cape Cod National Seashore (CaCo) from Race Point to Long Point in Provincetown, Massachusetts, June 19 to August 7, 2015. Full coverage sidescan and partial coverage bathymetry data were collected using an Edgetech 6205 Phase-Measuring Sidescan Sonar. In total, 568 hectares were mapped at primarily 20 – 40 meter line spacing and 50 meter swath range to allow overlap of lines.

Ground-truthing images, 2014-2015, Cape Cod National Seashore

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Still images taken in conjunction with biological and sediment grab samples in order to describe the benthic invertebrate community and sediment characteristics of the Pleasant Bay, Nauset Marsh, Wellfleet harbor and Herring Cove Coastal Systems. These data are a part of the Submerged Marine Habitat Mapping Studies project. One cast to the seafloor was conducted at each station to collect conductivity, temperature and depth (CTD) data after the boat had been anchored at the station, but before collecting the grab samples.

Ground-truthing images, 2014-2015, Cape Cod National Seashore

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Still images taken in conjunction with biological and sediment grab samples in order to describe the benthic invertebrate community and sediment characteristics of the Pleasant Bay, Nauset Marsh, Wellfleet harbor and Herring Cove Coastal Systems. These data are a part of the Submerged Marine Habitat Mapping Studies project. One cast to the seafloor was conducted at each station to collect conductivity, temperature and depth (CTD) data after the boat had been anchored at the station, but before collecting the grab samples.

Cape Cod National Seashore Side-scan Sonar Data, 2015

공공데이터포털

This dataset contains acoustic sonar data completed within and adjacent to the boundaries of Cape Cod National Seashore (CaCo) from Race Point to Long Point in Provincetown, Massachusetts, June 19 to August 7, 2015 using an Edgetech 6205 Phase-Measuring Sidescan Sonar collected with Edgetech Discover Baythymetric version 1.01 and Hypack 2015. In total, 446 .jsf and 457 .hsx were created covering 577 hectares were mapped at primarily 20 – 40 meter line spacing and 50 meter swath range to allow overlap of lines.

Cape Cod National Seashore Sonar Cruise Tracklines, 2015

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This vector data set contains the cruise tracklines from acoustic surveys completed within and adjacent to the boundaries of Cape Cod National Seashore (CaCo) from Race Point to Long Point in Provincetown, Massachusetts, June 19 to August 7, 2015. Full coverage sidescan and partial coverage bathymetry data were collected using an Edgetech 6205 Phase-Measuring Sidescan Sonar. In total, 568 hectares were mapped at primarily 20 – 40 meter line spacing and 50 meter swath range to allow overlap of lines.

Sub-bottom Survey Cruise Tracklines, 2015, Cape Cod National Seashore

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This vector data set contains the cruise tracklines from sub-bottom seismic surveys completed within and adjacent to the boundaries of Cape Cod National Seashore (CaCo) from Race Point to Long Point in Provincetown, Massachusetts.