High-resolution geophysical and sampling data collected at the mouth of Connecticut River, Old Saybrook to Essex, Connecticut, 2012, USGS Field Activity 2012-024-FA

Field activity number 2012-024-FA
Version 1
Area of operation Connecticut River, CT
Dates 2012
Chief scientist David S. Foster and Christopher R. Sherwood

Suggested citation:Ackerman, S.D., Foster, D.S., Moore, E.M., Irwin, B.J., Blackwood, D., and Sherwood, C.R., 2017, High-resolution geophysical and sampling data collected at the mouth of Connecticut River, Old Saybrook to Essex, Connecticut, 2012, USGS Field Activity 2012-024-FA : U.S. Geological Survey data release. https://doi.org/10.5066/F7PG1Q7V

Abstract: A geophysical and geological survey was conducted at the mouth of the Connecticut River from Old Saybrook to Essex, Connecticut, in September 2012. Approximately 230 linear kilometers of digital Chirp subbottom (seismic-reflection) and 234-kilohertz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, riverbed photographs, and (or) video at 88 sites within the geophysical survey area. Sediment grab samples were collected at 72 of the 88 sampling sites, video was acquired at 68 sites, and photographs of the river bottom were taken at 38 sites. These survey data are used to characterize the riverbed by identifying sediment-texture and riverbed morphology. More information can be found on the web page for the Woods Hole Coastal and Marine Science Center field activity: https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-024-FA. Data collected during the 2012 survey can be obtained here: https://doi.org/10.5066/F7PG1Q7V.

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Bathymetry

2012-024-FA_SWATHPlusTracklines:
Trackline navigation for the SWATHplus-M sonar along which bathymetric and backscatter data were collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, polyline shapefile).
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2012-024-FA_SWATHPlusTracklines.zip
2012-024-FA_Bathymetry2m:
Bathymetric data from the SWATHplus-M interferometric-sonar collected by the USGS in the Connecticut River in 2012 (UTM, zone 18N, 32-bit floating point GeoTIFF image and 32-bit (4 8-bit channels RGBA) depth-colored hillshaded GeoTIFF image).
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2012-024-FA_Bathymetry2m.zip

Backscatter

2012-024-FA_Backscatter1m:
Backscatter data from the SWATHplus-M interferometric-sonar collected by the USGS in the Connecticut River in 2012 (UTM, zone 18N, 8-bit GeoTIFF).
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2012-024-FA_Backscatter1m.zip

Seismics

2012-024-FA_SeismicTracklines:
Shot point navigation at 500-shot intervals for tShot point navigation at 500-shot intervals for the Edgetech SB-424 chirp subbottom profiler data collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, point shapefile).
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2012-024-FA_SeismicTracklines.zip
2012-024-FA_SeismicShot500:
Shot point navigation at 500-shot intervals for the Edgetech SB-424 chirp subbottom profiler data collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, point shapefile, 500 shot and unique shot point navigation included both in CSV file format).
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2012-024-FA_SeismicShot500.zip
2012-024-FA_SeismicImages:
Images of Edgetech SB-424 chirp subbottom profiler data collected by the USGS in the Connecticut River in 2012 (PNG image format).
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2012-024-FA_SeismicImages.zip

Bottom Photographs and Video

2012-024-FA_SEABOSSphotos:
Location of bottom photographs along with images collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, JPEG images and Esri point shapefile).
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2012-024-SEABOSSphotos.zip
2012-024-FA_SEABOSSvideos:
Location of bottom video collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, MP4 files, and Esri point shapefile).
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2012-024-FA_SEABOSSvideos.zip

Samples

2012-024-FA_samples:
Location and analyses data of sediment samples collected by the USGS in the Connecticut River in 2012 (Geographic, WGS 84, point shapefile and CSV file formats).
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2012-024-FA_samples.zip

Navigation

2012-024-FA_HYPACK:
Text files of the RTK-GPS and DPGS navigation collected by the USGS in the Connecticut River in 2012 (WGS 84, HYPACK ASCII text file formats).
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2012-024-FA_HYPACK.zip
2012-024-FA_SamplingNav:
Text files of the DPGS navigation collected by the USGS in the Connecticut River in 2012 during the sampling survey (WGS 84, ASCII text file formats).
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2012-024-FA_SamplingNav.zip

Logs

2012-024-FA_logbook:
Logbook of notes from data acquisition maintained by the USGS science and technical staff in the Connecticut River in 2012 during the field activity 2012-024-FA (PDF – scan of an Excel spreadsheet).
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2012-024-FA_logbook.zip