| Identifier | 2018-001-FA | ||||||||
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| Purpose | To collect geologic framework information from inner shelf and inlet (where possible) for coastal-change studies | ||||||||
| Location | Little Egg Inlet, New Jersey, United States, Atlantic Ocean | ||||||||
| Summary | High-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, NJ was conducted from May 31 to June 10, 2018 as part of a collaborative effort between the U.S. Geological Survey and Stockton University. The goal of these mapping surveys was to provide high-quality data needed to build scientific knowledge of the evolution and behavior of the New Jersey barrier island system. Multibeam bathymetry and backscatter data were collected along 741 kilometers of tracklines (~200 square kilometers) of the coastal sea floor to regionally define its depth and morphology, as well as the character and distribution of sea-floor sediments. Approximately 690 kilometers of seismic-reflection profile data were also collected to define the thickness and structure of sediment deposits in the inlet and offshore. | ||||||||
| Info derived | surficial geology, stratigraphy, Holocene sed thickness, depth to transgressive UC, etc | ||||||||
| Comments | Funding project is LQ00-GHY2000. Work on shelf will likely reqire a larger vessel than Rafael -- one possibility is the RV Arabella (Rutgers). USGS funding is firm. Potential reimbursable $$ from USFWS *might* expand the scope of mapping. | ||||||||
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| Organization |
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
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| Principal investigators | Walter Barnhardt | ||||||||
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| Data category: | Seismics, Sonar |
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| Data type: | Sub Bottom Profiler, Multibeam, Sound Velocity |
| Equipment | Usage description | Data types | Datasets |
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| AML MVP30 | Sound Velocity | 1 | |
| Edgetech chirp subbottom profiler 512i | Sub Bottom Profiler | 1 | |
| Reson T20-P | Multibeam, Water column reflectivity | 3 |
| Dataset name | Equipment | Description | Dataset contact |
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| 2018-001-FA_MVP_data | AML MVP30 | Sound velocity profile data from an AML Oceanographic MVP30 collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA (PNG images, CSV text, ASVP text, and point shapefile, GCS WGS 84) | Seth Ackerman |
| 2018-001-FA_SB512i | Edgetech chirp subbottom profiler 512i | Chirp seismic reflection data from the Edgetech 512i collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS field activity 2018-001-FA (shotpoints point shapefile, survey trackline shapefile, PNG profile images, and SEG-Y trace data) | Seth Ackerman |
| 2018-001-FA_T20P_Backscatter_2m.tfw | Reson T20-P | Multibeam backscatter data collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA, using a dual-head Reson T20-P multibeam echosounder (8-bit GeoTIFF, UTM Zone 18N, WGS 84, 2 meter resolution) | Seth Ackerman |
| 2018-001-FA_T20P_Bathymetry_4m_NAVD88 | Reson T20-P | Multibeam bathymetric data collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA, using a dual-head Reson T20-P multibeam echosounder (32-bit GeoTIFF, UTM Zone 18N, NAD 83, NAVD 88 Vertical Datum, 4-m resolution) | Seth Ackerman |
| 2018-001-FA_T20P_Tracklines | Reson T20-P | Multibeam Echosounder, Reson T-20P tracklines collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA (Esri polyline shapefile, GCS WGS 84) | Seth Ackerman |
