Ultra-short baseline - navigation points and tracklines for Applied Acoustics EasyTrack Nexus 2 USBL data collected for ROV Global Explorer during USGS field activity 2017-001-FA

Dates

Publication Date: 2020
Start Date: 2017-05-08
End Date: 2017-05-11

Citation

Baldwin, W.E., Moore, E.M., Worley, C.R., Nichols, A.R., and Ruppel, C.D., 2020, Marine geophysical data collected to support methane seep research along the U.S. Atlantic continental shelf break and upper continental slope between the Baltimore and Keller Canyons during U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9Y1MSTN.

Summary

In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field activity 2017-001-FA, [...]

Summary

In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field activity 2017-001-FA, was conducted from May 4 to May 11, 2017, and acquired geophysical data to support remotely operated vehicle exploration of seep sites using the Global Explorer, which is operated by Oceaneering International, Inc. Geophysical operations during cruise 2017-002-FA from August 25 to September 6, 2017, were also focused on mapping water column methane plumes, sea-floor seep sites, and subseafloor strata, but primarily supported conductivity, temperature, and depth instrument deployment, surface-water methane-concentration mapping, and water-sampling operations as part of a collaborative study with the University of Rochester of the effect of methane seepage on ocean water biogeochemistry. The National Oceanic and Atmospheric Administration’s Office of Ocean Exploration and Research partially sponsored cruise 2017-001-FA, and the U.S. Department of Energy partially sponsored both cruises.

Contacts

Contact :: Wayne E Baldwin
Originator :: Wayne E Baldwin, Eric Moore, Charles R Worley, Alexander R Nichols, Carolyn Ruppel
Principal Investigator :: Carolyn Ruppel
USGS Program :: Coastal and Marine Hazards and Resources Program
Data Owner :: Woods Hole Coastal and Marine Science Center
USGS Mission Area :: Energy and Minerals
Distributor :: U.S. Geological Survey - ScienceBase

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Click on title to download individual files attached to this item.

2017-001-FA_ROVUSBLNav_meta.xml Original FGDC Metadata	View	38.27 KB	application/fgdc+xml
2017-001-FA_ROVUSBLNav_browse.jpg “ROV USBL navigation trackline at Chincoteague Ridge.”		53.15 KB	image/jpeg

Shapefile: 2017-001-FA_ROVUSBLNavPoints.zip
2017-001-FA_ROVUSBLNavPoints.CPG		5 Bytes
2017-001-FA_ROVUSBLNavPoints.dbf		1.41 MB
2017-001-FA_ROVUSBLNavPoints.prj		145 Bytes
2017-001-FA_ROVUSBLNavPoints.sbn		61.59 KB
2017-001-FA_ROVUSBLNavPoints.sbx		668 Bytes
2017-001-FA_ROVUSBLNavPoints.shp “Shapefile containing ROV USBL navigation points”		185.41 KB
2017-001-FA_ROVUSBLNavPoints.shx		53.04 KB

Shapefile: 2017-001-FA_ROVUSBLTracklines.zip
2017-001-FA_ROVUSBLTracklines.cpg		5 Bytes
2017-001-FA_ROVUSBLTracklines.dbf		1.05 KB
2017-001-FA_ROVUSBLTracklines.prj		145 Bytes
2017-001-FA_ROVUSBLTracklines.sbn		180 Bytes
2017-001-FA_ROVUSBLTracklines.sbx		124 Bytes
2017-001-FA_ROVUSBLTracklines.shp “Shapefile containing ROV USBL navigation tracklines”		1.25 MB
2017-001-FA_ROVUSBLTracklines.shx		132 Bytes

Related External Resources

Type: Related Primary Publication

Demopoulos, A., McClain-Counts, J., Bourque, J., Prouty, N., Smith, B., Brooke, S.D., Ross, S., and Ruppel, C., 2019, Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models: Deep Sea Research Part I, 148, 53-66.	https://doi.org/10.1016/j.dsr.2019.04.002
Ruppel, C., Demopoulos, A., and Prouty, N., 2018, Exploring US Mid-Atlantic Margin Methane Seeps: IMMeRSS, May 2017: Supplement to Oceanography, 31(1), p. 93.	https://doi.org/10.5670/oceanog.2018.supplement.01

Purpose

This dataset contains point and trackline navigation data for four ROV Global Explorer dives tracked using an Applied Acoustics EasyTrack Nexus 2 ultra-short baseline system during USGS field activity 2017-001-FA along the U.S. Atlantic continental shelf break and upper continental slope between Baltimore and Keller Canyons. This information allows for spatial correlation of the video, photography, bathymetry, and geologic samples collected by the ROV during the dives with other geophysical data for investigating sea-floor ecology, chemistry, morphology, and stratigraphy in the area.

Ultra-short baseline - navigation points and tracklines for Applied Acoustics EasyTrack Nexus 2 USBL data collected for ROV Global Explorer during USGS field activity 2017-001-FA

Dates

Citation

Summary

Summary

Contacts

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Purpose

Preview Image

Map

Spatial Services

Communities

Tags

Provenance

Additional Information

Shapefile Extension

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Dates

Citation

Summary

Summary

Contacts

Attached Files sorting Metadata First Recent First Alphabetical

Related External Resources

Purpose

Preview Image

Map

Spatial Services

Communities

Tags

Provenance

Additional Information

Shapefile Extension

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Attached Files

sorting

Metadata First

Recent First

Alphabetical