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Sound Velocity Profiles, Odim MVP 30 sound velocity profile data, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (PNG images, ASVP text, and Esri point shapefile, GCS WGS 84).

Dates

Publication Date
Start Date
2017-05-21
End Date
2017-05-26

Citation

Baldwin, W.E., Ackerman, S.D., Worley, C.R., Danforth, W.W., and Chaytor, J.D, 2018, High-resolution geophysical data collected along the Mississippi River Delta front offshore of southeastern Louisiana, U.S. Geological Survey Field Activity 2017-003-FA: U.S. Geological Survey data release, https://doi.org/10.5066/F7X929K6.

Summary

High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic gas in the shallow [...]

Contacts

Attached Files

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

2017-003-FA_MVP_ASVP.zip
“zip compressd archive of SVP profiles in ASVP text format”
146 KB
2017-003-FA_MVP_Image.zip
“zip compressd archive of SVP profile PNG images”
3.65 MB
Shapefile: 2017-003-FA_MVPdata.zip
2017-003-FA_MVPdata.cpg 5 Bytes
2017-003-FA_MVPdata.dbf 116.88 KB
2017-003-FA_MVPdata.prj 135 Bytes
2017-003-FA_MVPdata.sbn 868 Bytes
2017-003-FA_MVPdata.sbx 156 Bytes
2017-003-FA_MVPdata.shp
“Shapefile containing Odim MVP30 SVP navigation”
2.12 KB
2017-003-FA_MVPdata.shx 692 Bytes
2017-003-FA_MVPdata_browse.jpg
“Browse graphic of Odim MVP30 SVP navigation”
thumbnail 153.39 KB

Purpose

This dataset is used to display the locations of sound velocity profiles (SVP, also referred to as sound speed profiles), as well as the SVP data, collected during a 2017 USGS cruise along the Mississippi River Delta front. The sound velocity profiles document water column sound speed variability during the cruise, and were used during processing to account for refraction artifacts present within the multibeam bathymetric data. The dataset contains graphs of the sound velocity profile at each station location, as well as location in Geographic Coordinate System (GCS) WGS 84 latitude and longitude, the time of day, and date of collection.

Additional Information

Shapefile Extension

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dateUploadedMon Feb 26 13:57:36 MST 2018
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name2017-003-FA_MVPdata.shp
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dateUploadedFri Aug 07 14:15:29 MDT 2020
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