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Bathymetric data were collected during a total of 19 AUV Sentry dives conducted from R/V Atlantis and R/V Roger Revelle during 2018 Atlantis cruise AT42-06 (two dives); 2019 Atlantis cruise AT42-21 (ten dives); and, 2021 Revelle cruise RR2102 (seven dives). Track lines were spaced 170 m apart, with Sentry about 65 m above bottom, collecting multibeam data using a 400 kHz Reson 7125 system in 2018, and a 400 kHz Kongsberg EM2040 system in 2019 and 2021. Sentry navigation was obtained using a 300 kHz Teledyne Doppler velocity log (DVL) and a Sonardyne AvTrak2 ultra-short baseline (USBL) acoustic positioning system, combined with an iXblue Phins inertial navigation system (INS), and a Paroscientific 8B7000-I Digiquartz depth sensor. Sonar data from all 19 dives were processed together using the open-source MB-System software, and were gridded at 1 m × 1 m node resolution using a beam footprint calculated with the angular beam widths and weighted by local slope. The grid file is in GMT-compatible netCDF format, in un-projected geographic coordinates. Funding was provided by National Science Foundation awards OCE-1834797, OCE1949485, OCE-1948936, and OCE-1949938.
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Interpreted outlines of lava flows, faults, and eruptive fissures as shapefiles for the 9°50'N segment of the East Pacific Rise
This data set presents geological interpretation of lava flows generated during the 2005-2006 eruption, faults, and eruptive fissures for the 9°50'N segment of the East Pacific Rise. Interpretation was obtained based upon the compilation of multibeam bathymetric and sidescan sonar imagery data collected by AUV Sentry in 2018, 2019 and 2021. The data files are in shapefile format, in UTM Zone 9N projection. Funding was provided by National Science Foundation awards OCE-1834797, OCE-1949485, OCE-1948936, and OCE-1949938.
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- Award ID(s):
- 1948936
- PAR ID:
- 10315612
- Publisher / Repository:
- Interdisciplinary Earth Data Alliance (IEDA)
- Date Published:
- Edition / Version:
- 1
- Subject(s) / Keyword(s):
- Interpretation:Geologic:Fault/Fissure Interpretation:Geologic:LavaFlow
- Format(s):
- Medium: X Other: application/vnd.esri-shapefile
- Sponsoring Org:
- National Science Foundation
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