Data DOI: 10.26022/IEDA/331284
Citation:
Caress, David, et al., (2023), Near-bottom ROV LiDAR bathymetry image (GeoTIFF format) from the Octopus Garden hydrothermal spring site. Marine Geoscience Data System (MGDS). doi:10.26022/IEDA/331284
Title:
Near-bottom ROV LiDAR bathymetry image (GeoTIFF format) from the Octopus Garden hydrothermal spring site
Abstract:
Near-bottom high-resolution bathymetry data were collected with a 3D at Depth Wide Swath Subsea Lidar (WiSSL) laser scanner that is part of the MBARI Low Altitude Survey System (LASS) mounted for two dives in 2021 to the ROV Doc Ricketts, which was flown at 3 m altitude at speeds <= 1.0 m/s to produce bathymetry from the lidar, presented here at 2 cm resolution. Each sounding has a 532 nm laser footprint of 0.8 cm. The image file presented here is in GeoTIFF raster image format and the projection is UTM zone 10N. Position and attitude data were provided by a Kearfott SeaDevil Inertial Navigation System (INS) integrated with a 1200 kHz Teledyne RD Instruments Doppler velocity log (DVL) and a Paroscientific pressure sensor. The LASS sensor package was mounted in an articulating frame within an ROV tool sled that rotates from pointing the sensors vertically down to horizontally forward, allowing surveys of flat to vertical seafloor. The articulation is automated by closing a control loop around the difference between the forward and backward beams of the DVL. Funding was provided by a grant from the David and Lucile Packard Foundation to MBARI.
Creator(s):
Caress, David
Barry, James
Paduan, Jennifer
Date Available:
2023-03-07
Date Created:
2023-03-07
Data Type(s):
Bathymetry
Resource Type:
Image
File Format(s):
image/geotiff
Data Curated by:
Version:
1
Language:
en
License:
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0] URI: http://creativecommons.org/licenses/by-nc-sa/3.0/us/
Related Information
IsSupplementTo:
doi: 10.26022/IEDA/331282
IsSupplementTo:
doi: 10.26022/IEDA/331283