AKA: none
Other ID: none
Status: Completed
Organization(s):
Funding Program(s):
Data Source Information: Three donated AUV cruises were conducted aboard the MBARI R/V Rachel Carson from 25-28 April 2018, 14-19 March 2019, and 10-11 May 2019. These surveys targeted channel, pockmark, and structural features in the CalDIG (California Deepwater Investigations and Groundtruthing) study region. A total of 20 AUV dives between the three cruises were conducted. The MBARI AUV carries a Reson 7125, a 400 kHz multibeam sonar system, and an Edgetech 1-6 kHz Chirp sub-bottom profile system (e.g., Caress et al., 2008). The 20 AUV surveys contain coincident ultrahigh-resolution multibeam bathymetry and low-altitude Chirp data. During multibeam acquisition, Chirp tracklines were conducted parallel to multibeam contours and tied together with widerspaced crossing lines. All data were processed by MBARI technicians. AUV bathymetric data were generally gridded to ~1 m cell size, and Chirp sub-bottom profile data were altitude corrected. AUV bathymetry and Chirp data will available for download via a USGS data release in spring of 2021.
Information Specialist(s): Maureen Walton
Data Type(s): Location-Elevation: Navigation, Seismics: Sub Bottom Profiler
Start Date: 2018-04-25
End Date: 2018-04-28
Equipment Used: Other, 0.5-16 kHz, 0.5-16 kHz receiver
Information to be Derived:
Summary of Activity and Data Gathered:
Notes: Location-Elevation USBL - Kearfott SeaDevil inertial navigation system (INS).
Cruise affiliated with: 2021-604-DD and 2021-605-DD.
Location:
Morro Bay, California
| Boundaries | |||
|---|---|---|---|
| North: 35.60371874 | South: 33.57801475 | West: -122.16796875 | East: -119.64111328 |
Platform(s):
Kennedy, D.J., Walton, M.A., Cochrane, G.R., Paull, C., Caress, D., Anderson, K., and Lundsten, E., 2021, Donated AUV bathymetry and Chirp seismic-reflection data collected during Monterey Bay Aquarium Research Institute cruises in 2018-2019 offshore of south-central California: U.S. Geological Survey data release, https://doi.org/10.5066/P97QM7NF.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| Other | --- | --- | --- |
| 0.5-16 kHz | --- | Sub Bottom Profiler | |
| 0.5-16 kHz receiver | --- | Sub Bottom Profiler | Donated AUV bathymetry data collected during Monterey Bay Aquarium Research Institute (MBARI) cruise in April 2018 offshore of south-central California (This dataset consists of autonomous underwater vehicle (AUV) bathymetry data collected in April 2018 aboard the R/V Rachel Carson, which is owned and operated by the Monterey Bay Aquarium Research Institute (MBARI). During the cruise, bathymetry data were collected across six AUV dives, all six of which collected coincident bathymetry and Chirp seismic-reflection data.) Donated AUV Chirp seismic-reflection data collected during Monterey Bay Aquarium Research Institute (MBARI) cruise in April 2018 offshore of south-central California (This dataset consists of autonomous underwater vehicle (AUV) Chirp seismic-reflection data collected in April 2018 aboard the R/V Rachel Carson, which is owned and operated by the Monterey Bay Aquarium Research Institute (MBARI). During the cruise, data were collected across eight AUV dives, six of which collected coincident bathymetry and Chirp seismic-reflection data (two dives collected Chirp seismic-reflection data only). The collection of these data was funded entirely by MBARI, and the data have been donated to the U.S. Geological Survey (USGS). The data were collected in collaboration with the USGS and the Bureau of Ocean Energy Management (BOEM) and they are located in the same study area as the collaborative California Deepwater Investigations and Groundtruthing I (Cal DIG I) project. The purpose of the overall Cal DIG I study is to assess shallow geohazards, benthic habitats, and thereby the potential for alternative energy infrastructure (namely floating wind turbines) offshore south-central California due to the study area's proximity to power grid infrastructure associated with the Morro Bay power plant. The AUV data in this portion of the data release provide ultra-high-resolution subsurface imaging of eight different patches of seafloor offshore of the south-central California coast. The AUV mapping navigation has not been accurately positioned and is considered as only partially processed.) |
