Data DOI: 10.26022/IEDA/331484
Citation:
Tagliaro, Gabriel, et al., (2024), Sub-bottom profiler data from the CORE-VTRCC cruise (2021). Marine Geoscience Data System (MGDS). doi:10.26022/IEDA/331484
Title:
Sub-bottom profiler data from the CORE-VTRCC cruise (2021)
Abstract:
This data set consists of sub-bottom profiler data collected in 2021 over the Vitoria Trindade Ridge and Columbia Channel during research cruise CORE-VTRCC on naval vessel Nho Cruzeiro do Sul. The high-resolution sub-bottom data was acquired with a hull-mounted Kongsberg SBP-120 CHIRP system. Survey geometry came from a SeaPath 330 positioning system with two GNSS antennas without differential positioning. Acquisition occurred in the Kongsberg SIS software with the ellipsoid WGS-84 and a UTM projection and zone 23S. The equipment was operated with one main channel, in a frequency of 2.5-6.5 kHz, with chirp up linear pulse, which results in a maximum vertical resolution ~0.3 ms. The data was logged in Topas raw format and converted to SEG-Y format. The power of the SBP pulse and trigger interval varied along the survey depending on ocean conditions and seafloor depth. Seismic data was then converted from time to depth assuming a sound speed of 1500 m/s. Ship survey speeds ranged from 4-7 knots. The files are in SEG-Y format. Funding for this work was provided through FAPESP awards 2016/24946-9 and 2020/08847-6, and through the Brazilian Navy program PROAMAZONIA AZUL.
Creator(s):
Tagliaro, Gabriel
Gama, Mateus
Britzke, Adolfo
Louro, Vinicius
Bauli, Pedro
Patines, Gabriela
Bonifatto, Gabrielle
Vieira, Ana
Silva, Beatriz
Boni, Geandré
Silva, Luan
Sergipe, Paula
Silva, Raylla
Dos Santos, Sarah
Caram, Tainá
Pereira, Tayná
Jovane, Luigi
Date Available:
2024-01-23
Date Created:
2024-01-05
Data Type(s):
Seismic:Active:Subbottom
Resource Type:
Dataset
File Format(s):
application/seismic-segy
Data Curated by:
Version:
1
Language:
en
License:
Creative Commons Attribution 4.0 International Public License [CC BY 4.0] URI: https://creativecommons.org/licenses/by/4.0/