Multibeam bathymetry processed data (EM 120 echosounder & Kongsberg EM 122 dataset compilation) of RV MARIA S. MERIAN during cruise MSM11/2, MSM82/2 & MSM87, North Atlantic Ocean ...

• Main Authors: Tang, Qinqin, Krastel, Sebastian
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Multibeam; Binary Object; Binary Object Media Type; Binary Object File Size; Raster cell size; File content; Vertical datum; Horizontal datum; Longitude, westbound; Longitude, eastbound; Latitude, southbound; Latitude, northbound; Number of depth soundings; Area; Elevation, minimum; Elevation, maximum; EM122 multibeam echosounder; MSM82/2; MSM87; Maria S. Merian; Kongsberg; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.943632; https://doi.pangaea.de/10.1594/PANGAEA.943632

The bulk of multibeam bathymetric data were acquired during RV Maria S. Merian cruises MSM11/2 (Bickert et al., 2009), MSM82/2 (Krastel et al., 2019a) and MSM87 (Krastel et al., 2019b) with hull-mounted Kongsberg Simrad systems EM120 (MSM11/2) and EM122 (MSM82/2 and MSM87). The nominal sonar frequency is 12 kHz. The angular coverage is up to 150°, and each angular beam accuracy was 2° by 2°. Kongsberg Seapath system provides the combined motion, position and time data, which are transmitted to the Processing Unit (PU) of the multibeam echosounder to achieve real-time motion compensation in pitch, roll and yaw. All raw data were processed with MB-System software (Caress and Chayes, 2017: https://www.mbari.org/products/research-software/mb-system/). Sound velocities were measured with a Conductivity, Temperature, Depth (CTD) probe during MSM 82/2 and an expendable sound velocimeter during MSM87. The multibeam data in cruise MSM82/2 were collected from the 11th to 13th of May in 2019 in the headwall area of the ...