Multibeam bathymetry raw data (Kongsberg EM 122 transit dataset) of RV SONNE during cruise SO292/2, North Pacific Ocean ...

• Main Authors: Lütjens, Mona, DMello, Gavin, Felgendreher, Meret, Menapace, Walter
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Bathymetry and Backscatter; Event label; Binary Object; Binary Object Media Type; Binary Object File Size; Kongsberg datagram raw file name; File content; Data file recording duration; Data file recording distance; Ship speed; Number of pings; Start of data file recording, date/time; Start of data file recording, latitude; Start of data file recording, longitude; Start of data file, heading; Start of data file, depth; Stop of data file recording, date/time; Stop of data file recording, latitude; Stop of data file recording, longitude; Stop of data file, heading; Stop of data file, depth; DATE/TIME; LATITUDE; LONGITUDE; ELEVATION; Comment; Swath-mapping system Simrad EM122 Kongsberg Maritime AS; SO292/2; Sonne_2; Kongsberg; Pacific; Alaska; Aleutian Islands
• Online Access: https://dx.doi.org/10.1594/pangaea.955291; https://doi.pangaea.de/10.1594/PANGAEA.955291

The multibeam echo sounder (MBES) data was collected from the 10.07.2022 (09:24 UTC) when leaving the Northern Mariana EEZ to the 18.07.2022 (00:24 UTC) before entering the EEZ close to the Aleutian Islands, Alaska with the Kongsberg EM122 on RV SONNE in the North Pacific Ocean (SO292/2). The deep-water MBES EM122 operates with an acoustic frequency of 12 kHz and a beam opening angle of 0.5° x 1°. The raw and unprocessed bathymetric and backscatter data is stored in Kongsberg format (*.all), each containing up to 30 min of data. The therein included time, motion and position data (WGS84, geographic) was measured by the Kongsberg Seapath system on board. During the acquisition the echo sounder was monitored as well as settings and filter adjusted according to the environment. The transit speed was up to 13 knots. The swath opening angle was set between 60° and 65° resulting in a swath width of about 22 km in 5,000 m water depth. The Ping Mode was set to Auto, which enabled the system to use continuous wave ... : These data should not be used for navigational purposes. ...