Physical Oceanography measured with CTD on Triaxus topAWI (towed ocean profiler of the AWI) during MERIAN cruise MSM93

DOI

The MacArtney Triaxus extended version is a remotely operated towed vehicle (ROTV). It is towed behind the ship between 2 and 10 knots and can undulate in a saw tooth pattern between a few meters below the surface and 350m depth. The umbilical provides power and a fiber optic link to sensors that are mounted on the Triaxus (see SensorWeb). The different data streams require separate processing. Here we report the data from the Seabird 911+ dual pumped CTD system mounted on the Triaxus. The provided data are 0.5 second or 0.5 meter averages. The operations included profiling mode and constant depth mode. Depth data comes from the CTD's pressure sensor. Position data (latitude, longitude) comes from the ship's GPS system and is corrected for the length of the umbilical behind the ship. Standard Seabird Data processing (SBE Data Processing) were applied. A front in the open ocean region in the vicinity of the ice edge in Fram Strait was searched for with a ~100km long constant depth Triaxus transect on July 8. When a front had been found, it was surveyed in 3D by parallel UCTD sections and drifters were deployed. The front was followed until July 16 with the repeat of parallel UCTD and Triaxus sections. In total 17 sections were occupied with the Triaxus.

Identifier
DOI https://doi.org/10.1594/PANGAEA.940010
Related Identifier https://doi.org/10.1594/PANGAEA.940002
Related Identifier https://doi.org/10.48433/cr_msm93
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.940010
Provenance
Creator Hofmann, Zerlina; von Appen, Wilken-Jon ORCID logo; Mathieu, Laura; Hagemann, Jonas ORCID logo; Engicht, Carina; Kuhlmey, David; Becker, Hauke
Publisher PANGAEA
Publication Year 2022
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 268020496 https://gepris.dfg.de/gepris/projekt/268020496 TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 9056033 data points
Discipline Earth System Research
Spatial Coverage (-19.163W, 70.340S, 5.753E, 79.551N); North Greenland Sea; Iceland Sea
Temporal Coverage Begin 2020-07-05T10:50:30Z
Temporal Coverage End 2020-07-25T08:11:51Z