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von Appen, Wilken-Jon; Hofmann, Zerlina; Mathieu, Laura; Hagemann, Jonas; Engicht, Carina; Kuhlmey, David (2021): Raw data from UCTD (Underway CTD) during MERIAN cruise MSM93 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939733

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Abstract:
The Teledyne Underway CTD was operated in tow-yo mode: the winch brake is disengaged and the probe is in approximate free-fall at 4m/s to 1m/s vertical speed collecting data for a cast. Then the brake is engaged and the probe is hauled in until it is within 10m horizontal behind the vessel at the sea surface. The winch is then disengaged and the next cast starts. A straight section is collected with the same probe in the water. At the end of the section, the probe is recovered. The data is recorded internally on the probe and only read out once the probe is back on deck. 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. During one UCTD section, an operator error resulted in the fact that the probe appeared to have been started while in fact it had not been started before deployment. In total 21 sections were occupied excluding the section where no data was recorded (station MSM93_62-1).
Keyword(s):
Fram Strait; underway CTD
Related to:
Hofmann, Zerlina; von Appen, Wilken-Jon; Mathieu, Laura; Hagemann, Jonas; Engicht, Carina; Kuhlmey, David (2021): Physical Oceanography measured with UCTD (Underway CTD) during MERIAN cruise MSM93 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939712
Further details:
von Appen, Wilken-Jon (2021): Submesoscale Dynamics in Fram Strait, Cruise No. MSM93 (GPF 18-1_33), June 26 - July 30, 2020, Emden (Germany) - Emden (Germany). MARIA S. MERIAN-Berichte, Gutachterpanel Forschungsschiffe, MSM93, 53 pp, https://doi.org/10.48433/cr_msm93
Funding:
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 79.433400 * Median Longitude: 3.526650 * South-bound Latitude: 79.278000 * West-bound Longitude: 2.888000 * North-bound Latitude: 79.556000 * East-bound Longitude: 3.966000
Date/Time Start: 2020-07-10T00:29:14 * Date/Time End: 2020-07-14T04:02:01
Minimum Elevation: -3764.9 m * Maximum Elevation: -1554.5 m
Event(s):
MSM93_53-1 * Latitude Start: 79.433000 * Longitude Start: 3.826000 * Latitude End: 79.300000 * Longitude End: 3.154000 * Date/Time Start: 2020-07-10T00:29:14 * Date/Time End: 2020-07-10T02:18:34 * Elevation Start: -3693.1 m * Elevation End: -2501.4 m * Location: North Greenland Sea * Campaign: MSM93 (GPF 18-1_33) * Basis: Maria S. Merian * Method/Device: CTD, underway (CTD-UW) * Comment: Profil 1
MSM93_54-1 * Latitude Start: 79.317000 * Longitude Start: 3.113000 * Latitude End: 79.448000 * Longitude End: 3.774000 * Date/Time Start: 2020-07-10T02:30:49 * Date/Time End: 2020-07-10T04:18:29 * Elevation Start: -2030.8 m * Elevation End: -3415.6 m * Location: North Greenland Sea * Campaign: MSM93 (GPF 18-1_33) * Basis: Maria S. Merian * Method/Device: CTD, underway (CTD-UW) * Comment: Profil 2
MSM93_55-1 * Latitude Start: 79.457000 * Longitude Start: 3.687000 * Latitude End: 79.321000 * Longitude End: 2.996000 * Date/Time Start: 2020-07-10T04:32:15 * Date/Time End: 2020-07-10T06:24:33 * Elevation Start: -3033.6 m * Elevation End: -2210.3 m * Location: North Greenland Sea * Campaign: MSM93 (GPF 18-1_33) * Basis: Maria S. Merian * Method/Device: CTD, underway (CTD-UW) * Comment: Profil 3
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 1 (ProcLevel1)
Size:
14.3 MBytes

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