Hölz, Sebastian; Kopte, Robert; Klein, Johanna (2022): ADCP current measurements (38 kHz) during RV MARIA S. MERIAN cruise MSM103 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945365
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2022-06-14 • DOI registered: 2022-07-19
Abstract:
Upper-ocean velocities along the cruise track of RV MARIA S. MERIAN cruise MSM103 were continuously collected by a vessel-mounted Teledyne RD Instruments 38 kHz Ocean Surveyor ADCP. The transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode with 32 m bins and a blanking distance of 16.0 m, while 50 bins were recorded using a pulse of 2.87 s. The ship's velocity was calculated from position fixes obtained by the Global Positioning System (GPS). Heading, pitch and roll data from the ship's gyro platforms and the navigation data were used by the data acquisition software VmDas internally to convert ADCP velocities into earth coordinates. Accuracy of the ADCP velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data post-processing included water track calibration of the misalignment angle (0.50° +/- 0.7353°) and scale factor (1.0006 +/- 0.0160) of the Ocean Surveyor signal. The average interval was set to 120 s.
Other version:
nc file: ADCP current measurements (38 kHz) during RV MARIA S. MERIAN cruise MSM103 (2022). msm_103_vmadcp_38khz_01.nc
Data processing report:
Kopte, Robert (2022): Upper-ocean acoustic Doppler current profiler (38kHz-ADCP) underway measurements during Maria S. Merian cruise MSM_103 - Data Processing Report. Institute of Geosciences, Kiel University, msm_103_vmadcp_38khz_01_proc_report.pdf
Standard operating procedure:
Kopte, Robert; Betz, Maximilian; Anselm, Norbert (2022): SOP 38kHz ADCP aboard of RV Maria S Merian (vessel:maria_s_merian:adcp_38khz_1207). Zenodo, https://doi.org/10.5281/zenodo.6821542
Project(s):
DAM Underway Research Data (DAM_Underway)
Coverage:
Median Latitude: 46.957588 * Median Longitude: -29.264338 * South-bound Latitude: 45.465600 * West-bound Longitude: -56.148100 * North-bound Latitude: 48.714700 * East-bound Longitude: -11.740800
Date/Time Start: 2021-09-15T10:30:00 * Date/Time End: 2021-11-11T13:38:00
Minimum DEPTH, water: 54 m * Maximum DEPTH, water: 1622 m
Event(s):
MSM103_0_Underway-26 (MSM101_0_Underway-4) * Latitude Start: 48.714700 * Longitude Start: -14.482500 * Latitude End: 48.344200 * Longitude End: -11.740800 * Date/Time Start: 2021-09-15T10:30:00 * Date/Time End: 2021-11-11T13:38:00 * O2A Registry URI: https://hdl.handle.net/10013/sensor.aef4e051-46f9-4999-921c-8c7914866078 * Campaign: MSM103 (GPF 20-1-39, PRINCE) * Basis: Maria S. Merian * Method/Device: Vessel mounted Acoustic Doppler Current Profiler [38 kHz] (VMADCP-38) * Comment: Original event (see OptionalLabelEvent) adapted with start/end taken from data file; altered method; added sensor uri
Comment:
Velocity quality flagging is based on following threshold criteria: abs(UC) or abs(VC) > 1.0 m/s, rms(UC_z) or rms(VC_z) > 0.3.
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
1527690 data points
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