Kopte, Robert; Koschinsky, Andrea; Schmidt, Katja (2021): ADCP current measurements (75 kHz) during RV METEOR cruise M169 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.933273
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2021-07-01 • DOI registered: 2021-08-05
Abstract:
Upper-ocean velocities along the cruise track of Meteor cruise M169 were continuously collected by a vessel-mounted Teledyne RD Instruments 75 kHz Ocean Surveyor ADCP. The transducer was located at 5.0 m below the water line. The instrument was operated in broadband mode with 4 m bins and a blanking distance of 4.0 m, while 50 bins were recorded using a pulse of 0.80 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. The ADCP was set to record bottom-track velocities in addition to water velocities. For each single ping, the bottom-track velocity components were substracted from the velocity profile to obtain ocean currents. The average interval was set to 60 s.
Related to:
Koschinsky, Andrea; Schmidt, Katja; Paul, Sophie Anna Luise; Krämer, Dennis; Ullrich, Matthias (2021): Tracing origin and distribution of geogenic and anthropogenic dissolved and particulate critical high-technology metals in the southern North Sea, Cruise No. M169, 11.12.2020 - 29.12.2020, Emden (Germany) - Emden (Germany). METEOR-Berichte, Gutachterpanel Forschungsschiffe, M169, 58 pp, https://doi.org/10.48433/cr_m169
Other version:
nc file: ADCP current measurements (75 kHz) during RV METEOR cruise M169 [dataset]. met_169_vmadcp_75khz_01.nc
Data processing report:
Kopte, Robert (2021): ADCP current measurements (75 kHz) during RV METEOR cruise M169 - Data Processing Report. Institute of Geosciences, Kiel University, met_169_vmadcp_75khz_01_proc_report.pdf
Standard operating procedure:
Kopte, Robert; Betz, Maximilian; Anselm, Norbert (2022): SOP 75kHz ADCP aboard of RV Meteor ( vessel:meteor:adcp_75khz_2175g). Zenodo, https://doi.org/10.5281/zenodo.7525347
Project(s):
DAM Underway Research Data (DAM_Underway)
Coverage:
Median Latitude: 54.641315 * Median Longitude: 6.431366 * South-bound Latitude: 53.442300 * West-bound Longitude: 3.458100 * North-bound Latitude: 55.861000 * East-bound Longitude: 9.709900
Date/Time Start: 2020-12-11T16:16:00 * Date/Time End: 2020-12-28T21:50:00
Minimum DEPTH, water: 13 m * Maximum DEPTH, water: 49 m
Event(s):
M169_0_Underway-2 * Latitude Start: 53.442300 * Longitude Start: 6.909700 * Latitude End: 54.270900 * Longitude End: 6.463100 * Date/Time Start: 2020-12-11T16:16:00 * Date/Time End: 2020-12-28T21:50:00 * Location: North Sea * Campaign: M169 (GPF 20‐3_091) * Basis: Meteor (1986) * Method/Device: Acoustic Doppler Current Profiler (ADCP)
Comment:
Velocity quality flagging is based on following threshold criteria: abs(UC) or abs(VC) > 2.0 m/s, rms(UC_z) or rms(VC_z) > 0.3.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Kopte, Robert | Geocode | ||
| 2 | LATITUDE | Latitude | Kopte, Robert | Geocode | ||
| 3 | LONGITUDE | Longitude | Kopte, Robert | Geocode | ||
| 4 | DEPTH, water | Depth water | m | Kopte, Robert | Geocode | |
| 5 | Current velocity, east-west | Cur vel U | cm/s | Kopte, Robert | Vessel mounted Acoustic Doppler Current Profiler, RDI Ocean Surveyor, 75 kHz | |
| 6 | Current velocity, north-south | Cur vel V | cm/s | Kopte, Robert | Vessel mounted Acoustic Doppler Current Profiler, RDI Ocean Surveyor, 75 kHz | |
| 7 | Quality flag, current velocity | QF cur vel | Kopte, Robert | Calculated | UV QC flag meanings= 0:unknown, 1:good_data, 2:probably_good_data, 3:potentially_correctable_bad_data, 4:bad_data, 5:not_used, 6:not_used, 7:nominal_value, 8:interpolated_value, 9:missing_value | |
| 8 | Echo intensity, relative | Echo int rel | cts | Kopte, Robert | Vessel mounted Acoustic Doppler Current Profiler, RDI Ocean Surveyor, 75 kHz | |
| 9 | Pings, averaged to a double ensemble value | Pings per ens | # | Kopte, Robert | Vessel mounted Acoustic Doppler Current Profiler, RDI Ocean Surveyor, 75 kHz |
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:
328765 data points
Download Data
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