Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Brix, Saskia; Kopte, Robert; Taylor, James (2023): ADCP current measurements (75 kHz) during RV SONNE cruise SO286 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.956601

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2023-03-16 • DOI registered: 2023-04-14

RIS CitationBibTeX Citation Copy Citation ShareShow MapGoogle Earth 25 4 1

Abstract:
Upper-ocean velocities along the cruise track of Sonne cruise SO286 were continuously collected by a vessel-mounted Teledyne RD Instruments 75 kHz Ocean Surveyor ADCP.
The transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode with 8 m bins and a blanking distance of 8.0 m, while 100 bins were recorded using a pulse of 1.41 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 (-0.16° +/- 0.5311°) and scale factor (0.9985 +/- 0.0084) of the Ocean Surveyor signal. The average interval was set to 60 s.
Velocity quality flagging is based on following threshold criteria: abs(UC) or abs(VC) > 1.5 m/s, rms(UC_z) or rms(VC_z) > 0.3.
Related to:
Brix, Saskia; Taylor, James; Kieneke, Alexander; Linse, Katrin; Martínez Arbizu, Pedro; Shipboard Scientific Party (2022): Icelandic marine Animals: Genetics and Ecology meets Diversity along latitudinal gradients in the deep sea of the Atlantic Ocean 2, Cruise No. SO286, 04.11.2021 - 09.12.2021, Emden (Germany) - Las Palmas (Spain). SONNE-Berichte, Begutachtungspanel Forschungsschiffe, SO286, 42 pp, https://doi.org/10.48433/cr_so286
Other version:
nc file: ADCP current measurements (75 kHz) during RV SONNE cruise SO286 (2023). so_286_vmadcp_75khz_01.nc
Data processing report:
Kopte, Robert (2023): Upper-ocean acoustic Doppler current profiler (75kHz-ADCP) underway measurements during MARIA S. MERIAN cruise SO286. Institute of Geosciences, Kiel University, so_286_vmadcp_75khz_01_proc_report.pdf
Standard operating procedure:
Kopte, Robert; Betz, Maximilian; Anselm, Norbert (2022): SOP 75kHz ADCP aboard of RV Sonne (vessel:sonne:adcp_75khz_647271). Zenodo, https://doi.org/10.5281/zenodo.7525393
Project(s):
DAM Underway Research Data (DAM_Underway)
Coverage:
Median Latitude: 46.835987 * Median Longitude: -40.596660 * South-bound Latitude: 31.704800 * West-bound Longitude: -54.528900 * North-bound Latitude: 58.472100 * East-bound Longitude: -22.803700
Date/Time Start: 2021-11-18T18:53:00 * Date/Time End: 2021-12-06T22:01:00
Minimum DEPTH, water: 22.0 m * Maximum DEPTH, water: 814.0 m
Event(s):
SO286_0_Underway-4 * Latitude Start: 58.472100 * Longitude Start: -53.418500 * Latitude End: 31.704800 * Longitude End: -22.803700 * Date/Time Start: 2021-11-18T18:53:00 * Date/Time End: 2021-12-06T22:01:00 * O2A Registry URI: https://hdl.handle.net/10013/sensor.8d073178-2ec8-4cbd-9548-e0cb29439d27 * Campaign: SO286 * Basis: Sonne_2 * Method/Device: Vessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75) * Comment: event was not logged in DSHIP
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeKopte, RobertGeocode
2LATITUDELatitudeKopte, RobertGeocode
3LONGITUDELongitudeKopte, RobertGeocode
4DEPTH, waterDepth watermKopte, RobertGeocode
5Current velocity, east-westCur vel Ucm/sKopte, RobertVessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75)
6Current velocity, north-southCur vel Vcm/sKopte, RobertVessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75)
7Quality flag, current velocityQF cur velKopte, RobertSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)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
8Echo intensity, relativeEcho int relctsKopte, RobertVessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75)
9Pings, averaged to a double ensemble valuePings per ens#Kopte, RobertVessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75)
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:
12950510 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)