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

Kopte, Robert; Urlaub, Morelia (2024): Shipboard ADCP current measurements (75 kHz) during RV SONNE cruise SO299/2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964693

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

Published: 2024-01-10 • DOI registered: 2024-02-08

RIS CitationBibTeX Citation Copy Citation ShareShow MapGoogle Earth 8 2

Abstract:
Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO299/2 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 8.00 m, and a total of 100 bins, covering the depth range between 22.0 m and 814.0 m.
Heading, pitch and roll data from the ship's motion reference unit and the navigation data from the Global Positioning systems were used by the data acquisition software VmDAS internally to convert ADCP velocities into earth coordinates. The ship's velocity was calculated from position fixes obtained by the Global Positioning System (GPS). 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 (0.0830° +/- 0.4577°) and scale factor (0.9966 +/- 0.0102) of the Ocean Surveyor signal. The velocity data were averaged in time using an average interval of 120 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:
Kopte, Robert; Urlaub, Morelia (2024): Shipboard ADCP current measurements (38 kHz) during RV SONNE cruise SO299/2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964692
Other version:
nc file: ADCP current measurements (75 kHz) during RV SONNE cruise SO299_2 (2024). so_299_2_vmadcp_75khz.nc
Data processing report:
Kopte, Robert (2024): Upper-ocean acoustic Doppler current profiler (75kHz-ADCP) underway measurements during SONNE cruise SO299_2. Institute of Geosciences, Kiel University, so_299_2_vmadcp_75khz_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: -12.762749 * Median Longitude: 82.618713 * South-bound Latitude: -17.038600 * West-bound Longitude: 67.472000 * North-bound Latitude: -7.795000 * East-bound Longitude: 99.994200
Date/Time Start: 2023-08-23T21:38:00 * Date/Time End: 2023-08-30T14:58:00
Minimum DEPTH, water: 22.0 m * Maximum DEPTH, water: 814.0 m
Event(s):
SO299/2_0_Underway-7 * Latitude Start: -7.795000 * Longitude Start: 99.994200 * Latitude End: -17.038600 * Longitude End: 67.472000 * Date/Time Start: 2023-08-23T21:38:00 * Date/Time End: 2023-08-30T14:58:00 * O2A Registry URI: hdl:10013/sensor.8d073178-2ec8-4cbd-9548-e0cb29439d27 * Campaign: SO299/2 (REE‐T, BIO-OPS_2023) * Basis: Sonne_2 * Method/Device: Vessel mounted Acoustic Doppler Current Profiler [75 kHz] (VMADCP-75)
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:
2143110 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)