ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM114/2
Fuente:
PANGAEA
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Sprache: | en |
| Veröffentlicht: |
PANGAEA
2023
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1867171884495273984 |
|---|---|
| author | Nitsche, Frank Kopte, Robert Lobo, Bertrand Nischik, Timo |
| author_facet | Nitsche, Frank Kopte, Robert Lobo, Bertrand Nischik, Timo |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Upper-ocean velocities along the cruise track of Maria S. Merian cruise MSM114/2 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 1.45 s. 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 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 (0.65° +/- 0.5292°) and scale factor (1.0091 +/- 0.0089) of the Ocean Surveyor signal. The verage 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) > 0.5. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_957639 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM114/2 Nitsche, Frank Kopte, Robert Lobo, Bertrand Nischik, Timo ARC; Current velocity, east-west; Current velocity, north-south; DAM_Underway; DAM Underway Research Data; DataHub; DataHub Earth and Environment of the Helmholtz Association; DATE/TIME; DEPTH, water; Echo intensity, relative; LATITUDE; LONGITUDE; Maria S. Merian; MSM114/2; MSM114/2_0_Underway-9; Pings, averaged to a double ensemble value; Quality flag, current velocity; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); Vessel mounted Acoustic Doppler Current Profiler [75 kHz]; VMADCP-75 Upper-ocean velocities along the cruise track of Maria S. Merian cruise MSM114/2 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 1.45 s. 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 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 (0.65° +/- 0.5292°) and scale factor (1.0091 +/- 0.0089) of the Ocean Surveyor signal. The verage 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) > 0.5. |
| title | ADCP current measurements (75 kHz) during RV MARIA S. MERIAN cruise MSM114/2 |
| topic | ARC; Current velocity, east-west; Current velocity, north-south; DAM_Underway; DAM Underway Research Data; DataHub; DataHub Earth and Environment of the Helmholtz Association; DATE/TIME; DEPTH, water; Echo intensity, relative; LATITUDE; LONGITUDE; Maria S. Merian; MSM114/2; MSM114/2_0_Underway-9; Pings, averaged to a double ensemble value; Quality flag, current velocity; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); Vessel mounted Acoustic Doppler Current Profiler [75 kHz]; VMADCP-75 |
| url | https://doi.org/10.1594/PANGAEA.957639 |