Current velocity profiles at OBSEA seabed observatory (30min averages)
Authors/Creators
-
1.
Universitat Politècnica de Catalunya
Description
Description
This dataset contains a long-term current velocity profile time series collected by the OBSEA seafloor observatory. Deployed 4 km offshore from Vilanova i la Geltrú, Spain (NW Mediterranean), OBSEA is a multiparametric platform that has been continuously acquiring multidisciplinary marine data since 2009. To ensure scientific reliability, this dataset has undergone automated Quality Control (QC) processing in accordance with the QARTOD guidelines.
The dataset aggregates observations from an Acoustic Wave and Current (AWAC) profiler deployed at the OBSEA observatory. The instrument operates at a 10-minute sampling interval, with data subsequently aggregated into 30-minute averages. To maintain high data integrity, only raw data points that successfully pass the QARTOD quality control tests are included in the final 30-minute averages.
General Information
- Platforms: OBSEA Expandable Seafloor Observatory
- Sensors: AWAC-AST 1 MHz
- Coordinates: latitude 41.18212 °N, longitude 1.75257 °E, depth 0.0 - 19.0 m
- Temporal Coverage: from 2010-04-08 to 2025-04-17
- Sampling Frequency: 30-minute averages
Files and Formats
The data is organized in yearly NetCDF files, compliant with the EMSO Metadata Specifications.
Variables and Units
| variable | description | units |
|---|---|---|
| CSPD | Horizontal velocity of the water column (currents) | meters per second |
| CDIR | direction towards the sea water is flowing (currents) | degrees north |
| UCUR | eastward velocity of water current in the water body | meters per second |
| VCUR | northward velocity of water current in the water body | meters per second |
| ZCUR | upward velocity of water current in the water body | meters per second |
| BEAM1 | Signal return amplitude from the water body by moored acoustic doppler current profiler (ADCP) beam 1 | counts |
| BEAM2 | Signal return amplitude from the water body by moored acoustic doppler current profiler (ADCP) beam 2 | counts |
| BEAM3 | ADCP beam 3 amplitude | counts |
| VHM0 | spectral significant wave height of waves by acoustic doppler wave array | meters |
| VAVH | Wave height mean of waves (highest one third) on the water body by acoustic doppler wave array | meters |
| VH110 | Wave height mean of waves (highest one tenth) on the water body by acoustic doppler wave array | meters |
| VZMX | wave height maximum of waves on the water body by acoustic doppler wave array | meters |
| VTM02 | period mean of waves on the water body by acoustic doppler wave array | seconds |
| VTPK | Period at spectral maximum of waves (peak period Tp) on the water body by acoustic doppler wave array | seconds |
| VTZA | Zero-crossing period of waves {Tz} on the water body by acoustic doppler wave array | seconds |
| VPED | Direction (from) at spectral maximum of waves on the water body by acoustic doppler wave array | degrees north |
| VSPS | Directional spreading of waves on the water body by acoustic doppler wave array | degrees north |
| VMDR | Direction (from) mean of waves (mean wave direction) on the water body by acoustic doppler wave array | degrees north |
| UNDX | Unidirectivity index of waves on the water body by acoustic doppler wave array | Dimensionless |
| ERRC | AWAC error code | Dimensionless |
| STAT | status code | Dimensionless |
| BATT | input voltage level | voltage |
| SVEL | speed of sound in sea water | meters per second |
| HEAD | heading of device | degrees north |
| PTCH | pitch of device | degrees north |
| ROLL | roll of device | degrees north |
| PRES | pressure that exists in the medium of sea water | Decibars |
| TEMP | in situ sea water temperature | degrees Celsius |
| AIN1 | analog input 1 | counts |
| AIN2 | analog input 2 | counts |
Files
Files
(56.3 MB)
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md5:1a133fda5f4fc452a938ca4eab69179b
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md5:62d0b112758bd9ef3b6c775a51fb0a9e
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md5:b21a50b14c44a4153f8cb3cc81c6a859
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md5:9bee9185713fc959bbe93e024dea883e
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md5:7d28bd41b0b237da96c75fac491e329e
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md5:f0b383512d4dfbc93e261e1f336f9396
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3.2 MB | Download |