Weiß, Tim; Schmidt, Mark (2025): Atmospheric methane and carbon dioxide concentrations measured during ALKOR cruise AL561 on 2021-08-04 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982679 (DOI registration in progress), In: Weiß, T; Schmidt, M (2025): Time series of atmospheric methane and carbon dioxide concentrations measured during ALKOR cruise AL561 in 2021 (Skagerrak) [dataset publication series]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982676 (DOI registration in progress)
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Published: 2025-05-27
Abstract:
Atmospheric gas concentrations of CH4 and CO2 were measured with Picarro G2301-f analyser during AL561 cruise onboard RV Alkor (02.-12.08.2021). The gas inlet was placed at the bow of RV Alkor, at 6 m above sea level, to identify natural and anthropogenic methane anomalies near the sea surface (Schmidt et al., 2021). Concentration data are correlated with GPS-position and weather data (DSHIP) using time stamps (UTC); calculated in 1-3s averages.
Project(s):
Coverage:
Median Latitude: 58.319092 * Median Longitude: 9.880150 * South-bound Latitude: 58.174725 * West-bound Longitude: 9.572264 * North-bound Latitude: 58.770155 * East-bound Longitude: 10.374828
Date/Time Start: 2021-08-04T00:00:00 * Date/Time End: 2021-08-04T23:59:57
Minimum ALTITUDE: 6 m * Maximum ALTITUDE: 6 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Weiß, Tim | Geocode | ||
| 2 | LATITUDE | Latitude | Weiß, Tim | Geocode | ||
| 3 | LONGITUDE | Longitude | Weiß, Tim | Geocode | ||
| 4 | Speed over ground | SOG | kn | Weiß, Tim | ||
| 5 | Course over ground | Course ov gr | deg | Weiß, Tim | ||
| 6 | Heading | Head | deg | Weiß, Tim | ||
| 7 | Pressure, atmospheric | PPPP | hPa | Weiß, Tim | ||
| 8 | Temperature, air | TTT | °C | Weiß, Tim | ||
| 9 | Humidity, relative | RH | % | Weiß, Tim | ||
| 10 | Temperature, water | Temp | °C | Weiß, Tim | ||
| 11 | Wind direction, relative | RelWindDir | deg | Weiß, Tim | ||
| 12 | Wind direction, true | WindDirTru | deg | Weiß, Tim | ||
| 13 | Wind speed, relative | RelWindSp | m/s | Weiß, Tim | ||
| 14 | Wind speed, true | WindSpTru | m/s | Weiß, Tim | ||
| 15 | Methane, dry air | CH4 air | ppmv | Weiß, Tim | ||
| 16 | Carbon dioxide, dry air | CO2 air | ppmv | Weiß, Tim | ||
| 17 | Water vapour content | WVC | ppmv | Weiß, Tim | ||
| 18 | ALTITUDE | Altitude | m | Weiß, Tim | Geocode |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2734956 data points
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