Bussmann, Ingeborg; Kasten, Sabine (2025): Atmospheric methane concentrations on RV POLARSTERN cruise PS133/2, in 2022, from Punta Arenas to Cape Town [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.983729
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-07-16 • DOI registered: 2025-08-14
Abstract:
Ambient methane concentrations were measured continuously by a LosGatos® greenhouse gas analyser (GGA) at a temporal resolution of 1 min. The GGA was calibrated regularly on board with gas sampling bags of standard gas and pure nitrogen (Airliquide). The inlet of the air was situated at the "crow's nest" with an additional water trap. Wind data were obtained from the dship-system. The data set was filtered according to Thornton et al. 2016: Wind speed and direction were used to filter the data to avoid air contaminated by the ship. We include only data collected when the relative wind speed was >2 m s−1, and the relative wind direction was >280° and <80° relative to the ship's bow. Any remaining observations with CO2 concentrations above 450 ppm were also removed.
Related to:
Kasten, Sabine (2023): The Expedition PS133/2 of the Research Vessel POLARSTERN to the Scotia Sea in 2022. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 775, 183 pp, https://doi.org/10.57738/BzPM_0775_2023
References:
Thornton, Brett F; Geibel, Marc C; Crill, Patrick M; Humborg, Christoph; Mörth, Carl-Magnus (2016): Methane fluxes from the sea to the atmosphere across the Siberian shelf seas. Geophysical Research Letters, 43, 5869-5877, https://doi.org/10.1002/2016GL068977
Coverage:
Median Latitude: -51.193099 * Median Longitude: -29.013141 * South-bound Latitude: -55.062200 * West-bound Longitude: -62.126200 * North-bound Latitude: -36.205400 * East-bound Longitude: 13.293900
Date/Time Start: 2022-11-22T00:13:00 * Date/Time End: 2022-12-18T06:50:00
Minimum ALTITUDE: 29 m * Maximum ALTITUDE: 29 m
Event(s):
PS133/2_0_Underway-28 * Latitude Start: -53.125346 * Longitude Start: -70.858473 * Latitude End: -52.269045 * Longitude End: -25.033601 * Date/Time Start: 2022-11-19T06:00:00 * Date/Time End: 2022-12-10T16:39:55 * Elevation: -21.4 m * O2A Registry URI: https://registry.o2a-data.de/items/22 * Location: South Atlantic Ocean * Campaign: PS133/2 (Island Impact) * Basis: Polarstern * Method/Device: Ship Weather Station (SWEAS)
PS133/2_0_Underway-29 * Latitude Start: -53.121300 * Longitude Start: -62.126200 * Latitude End: -36.205400 * Longitude End: 13.293900 * Date/Time Start: 2022-11-22T00:13:00 * Date/Time End: 2022-12-18T06:50:00 * O2A Registry URI: https://registry.o2a-data.de/items/4044 * Campaign: PS133/2 (Island Impact) * Basis: Polarstern * Method/Device: Greenhouse Gas Analyzer (GGA), Los Gatos Research Inc. * Comment: event was not logged in DSHIP
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Bussmann, Ingeborg | Geocode | ||
| 2 | LATITUDE | Latitude | Bussmann, Ingeborg | Geocode | ||
| 3 | LONGITUDE | Longitude | Bussmann, Ingeborg | Geocode | ||
| 4 | ALTITUDE | Altitude | m | Bussmann, Ingeborg | Geocode | |
| 5 | Methane, dry air | CH4 air | ppmv | Bussmann, Ingeborg | Greenhouse Gas Analyzer (GGA), Los Gatos Research Inc. | |
| 6 | Carbon dioxide, dry air | CO2 air | ppmv | Bussmann, Ingeborg | Greenhouse Gas Analyzer (GGA), Los Gatos Research Inc. | |
| 7 | Pressure, atmospheric | PPPP | hPa | Bussmann, Ingeborg | Ship Weather Station (SWEAS) | |
| 8 | Temperature, air | TTT | °C | Bussmann, Ingeborg | Ship Weather Station (SWEAS) | |
| 9 | Wind direction, true | WindDirTru | deg | Bussmann, Ingeborg | Ship Weather Station (SWEAS) | |
| 10 | Wind speed, true | WindSpTru | m/s | Bussmann, Ingeborg | Ship Weather Station (SWEAS) | |
| 11 | Wind direction, relative | RelWindDir | deg | Bussmann, Ingeborg | Ship Weather Station (SWEAS) | |
| 12 | Wind speed, relative | RelWindSp | m/s | Bussmann, Ingeborg | Ship Weather Station (SWEAS) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
297381 data points
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