Atmospheric methane concentrations on RV POLARSTERN cruise PS133/2, in 2022, from Punta Arenas to Cape Town
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| Auteurs principaux: | , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2025
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| _version_ | 1867170136300978176 |
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| author | Bussmann, Ingeborg Kasten, Sabine |
| author_facet | Bussmann, Ingeborg Kasten, Sabine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_983729 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Atmospheric methane concentrations on RV POLARSTERN cruise PS133/2, in 2022, from Punta Arenas to Cape Town Bussmann, Ingeborg Kasten, Sabine ALTITUDE; Atmospheric CH4; Carbon dioxide, dry air; DATE/TIME; Greenhouse Gas Analyzer (GGA), Los Gatos Research Inc.; Island Impact; LATITUDE; LONGITUDE; Methane, dry air; Polarstern; Pressure, atmospheric; PS133/2; PS133/2_0_Underway-28; PS133/2_0_Underway-29; Ship Weather Station; South Atlantic Ocean; SWEAS; Temperature, air; Wind direction, relative; Wind direction, true; Wind speed, relative; Wind speed, true 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. |
| title | Atmospheric methane concentrations on RV POLARSTERN cruise PS133/2, in 2022, from Punta Arenas to Cape Town |
| topic | ALTITUDE; Atmospheric CH4; Carbon dioxide, dry air; DATE/TIME; Greenhouse Gas Analyzer (GGA), Los Gatos Research Inc.; Island Impact; LATITUDE; LONGITUDE; Methane, dry air; Polarstern; Pressure, atmospheric; PS133/2; PS133/2_0_Underway-28; PS133/2_0_Underway-29; Ship Weather Station; South Atlantic Ocean; SWEAS; Temperature, air; Wind direction, relative; Wind direction, true; Wind speed, relative; Wind speed, true |
| url | https://doi.org/10.1594/PANGAEA.983729 |