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Autonomous measurements of atmospheric condensed water over East Antarctica in the framework of the AWACA Project

Urheber*innen

Wiener,  Valentin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Berne,  Alexis
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Dubos,  Thomas
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Fourré,  Élise
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Genthon,  Christophe
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Lauwers,  Thomas
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Le Gac,  Christophe
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Mariage,  Vincent
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Masson-Delmotte,  Valérie
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Monnet,  Michael
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Toledo,  Felipe
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Wiener, V., Berne, A., Dubos, T., Fourré, É., Genthon, C., Lauwers, T., Le Gac, C., Mariage, V., Masson-Delmotte, V., Monnet, M., Toledo, F. (2023): Autonomous measurements of atmospheric condensed water over East Antarctica in the framework of the AWACA Project, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-3541


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020592
Zusammenfassung
In this era of global warming, the climate of the Antarctic continent is extensively studied with climate models, as even a small loss of its polar cap may have a big impact on global sea level rise. However, the meteorological observations needed to evaluate and calibrate models remain scarce, especially in the atmospheric column, in the winter season and away from any inhabited station.For this purpose, the AWACA (Atmospheric WAter Cycle over Antarctica) project aims to deploy 3 autonomous OPUs (automated Observation Platform Units) sheltering radars and lidars working at various wavelengths along a transect from coastal Terre Adélie to Concordia station, 1100km from the coast to 3200m on the Plateau. These instruments will perform condensed water measurements throughout the lower tropospheric column to characterize clouds and precipitation. Water vapor and snowflakes isotopes measurements will also be made by a spectrometer. The OPUs will operate during 3 years, being visited only once a year. They will be isolated from any station and therefore self-powered.A description of the OPUs’ design, and the challenges associated with their stand-alone deployment in a harsh and remote environment and the various measurements they will perform will be presented.