Projet description
The ARCA project aims to describe atmospheric rivers in the polar regions by applying recent algorithms for detecting these events to simulations of past, present and future climates. ARCA will assess the impact of atmospheric rivers on Antarctic surface mass balance. ARCA will also explore the extent to which past atmospheric river activity can be recovered from ice core records. To do this, ARCA will collect meteorological, isotopic, and aerosol data in (atmospheric) (…)

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https://arca.osug.fr/Record-de-chaleur

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Publications
Collected Data

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Project description
Atmospheric rivers are filamentary atmospheric flows, carrying intense amounts of water vapor, generally associated with a low-level jet ahead of the cold front of an extratropical low, associated with the ascent of large masses of warm, moist air to the upper troposphere as they move poleward.

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Atmospheric rivers are described in the American Meteorological Society’s Glossary of Meteorology as filamentary atmospheric flows carrying intense amounts of water vapor, usually associated with a low-level jet ahead of the cold front of an extratropical low. These flows are also associated with the ascent of large masses of warm, moist air from the lower layers of the warm sector of the low, rising rapidly to the upper troposphere as they move poleward. These events are infrequent and (…)

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