The ISLAS2020 field campaign: Studying the near-surface exchange process of stable water isotopes during the arctic wintertime

Titelangaben

Seidl, Andrew W. ; Johannessen, Aina ; Dekhtyareva, Alena ; Huss, JannisM. ; Jonassen, Marius O. ; Schulz, Alexander ; Hermansen, Ove ; Thomas, Christoph K: ; Sodemann, Harald:
The ISLAS2020 field campaign: Studying the near-surface exchange process of stable water isotopes during the arctic wintertime.
2024
DOI der Verlagsversion: https://doi.org/10.5194/essd-2024-293

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Abstract

The ISLAS2020 field campaign during February and March 2020 set out to obtain a unique dataset describing the Arctic water cycle using stable water isotope (SWI) observations. Our observation strategy focused on measuring evaporation, deposition, and precipitation, all of which are commonly sub-grid scale processes in numerical weather and climate models. Uncertain parameterizations for these processes can lead to compensating errors, which can go unnoticed; however, evaporation and precipitation can also be investigated with SWIs, as they are an integrated tracer for processes that atmospheric moisture has undergone. The campaign can be divided into two efforts: the primary field experiment in Ny-Ålesund focused on evaporation and deposition, and the larger precipitation collection network around the Nordic Seas.