How accurate were the measured trend of precipitation in Ny-Ålesund (Svalbard) in the last 40 years? ...

<!--!introduction!--> The Svalbard archipelago, in the Atlantic-Arctic region, was affected by a strong warming in the last decades. As a consequence, major rainfall events occurred in the last years, even during the boreal winter, with major impacts for the Arctic ecosystem. Ny-Ålesund, in th...

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Bibliographic Details
Main Authors: Champagne, Olivier, Zolina, Olga, Jacobi, Hans-Werner
Format: Conference Object
Language:unknown
Published: GFZ German Research Centre for Geosciences 2023
Subjects:
Online Access:https://dx.doi.org/10.57757/iugg23-1569
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018037
Description
Summary:<!--!introduction!--> The Svalbard archipelago, in the Atlantic-Arctic region, was affected by a strong warming in the last decades. As a consequence, major rainfall events occurred in the last years, even during the boreal winter, with major impacts for the Arctic ecosystem. Ny-Ålesund, in the northwest part of Svalbard, is known as the northernmost town of the world and hosts major research works for Svalbard and the Arctic. In this context, the long meteorological records (1975-) from Ny-Ålesund are widely used by many research. However, the amount of precipitation recorded by this station is subjected to large biases, mainly due to a snow undercatch during windy conditions. The purpose of this study is to investigate if the measured trend of precipitation observed in Ny-Ålesund in the 1975-2022 period was real, or if it can be due to a rain gauge undercatch. In this work, we selected several correction factors developed in the last decades, based on local wind and temperature. We applied these ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...