Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft
The wind field in Arctic fjords is strongly influenced by glaciers, local orography and the interaction between sea and land. Ny-Ålesund, an important location for atmospheric research in the Arctic, is located in Kongsfjorden, a fjord with a complex local wind field that influences measurements in...
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ftleibnizopen:oai:oai.leibnizopen.de:yNJDfYoBNQPDO7WIbWJW 2023-10-09T21:48:41+02:00 Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft Schön, Martin Suomi, Irene Altstädter, Barbara van Kesteren, Bram zum Berge, Kjell Platis, Andreas Wehner, Birgit Lampert, Astrid Bange, Jens 2022 application/pdf https://oa.tib.eu/renate/handle/123456789/11610 https://doi.org/10.34657/10643 eng eng London : Taylor & Francis CC BY-NC 4.0 Unported https://creativecommons.org/licenses/by-nc/4.0 Polar research : a Norwegian journal of Polar research 41 (2022) aircraft measurement Arctic fjord boundary layer Kongsfjorden Microscale meteorology wind measurement 550 570 article Text 2022 ftleibnizopen https://doi.org/10.34657/10643 2023-09-10T23:16:54Z The wind field in Arctic fjords is strongly influenced by glaciers, local orography and the interaction between sea and land. Ny-Ålesund, an important location for atmospheric research in the Arctic, is located in Kongsfjorden, a fjord with a complex local wind field that influences measurements in Ny-Ålesund. Using wind measurements from UAS (unmanned aircraft systems), ground measurements, radiosonde and reanalysis data, characteristic processes that determine the wind field around Ny-Ålesund are identified and analysed. UAS measurements and ground measurements show, as did previous studies, a south-east flow along Kongsfjorden, dominating the wind conditions in Ny-Ålesund. The wind measured by the UAS in a valley 1 km west of Ny-Ålesund differs from the wind measured at the ground in Ny-Ålesund. In this valley, we identify a small-scale catabatic flow from the south to south-west as the cause for this difference. Case studies show a backing (counterclockwise rotation with increasing altitude) of the wind direction close to the ground. A katabatic flow is measured near the ground, with a horizontal wind speed up to 5 m s-1. Both the larger-scale south-east flow along the fjord and the local katabatic flows lead to a highly variable wind field, so ground measurements and weather models alone give an incomplete picture. The comparison of UAS measurements, ground measurements and weather conditions analysis using a synoptic model is used to show that the effects measured in the case studies play a role in the Ny-Ålesund wind field in spring. publishedVersion Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Ny Ålesund Ny-Ålesund Polar Research Svalbard LeibnizOpen (The Leibniz Association) Arctic Svalbard Ny-Ålesund |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
aircraft measurement Arctic fjord boundary layer Kongsfjorden Microscale meteorology wind measurement 550 570 |
spellingShingle |
aircraft measurement Arctic fjord boundary layer Kongsfjorden Microscale meteorology wind measurement 550 570 Schön, Martin Suomi, Irene Altstädter, Barbara van Kesteren, Bram zum Berge, Kjell Platis, Andreas Wehner, Birgit Lampert, Astrid Bange, Jens Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
topic_facet |
aircraft measurement Arctic fjord boundary layer Kongsfjorden Microscale meteorology wind measurement 550 570 |
description |
The wind field in Arctic fjords is strongly influenced by glaciers, local orography and the interaction between sea and land. Ny-Ålesund, an important location for atmospheric research in the Arctic, is located in Kongsfjorden, a fjord with a complex local wind field that influences measurements in Ny-Ålesund. Using wind measurements from UAS (unmanned aircraft systems), ground measurements, radiosonde and reanalysis data, characteristic processes that determine the wind field around Ny-Ålesund are identified and analysed. UAS measurements and ground measurements show, as did previous studies, a south-east flow along Kongsfjorden, dominating the wind conditions in Ny-Ålesund. The wind measured by the UAS in a valley 1 km west of Ny-Ålesund differs from the wind measured at the ground in Ny-Ålesund. In this valley, we identify a small-scale catabatic flow from the south to south-west as the cause for this difference. Case studies show a backing (counterclockwise rotation with increasing altitude) of the wind direction close to the ground. A katabatic flow is measured near the ground, with a horizontal wind speed up to 5 m s-1. Both the larger-scale south-east flow along the fjord and the local katabatic flows lead to a highly variable wind field, so ground measurements and weather models alone give an incomplete picture. The comparison of UAS measurements, ground measurements and weather conditions analysis using a synoptic model is used to show that the effects measured in the case studies play a role in the Ny-Ålesund wind field in spring. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Schön, Martin Suomi, Irene Altstädter, Barbara van Kesteren, Bram zum Berge, Kjell Platis, Andreas Wehner, Birgit Lampert, Astrid Bange, Jens |
author_facet |
Schön, Martin Suomi, Irene Altstädter, Barbara van Kesteren, Bram zum Berge, Kjell Platis, Andreas Wehner, Birgit Lampert, Astrid Bange, Jens |
author_sort |
Schön, Martin |
title |
Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
title_short |
Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
title_full |
Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
title_fullStr |
Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
title_full_unstemmed |
Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft |
title_sort |
case studies of the wind field around ny-ålesund, svalbard, using unmanned aircraft |
publisher |
London : Taylor & Francis |
publishDate |
2022 |
url |
https://oa.tib.eu/renate/handle/123456789/11610 https://doi.org/10.34657/10643 |
geographic |
Arctic Svalbard Ny-Ålesund |
geographic_facet |
Arctic Svalbard Ny-Ålesund |
genre |
Arctic Kongsfjord* Kongsfjorden Ny Ålesund Ny-Ålesund Polar Research Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Ny Ålesund Ny-Ålesund Polar Research Svalbard |
op_source |
Polar research : a Norwegian journal of Polar research 41 (2022) |
op_rights |
CC BY-NC 4.0 Unported https://creativecommons.org/licenses/by-nc/4.0 |
op_doi |
https://doi.org/10.34657/10643 |
_version_ |
1779311774344937472 |