Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft
dc.bibliographicCitation.firstPage | 7884 | |
dc.bibliographicCitation.journalTitle | Polar research : a Norwegian journal of Polar research | eng |
dc.bibliographicCitation.volume | 41 | |
dc.contributor.author | Schön, Martin | |
dc.contributor.author | Suomi, Irene | |
dc.contributor.author | Altstädter, Barbara | |
dc.contributor.author | van Kesteren, Bram | |
dc.contributor.author | zum Berge, Kjell | |
dc.contributor.author | Platis, Andreas | |
dc.contributor.author | Wehner, Birgit | |
dc.contributor.author | Lampert, Astrid | |
dc.contributor.author | Bange, Jens | |
dc.date.accessioned | 2023-03-01T09:28:11Z | |
dc.date.available | 2023-03-01T09:28:11Z | |
dc.date.issued | 2022 | |
dc.description.abstract | 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. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/11610 | |
dc.identifier.uri | http://dx.doi.org/10.34657/10643 | |
dc.language.iso | eng | |
dc.publisher | London : Taylor & Francis | |
dc.relation.doi | https://doi.org/10.33265/polar.v41.7884 | |
dc.relation.essn | 1751-8369 | |
dc.rights.license | CC BY-NC 4.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc/4.0 | |
dc.subject.ddc | 550 | |
dc.subject.ddc | 570 | |
dc.subject.other | aircraft measurement | eng |
dc.subject.other | Arctic fjord | eng |
dc.subject.other | boundary layer | eng |
dc.subject.other | Kongsfjorden | eng |
dc.subject.other | Microscale meteorology | eng |
dc.subject.other | wind measurement | eng |
dc.title | Case studies of the wind field around Ny-Ålesund, Svalbard, using unmanned aircraft | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | |
wgl.contributor | TROPOS | |
wgl.subject | Geowissenschaften | ger |
wgl.subject | Biowissenschaften/Biologie | ger |
wgl.type | Zeitschriftenartikel | ger |
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