Intercomparison of middle-atmospheric wind in observations and models
Wind profile information throughout the entire upper stratosphere and lower mesosphere (USLM) is important for the understanding of atmospheric dynamics but became available only recently, thanks to developments in remote sensing techniques and modelling approaches. However, as wind measurements fro...
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ftdatacite:10.7892/boris.120067 2023-05-15T13:25:19+02:00 Intercomparison of middle-atmospheric wind in observations and models Rüfenacht, Rolf Baumgarten, Gerd Hildebrand, Jens Schranz, Franziska Martina Matthias, Vivien Stober, Gunter Lübken, Franz-Josef Kämpfer, Niklaus 2018 application/pdf https://dx.doi.org/10.7892/boris.120067 https://boris.unibe.ch/120067/ en eng Copernicus Publications info:eu-repo/semantics/openAccess 620 Engineering Text article-journal ScholarlyArticle 2018 ftdatacite https://doi.org/10.7892/boris.120067 2021-11-05T12:55:41Z Wind profile information throughout the entire upper stratosphere and lower mesosphere (USLM) is important for the understanding of atmospheric dynamics but became available only recently, thanks to developments in remote sensing techniques and modelling approaches. However, as wind measurements from these altitudes are rare, such products have generally not yet been validated with (other) observations. This paper presents the first long-term intercomparison of wind observations in the USLM by co-located microwave radiometer and lidar instruments at Andenes, Norway (69.3°N, 16.0°E). Good correspondence has been found at all altitudes for both horizontal wind components for nighttime as well as daylight conditions. Biases are mostly within the random errors and do not exceed 5–10ms−1, which is less than 10% of the typically encountered wind speeds. Moreover, comparisons of the observations with the major reanalyses and models covering this altitude range are shown, in particular with the recently released ERA5, ECMWF's first reanalysis to cover the whole USLM region. The agreement between models and observations is very good in general, but temporally limited occurrences of pronounced discrepancies (up to 40ms−1) exist. In the article's Appendix the possibility of obtaining nighttime wind information about the mesopause region by means of microwave radiometry is investigated. Text Andenes DataCite Metadata Store (German National Library of Science and Technology) Norway |
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English |
topic |
620 Engineering |
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620 Engineering Rüfenacht, Rolf Baumgarten, Gerd Hildebrand, Jens Schranz, Franziska Martina Matthias, Vivien Stober, Gunter Lübken, Franz-Josef Kämpfer, Niklaus Intercomparison of middle-atmospheric wind in observations and models |
topic_facet |
620 Engineering |
description |
Wind profile information throughout the entire upper stratosphere and lower mesosphere (USLM) is important for the understanding of atmospheric dynamics but became available only recently, thanks to developments in remote sensing techniques and modelling approaches. However, as wind measurements from these altitudes are rare, such products have generally not yet been validated with (other) observations. This paper presents the first long-term intercomparison of wind observations in the USLM by co-located microwave radiometer and lidar instruments at Andenes, Norway (69.3°N, 16.0°E). Good correspondence has been found at all altitudes for both horizontal wind components for nighttime as well as daylight conditions. Biases are mostly within the random errors and do not exceed 5–10ms−1, which is less than 10% of the typically encountered wind speeds. Moreover, comparisons of the observations with the major reanalyses and models covering this altitude range are shown, in particular with the recently released ERA5, ECMWF's first reanalysis to cover the whole USLM region. The agreement between models and observations is very good in general, but temporally limited occurrences of pronounced discrepancies (up to 40ms−1) exist. In the article's Appendix the possibility of obtaining nighttime wind information about the mesopause region by means of microwave radiometry is investigated. |
format |
Text |
author |
Rüfenacht, Rolf Baumgarten, Gerd Hildebrand, Jens Schranz, Franziska Martina Matthias, Vivien Stober, Gunter Lübken, Franz-Josef Kämpfer, Niklaus |
author_facet |
Rüfenacht, Rolf Baumgarten, Gerd Hildebrand, Jens Schranz, Franziska Martina Matthias, Vivien Stober, Gunter Lübken, Franz-Josef Kämpfer, Niklaus |
author_sort |
Rüfenacht, Rolf |
title |
Intercomparison of middle-atmospheric wind in observations and models |
title_short |
Intercomparison of middle-atmospheric wind in observations and models |
title_full |
Intercomparison of middle-atmospheric wind in observations and models |
title_fullStr |
Intercomparison of middle-atmospheric wind in observations and models |
title_full_unstemmed |
Intercomparison of middle-atmospheric wind in observations and models |
title_sort |
intercomparison of middle-atmospheric wind in observations and models |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://dx.doi.org/10.7892/boris.120067 https://boris.unibe.ch/120067/ |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Andenes |
genre_facet |
Andenes |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.7892/boris.120067 |
_version_ |
1766384669770645504 |