Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring
Air temperature and specific humidity inversions and low-level jets were studied over two Svalbard fjords, Isfjorden and Kongsfjorden, applying three tethersonde systems. Tethersonde operation practices notably affected observations on inversion and jet properties. The inversion strength and depth w...
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ftawi:oai:epic.awi.de:25828 2024-09-15T18:15:15+00:00 Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring Vihma, Timo Kilpeläinen, Tiina Manninen, Miina Sjöblom, Anna Jakobson, Erko Palo, Timo Jaagus, Jaak Maturilli, Marion 2011 application/pdf https://epic.awi.de/id/eprint/25828/ https://epic.awi.de/id/eprint/25828/1/vihma_AdvMet2011.pdf http://www.hindawi.com/journals/amet/2011/486807/ https://hdl.handle.net/10013/epic.38838 https://hdl.handle.net/10013/epic.38838.d001 unknown Hindawi Publishing Corporation https://epic.awi.de/id/eprint/25828/1/vihma_AdvMet2011.pdf https://hdl.handle.net/10013/epic.38838.d001 Vihma, T. , Kilpeläinen, T. , Manninen, M. , Sjöblom, A. , Jakobson, E. , Palo, T. , Jaagus, J. and Maturilli, M. orcid:0000-0001-6818-7383 (2011) Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring , Advances in Meteorology, 2011 . doi:10.1155/2011/486807 <https://doi.org/10.1155/2011%2F486807> , hdl:10013/epic.38838 EPIC3Advances in Meteorology, Hindawi Publishing Corporation, 2011 Article peerRev 2011 ftawi https://doi.org/10.1155/2011/486807 2024-06-24T04:03:41Z Air temperature and specific humidity inversions and low-level jets were studied over two Svalbard fjords, Isfjorden and Kongsfjorden, applying three tethersonde systems. Tethersonde operation practices notably affected observations on inversion and jet properties. The inversion strength and depth were strongly affected by weather conditions at the 850 hPa level. Strong inversions were deep with a highly elevated base, and the strongest ones occurred in warm air mass. Unexpectedly, downward longwave radiation measured at the sounding site did not correlate with the inversion properties. Temperature inversions had lower base and top heights than humidity inversions, the former due to surface cooling and the latter due to adiabatic cooling with height. Most low-level jets were related to katabatic winds. Over the ice-covered Kongsfjorden, jets were lifted above a cold-air pool on the fjord; the jet core was located highest when the snow surface was coldest. At the ice-free Isfjorden, jets were located lower. Article in Journal/Newspaper Isfjord* Isfjorden Kongsfjord* Kongsfjorden Svalbard Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Advances in Meteorology 2011 1 14 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Air temperature and specific humidity inversions and low-level jets were studied over two Svalbard fjords, Isfjorden and Kongsfjorden, applying three tethersonde systems. Tethersonde operation practices notably affected observations on inversion and jet properties. The inversion strength and depth were strongly affected by weather conditions at the 850 hPa level. Strong inversions were deep with a highly elevated base, and the strongest ones occurred in warm air mass. Unexpectedly, downward longwave radiation measured at the sounding site did not correlate with the inversion properties. Temperature inversions had lower base and top heights than humidity inversions, the former due to surface cooling and the latter due to adiabatic cooling with height. Most low-level jets were related to katabatic winds. Over the ice-covered Kongsfjorden, jets were lifted above a cold-air pool on the fjord; the jet core was located highest when the snow surface was coldest. At the ice-free Isfjorden, jets were located lower. |
format |
Article in Journal/Newspaper |
author |
Vihma, Timo Kilpeläinen, Tiina Manninen, Miina Sjöblom, Anna Jakobson, Erko Palo, Timo Jaagus, Jaak Maturilli, Marion |
spellingShingle |
Vihma, Timo Kilpeläinen, Tiina Manninen, Miina Sjöblom, Anna Jakobson, Erko Palo, Timo Jaagus, Jaak Maturilli, Marion Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
author_facet |
Vihma, Timo Kilpeläinen, Tiina Manninen, Miina Sjöblom, Anna Jakobson, Erko Palo, Timo Jaagus, Jaak Maturilli, Marion |
author_sort |
Vihma, Timo |
title |
Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
title_short |
Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
title_full |
Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
title_fullStr |
Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
title_full_unstemmed |
Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring |
title_sort |
characteristics of temperature and humidity inversions and low-level jets over svalbard fjords in spring |
publisher |
Hindawi Publishing Corporation |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/25828/ https://epic.awi.de/id/eprint/25828/1/vihma_AdvMet2011.pdf http://www.hindawi.com/journals/amet/2011/486807/ https://hdl.handle.net/10013/epic.38838 https://hdl.handle.net/10013/epic.38838.d001 |
genre |
Isfjord* Isfjorden Kongsfjord* Kongsfjorden Svalbard |
genre_facet |
Isfjord* Isfjorden Kongsfjord* Kongsfjorden Svalbard |
op_source |
EPIC3Advances in Meteorology, Hindawi Publishing Corporation, 2011 |
op_relation |
https://epic.awi.de/id/eprint/25828/1/vihma_AdvMet2011.pdf https://hdl.handle.net/10013/epic.38838.d001 Vihma, T. , Kilpeläinen, T. , Manninen, M. , Sjöblom, A. , Jakobson, E. , Palo, T. , Jaagus, J. and Maturilli, M. orcid:0000-0001-6818-7383 (2011) Characteristics of Temperature and Humidity Inversions and Low-Level Jets over Svalbard Fjords in Spring , Advances in Meteorology, 2011 . doi:10.1155/2011/486807 <https://doi.org/10.1155/2011%2F486807> , hdl:10013/epic.38838 |
op_doi |
https://doi.org/10.1155/2011/486807 |
container_title |
Advances in Meteorology |
container_volume |
2011 |
container_start_page |
1 |
op_container_end_page |
14 |
_version_ |
1810453006750056448 |