Sensitivity of frost occurrence to temperature variability in the European Alps
In this study, we set out to investigate the linkage of frost frequency to monthly mean temperature and its sensitivity to temperature changes. According to other related studies, the linkage between frost frequency and monthly mean temperature is approximated month per month via hyperbolic tangent...
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ftunivmilanoair:oai:air.unimi.it:2434/14893 2024-02-11T10:07:55+01:00 Sensitivity of frost occurrence to temperature variability in the European Alps I. Auer C. Matulla R. Bohm M. Ungersbock T. Nanni R. Pastorelli M. Maugeri I. Auer C. Matulla R. Bohm M. Ungersbock M. Maugeri T. Nanni R. Pastorelli 2005 http://hdl.handle.net/2434/14893 https://doi.org/10.1002/joc.1217 eng eng John Wiley & Sons info:eu-repo/semantics/altIdentifier/wos/WOS:000233185200005 volume:25 issue:13 firstpage:1749 lastpage:1766 journal:INTERNATIONAL JOURNAL OF CLIMATOLOGY http://hdl.handle.net/2434/14893 doi:10.1002/joc.1217 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-27744465644 frost variability frost sensitivity hyperbolic tangent functions reconstruction Greater Alpine region homogenised temperature Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre info:eu-repo/semantics/article 2005 ftunivmilanoair https://doi.org/10.1002/joc.1217 2024-01-23T23:16:48Z In this study, we set out to investigate the linkage of frost frequency to monthly mean temperature and its sensitivity to temperature changes. According to other related studies, the linkage between frost frequency and monthly mean temperature is approximated month per month via hyperbolic tangent functions. These models are validated using three validation experiments including split sample tests and temporal cross-validation. As there are quality-checked station data in Austria, whose temporal resolution and length allow for such a validation procedure, the validation experiments are conducted there. After the performance of the empirical models is evaluated and found adequate, the hyperbolic tangent approach is applied to about 500 stations within the so called Greater Alpine region (GAR), which extends from about 4 degrees E to 18 degrees E and from 44 degrees N to 49 degrees N. Using these models, it is possible to derive the sensitivity of frost frequency for any location for which the annual temperature cycle is known. This strategy is explicitly demonstrated for the Po Plain, where vertical temperature profiles on a monthly base are on hand as well as in Austria, where spatially high resolved maps of monthly mean temperature are available. Moreover, at stations for which long-term homogenised series of monthly mean temperature are available, reconstructions of frost frequency via the empirical models are done, returning to historical periods where no measurements of minimum temperature exist. On the basis of these findings, the impact of a possible future warming can be assessed, which is essential with regard to glaciers, permafrost and avalanches. Reduction in frost might bring positive economic aspects for agriculture, but negative consequences for low level skiing areas. Copyright (c) 2005 Royal Meteorological Society. Article in Journal/Newspaper permafrost The University of Milan: Archivio Istituzionale della Ricerca (AIR) Gar’ ENVELOPE(162.014,162.014,57.140,57.140) International Journal of Climatology 25 13 1749 1766 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
frost variability frost sensitivity hyperbolic tangent functions reconstruction Greater Alpine region homogenised temperature Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre |
spellingShingle |
frost variability frost sensitivity hyperbolic tangent functions reconstruction Greater Alpine region homogenised temperature Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre I. Auer C. Matulla R. Bohm M. Ungersbock T. Nanni R. Pastorelli M. Maugeri Sensitivity of frost occurrence to temperature variability in the European Alps |
topic_facet |
frost variability frost sensitivity hyperbolic tangent functions reconstruction Greater Alpine region homogenised temperature Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre |
description |
In this study, we set out to investigate the linkage of frost frequency to monthly mean temperature and its sensitivity to temperature changes. According to other related studies, the linkage between frost frequency and monthly mean temperature is approximated month per month via hyperbolic tangent functions. These models are validated using three validation experiments including split sample tests and temporal cross-validation. As there are quality-checked station data in Austria, whose temporal resolution and length allow for such a validation procedure, the validation experiments are conducted there. After the performance of the empirical models is evaluated and found adequate, the hyperbolic tangent approach is applied to about 500 stations within the so called Greater Alpine region (GAR), which extends from about 4 degrees E to 18 degrees E and from 44 degrees N to 49 degrees N. Using these models, it is possible to derive the sensitivity of frost frequency for any location for which the annual temperature cycle is known. This strategy is explicitly demonstrated for the Po Plain, where vertical temperature profiles on a monthly base are on hand as well as in Austria, where spatially high resolved maps of monthly mean temperature are available. Moreover, at stations for which long-term homogenised series of monthly mean temperature are available, reconstructions of frost frequency via the empirical models are done, returning to historical periods where no measurements of minimum temperature exist. On the basis of these findings, the impact of a possible future warming can be assessed, which is essential with regard to glaciers, permafrost and avalanches. Reduction in frost might bring positive economic aspects for agriculture, but negative consequences for low level skiing areas. Copyright (c) 2005 Royal Meteorological Society. |
author2 |
I. Auer C. Matulla R. Bohm M. Ungersbock M. Maugeri T. Nanni R. Pastorelli |
format |
Article in Journal/Newspaper |
author |
I. Auer C. Matulla R. Bohm M. Ungersbock T. Nanni R. Pastorelli M. Maugeri |
author_facet |
I. Auer C. Matulla R. Bohm M. Ungersbock T. Nanni R. Pastorelli M. Maugeri |
author_sort |
I. Auer |
title |
Sensitivity of frost occurrence to temperature variability in the European Alps |
title_short |
Sensitivity of frost occurrence to temperature variability in the European Alps |
title_full |
Sensitivity of frost occurrence to temperature variability in the European Alps |
title_fullStr |
Sensitivity of frost occurrence to temperature variability in the European Alps |
title_full_unstemmed |
Sensitivity of frost occurrence to temperature variability in the European Alps |
title_sort |
sensitivity of frost occurrence to temperature variability in the european alps |
publisher |
John Wiley & Sons |
publishDate |
2005 |
url |
http://hdl.handle.net/2434/14893 https://doi.org/10.1002/joc.1217 |
long_lat |
ENVELOPE(162.014,162.014,57.140,57.140) |
geographic |
Gar’ |
geographic_facet |
Gar’ |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000233185200005 volume:25 issue:13 firstpage:1749 lastpage:1766 journal:INTERNATIONAL JOURNAL OF CLIMATOLOGY http://hdl.handle.net/2434/14893 doi:10.1002/joc.1217 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-27744465644 |
op_doi |
https://doi.org/10.1002/joc.1217 |
container_title |
International Journal of Climatology |
container_volume |
25 |
container_issue |
13 |
container_start_page |
1749 |
op_container_end_page |
1766 |
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1790606776903663616 |