Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones
One of the multiple approaches currently explored to mitigate the effects of hydro-meteorological hazardous events aims at improving the numerical weather forecasts. Under an ever increasing societal demand for cost cuts and more precise forecasts, targeted observations are currently receiving great...
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2007
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00032271 2023-05-15T17:33:39+02:00 Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones Homar, V. Jansà, A. Campins, J. Genovés, A. Ramis, C. 2007-07 electronic https://doi.org/10.5194/nhess-7-445-2007 https://noa.gwlb.de/receive/cop_mods_00032271 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032225/nhess-7-445-2007.pdf https://nhess.copernicus.org/articles/7/445/2007/nhess-7-445-2007.pdf eng eng Copernicus Publications Natural Hazards and Earth System Sciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2064587 -- http://www.nat-hazards-earth-syst-sci.net/ -- 1684-9981 https://doi.org/10.5194/nhess-7-445-2007 https://noa.gwlb.de/receive/cop_mods_00032271 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032225/nhess-7-445-2007.pdf https://nhess.copernicus.org/articles/7/445/2007/nhess-7-445-2007.pdf https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2007 ftnonlinearchiv https://doi.org/10.5194/nhess-7-445-2007 2022-02-08T22:46:21Z One of the multiple approaches currently explored to mitigate the effects of hydro-meteorological hazardous events aims at improving the numerical weather forecasts. Under an ever increasing societal demand for cost cuts and more precise forecasts, targeted observations are currently receiving great attention within the operational weather community. The MEDEX project (http://medex.inm.uib.es) is aimed at improving the forecasts of high impact weather (HIW) in the Mediterranean and, in particular, proposes the creation of a climatology of sensitivities of such episodes. The construction of a comprehensive climatology of sensitivities is hampered by the lack of an exhaustive collection of Mediterranean HIW events. In this study we contribute with a systematic climatology of Mediterranean intense cyclones. We perform an objective cluster analysis of intense cyclones detected from the ECMWF ERA40 reanalysis using a k-means algorithm and compute the sensitivities for each of the resulting classes. For each cluster, a representative sensitivity field is computed using the MM5 Adjoint Modeling system. The results show that although the sensitive areas for intense Mediterranean cyclones are not particularly confined, it is remarkable how areas poorly sampled by the regular observing networks, such as North Africa, the Mediterranean Sea and the eastern North-Atlantic, are highlighted in the prototype sensitivity maps. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Natural Hazards and Earth System Sciences 7 4 445 454 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Homar, V. Jansà, A. Campins, J. Genovés, A. Ramis, C. Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
topic_facet |
article Verlagsveröffentlichung |
description |
One of the multiple approaches currently explored to mitigate the effects of hydro-meteorological hazardous events aims at improving the numerical weather forecasts. Under an ever increasing societal demand for cost cuts and more precise forecasts, targeted observations are currently receiving great attention within the operational weather community. The MEDEX project (http://medex.inm.uib.es) is aimed at improving the forecasts of high impact weather (HIW) in the Mediterranean and, in particular, proposes the creation of a climatology of sensitivities of such episodes. The construction of a comprehensive climatology of sensitivities is hampered by the lack of an exhaustive collection of Mediterranean HIW events. In this study we contribute with a systematic climatology of Mediterranean intense cyclones. We perform an objective cluster analysis of intense cyclones detected from the ECMWF ERA40 reanalysis using a k-means algorithm and compute the sensitivities for each of the resulting classes. For each cluster, a representative sensitivity field is computed using the MM5 Adjoint Modeling system. The results show that although the sensitive areas for intense Mediterranean cyclones are not particularly confined, it is remarkable how areas poorly sampled by the regular observing networks, such as North Africa, the Mediterranean Sea and the eastern North-Atlantic, are highlighted in the prototype sensitivity maps. |
format |
Article in Journal/Newspaper |
author |
Homar, V. Jansà, A. Campins, J. Genovés, A. Ramis, C. |
author_facet |
Homar, V. Jansà, A. Campins, J. Genovés, A. Ramis, C. |
author_sort |
Homar, V. |
title |
Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
title_short |
Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
title_full |
Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
title_fullStr |
Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
title_full_unstemmed |
Towards a systematic climatology of sensitivities of Mediterranean high impact weather: a contribution based on intense cyclones |
title_sort |
towards a systematic climatology of sensitivities of mediterranean high impact weather: a contribution based on intense cyclones |
publisher |
Copernicus Publications |
publishDate |
2007 |
url |
https://doi.org/10.5194/nhess-7-445-2007 https://noa.gwlb.de/receive/cop_mods_00032271 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032225/nhess-7-445-2007.pdf https://nhess.copernicus.org/articles/7/445/2007/nhess-7-445-2007.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Natural Hazards and Earth System Sciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2064587 -- http://www.nat-hazards-earth-syst-sci.net/ -- 1684-9981 https://doi.org/10.5194/nhess-7-445-2007 https://noa.gwlb.de/receive/cop_mods_00032271 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00032225/nhess-7-445-2007.pdf https://nhess.copernicus.org/articles/7/445/2007/nhess-7-445-2007.pdf |
op_rights |
https://open-access.net/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/nhess-7-445-2007 |
container_title |
Natural Hazards and Earth System Sciences |
container_volume |
7 |
container_issue |
4 |
container_start_page |
445 |
op_container_end_page |
454 |
_version_ |
1766132227326869504 |