Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf
An important aspect of inevitable surprises, for the climate system, is the potential of occurrence of compound extreme events. These can be events that occur at the same time over the same geographic location or at multiple locations within a given country or around the world. In this study, we inv...
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ftfrontimediafig:oai:figshare.com:article/14741802 2023-05-15T16:12:06+02:00 Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf Monica Ionita Diana E. Caldarescu Viorica Nagavciuc 2021-06-07T05:01:53Z https://doi.org/10.3389/fclim.2021.688991.s001 https://figshare.com/articles/dataset/Table_1_Compound_Hot_and_Dry_Events_in_Europe_Variability_and_Large-Scale_Drivers_pdf/14741802 unknown doi:10.3389/fclim.2021.688991.s001 https://figshare.com/articles/dataset/Table_1_Compound_Hot_and_Dry_Events_in_Europe_Variability_and_Large-Scale_Drivers_pdf/14741802 CC BY 4.0 CC-BY Climate Science Climate Change Processes Climatology (excl. Climate Change Processes) Carbon Sequestration Science drought heatwave compound events atmospheric circulation climate variability Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fclim.2021.688991.s001 2021-06-09T22:59:19Z An important aspect of inevitable surprises, for the climate system, is the potential of occurrence of compound extreme events. These can be events that occur at the same time over the same geographic location or at multiple locations within a given country or around the world. In this study, we investigate the spatio-temporal variability of summer compound hot and dry (CHD) events at European level and we quantify the relationship between the occurrence of CHDs and the large-scale atmospheric circulation. Here we show that summer 1955 stands out as the year with the largest spatial extent characterized by hot and dry conditions (~21.2% at European level), followed by 2015 (~20.3%), 1959 (~19.4%), and 1950 (~16.9%). By employing an Empirical Orthogonal Function (EOF) analysis we show that there are three preferred centers of action of CHDs over Europe: Fennoscandia, the central part of Europe, and the south-eastern part of Europe. Overall, hot and dry summers are, in general, associated with persistent high-pressure systems over the regions affected by CHDs, which in turn reduces the zonal flow and diverts the storm tracks southward. The high-pressure systems associated with each mode of variability largely suppresses ascending motions, reduces water vapor condensation and precipitation formation, leading to drought conditions below this atmospheric system. This study may help improve our understanding of the spatio-temporal variability of hot and dry summers, at European level, as well as their driving mechanisms. Dataset Fennoscandia Frontiers: Figshare |
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Open Polar |
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Frontiers: Figshare |
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ftfrontimediafig |
language |
unknown |
topic |
Climate Science Climate Change Processes Climatology (excl. Climate Change Processes) Carbon Sequestration Science drought heatwave compound events atmospheric circulation climate variability |
spellingShingle |
Climate Science Climate Change Processes Climatology (excl. Climate Change Processes) Carbon Sequestration Science drought heatwave compound events atmospheric circulation climate variability Monica Ionita Diana E. Caldarescu Viorica Nagavciuc Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
topic_facet |
Climate Science Climate Change Processes Climatology (excl. Climate Change Processes) Carbon Sequestration Science drought heatwave compound events atmospheric circulation climate variability |
description |
An important aspect of inevitable surprises, for the climate system, is the potential of occurrence of compound extreme events. These can be events that occur at the same time over the same geographic location or at multiple locations within a given country or around the world. In this study, we investigate the spatio-temporal variability of summer compound hot and dry (CHD) events at European level and we quantify the relationship between the occurrence of CHDs and the large-scale atmospheric circulation. Here we show that summer 1955 stands out as the year with the largest spatial extent characterized by hot and dry conditions (~21.2% at European level), followed by 2015 (~20.3%), 1959 (~19.4%), and 1950 (~16.9%). By employing an Empirical Orthogonal Function (EOF) analysis we show that there are three preferred centers of action of CHDs over Europe: Fennoscandia, the central part of Europe, and the south-eastern part of Europe. Overall, hot and dry summers are, in general, associated with persistent high-pressure systems over the regions affected by CHDs, which in turn reduces the zonal flow and diverts the storm tracks southward. The high-pressure systems associated with each mode of variability largely suppresses ascending motions, reduces water vapor condensation and precipitation formation, leading to drought conditions below this atmospheric system. This study may help improve our understanding of the spatio-temporal variability of hot and dry summers, at European level, as well as their driving mechanisms. |
format |
Dataset |
author |
Monica Ionita Diana E. Caldarescu Viorica Nagavciuc |
author_facet |
Monica Ionita Diana E. Caldarescu Viorica Nagavciuc |
author_sort |
Monica Ionita |
title |
Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
title_short |
Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
title_full |
Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
title_fullStr |
Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
title_full_unstemmed |
Table_1_Compound Hot and Dry Events in Europe: Variability and Large-Scale Drivers.pdf |
title_sort |
table_1_compound hot and dry events in europe: variability and large-scale drivers.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/fclim.2021.688991.s001 https://figshare.com/articles/dataset/Table_1_Compound_Hot_and_Dry_Events_in_Europe_Variability_and_Large-Scale_Drivers_pdf/14741802 |
genre |
Fennoscandia |
genre_facet |
Fennoscandia |
op_relation |
doi:10.3389/fclim.2021.688991.s001 https://figshare.com/articles/dataset/Table_1_Compound_Hot_and_Dry_Events_in_Europe_Variability_and_Large-Scale_Drivers_pdf/14741802 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fclim.2021.688991.s001 |
_version_ |
1765997327520104448 |