Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns
Fifteen temperature indices recommended by the ETCCDI (Expert Team on Climate Change Detection and Indices) were applied to evaluate spatiotemporal variability and trends in annual intensity, frequency, and duration of extreme temperature statistics in Finland during 1961–2011. Statistically signifi...
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ftdoajarticles:oai:doaj.org/article:eb476a2cba9b4876926da2348d411be2 2023-05-15T15:07:10+02:00 Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns Masoud Irannezhad Hamid Moradkhani Bjørn Kløve 2018-01-01T00:00:00Z https://doi.org/10.1155/2018/7169840 https://doaj.org/article/eb476a2cba9b4876926da2348d411be2 EN eng Hindawi Limited http://dx.doi.org/10.1155/2018/7169840 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2018/7169840 https://doaj.org/article/eb476a2cba9b4876926da2348d411be2 Advances in Meteorology, Vol 2018 (2018) Meteorology. Climatology QC851-999 article 2018 ftdoajarticles https://doi.org/10.1155/2018/7169840 2022-12-31T09:03:55Z Fifteen temperature indices recommended by the ETCCDI (Expert Team on Climate Change Detection and Indices) were applied to evaluate spatiotemporal variability and trends in annual intensity, frequency, and duration of extreme temperature statistics in Finland during 1961–2011. Statistically significant relationships between these high-resolution (10 km) temperature indices and seven influential Northern Hemisphere teleconnection patterns (NHTPs) for the interannual climate variability were also identified. During the study period (1961–2011), warming trends in extreme temperatures were generally manifested by statistically significant increases in cold temperature extremes rather than in the warm temperature extremes. As expected, warm days and nights became more frequent, while fewer cold days and nights occurred. The frequency of frost and icing days also decreased. Finland experienced more (less) frequent warm (cold) temperature extremes over the past few decades. Interestingly, significant lengthening in cold spells was observed over the upper part of northern Finland, while no clear changes are found in warm spells. Interannual variations in the temperature indices were significantly associated with a number of NHTPs. In general, warm temperature extremes show significant correlations with the East Atlantic and the Scandinavia patterns and cold temperature extremes with the Arctic Oscillation and the North Atlantic Oscillation patterns. Article in Journal/Newspaper Arctic Climate change North Atlantic North Atlantic oscillation Northern Finland Directory of Open Access Journals: DOAJ Articles Arctic Advances in Meteorology 2018 1 17 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Meteorology. Climatology QC851-999 |
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Meteorology. Climatology QC851-999 Masoud Irannezhad Hamid Moradkhani Bjørn Kløve Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
topic_facet |
Meteorology. Climatology QC851-999 |
description |
Fifteen temperature indices recommended by the ETCCDI (Expert Team on Climate Change Detection and Indices) were applied to evaluate spatiotemporal variability and trends in annual intensity, frequency, and duration of extreme temperature statistics in Finland during 1961–2011. Statistically significant relationships between these high-resolution (10 km) temperature indices and seven influential Northern Hemisphere teleconnection patterns (NHTPs) for the interannual climate variability were also identified. During the study period (1961–2011), warming trends in extreme temperatures were generally manifested by statistically significant increases in cold temperature extremes rather than in the warm temperature extremes. As expected, warm days and nights became more frequent, while fewer cold days and nights occurred. The frequency of frost and icing days also decreased. Finland experienced more (less) frequent warm (cold) temperature extremes over the past few decades. Interestingly, significant lengthening in cold spells was observed over the upper part of northern Finland, while no clear changes are found in warm spells. Interannual variations in the temperature indices were significantly associated with a number of NHTPs. In general, warm temperature extremes show significant correlations with the East Atlantic and the Scandinavia patterns and cold temperature extremes with the Arctic Oscillation and the North Atlantic Oscillation patterns. |
format |
Article in Journal/Newspaper |
author |
Masoud Irannezhad Hamid Moradkhani Bjørn Kløve |
author_facet |
Masoud Irannezhad Hamid Moradkhani Bjørn Kløve |
author_sort |
Masoud Irannezhad |
title |
Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
title_short |
Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
title_full |
Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
title_fullStr |
Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
title_full_unstemmed |
Spatiotemporal Variability and Trends in Extreme Temperature Events in Finland over the Recent Decades: Influence of Northern Hemisphere Teleconnection Patterns |
title_sort |
spatiotemporal variability and trends in extreme temperature events in finland over the recent decades: influence of northern hemisphere teleconnection patterns |
publisher |
Hindawi Limited |
publishDate |
2018 |
url |
https://doi.org/10.1155/2018/7169840 https://doaj.org/article/eb476a2cba9b4876926da2348d411be2 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change North Atlantic North Atlantic oscillation Northern Finland |
genre_facet |
Arctic Climate change North Atlantic North Atlantic oscillation Northern Finland |
op_source |
Advances in Meteorology, Vol 2018 (2018) |
op_relation |
http://dx.doi.org/10.1155/2018/7169840 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2018/7169840 https://doaj.org/article/eb476a2cba9b4876926da2348d411be2 |
op_doi |
https://doi.org/10.1155/2018/7169840 |
container_title |
Advances in Meteorology |
container_volume |
2018 |
container_start_page |
1 |
op_container_end_page |
17 |
_version_ |
1766338728536571904 |