Spatiotemporal trend analysis of climate indices for the European continent

The objective of this study is to analyze and visualize the spatial distribution of trends for 74 climate indices on a monthly time-scale in direction, magnitude, and significance level at a resolution of 0.1° during the period of 1950–2021 over the European region. The Mann–Kendall and Sen's s...

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Main Authors: Smit Chetan Doshi, Gerrit Lohmann, Norel Rimbu, Monica Ionita
Format: Article
Language:English
Published: IWA Publishing 2023-09-01
Series:Journal of Water and Climate Change
Subjects:
Online Access:http://jwcc.iwaponline.com/content/14/9/3112
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author Smit Chetan Doshi
Gerrit Lohmann
Norel Rimbu
Monica Ionita
author_facet Smit Chetan Doshi
Gerrit Lohmann
Norel Rimbu
Monica Ionita
author_sort Smit Chetan Doshi
collection DOAJ
description The objective of this study is to analyze and visualize the spatial distribution of trends for 74 climate indices on a monthly time-scale in direction, magnitude, and significance level at a resolution of 0.1° during the period of 1950–2021 over the European region. The Mann–Kendall and Sen's slope estimators reveal that growing degree days with mean air temperature >4 °C (gd4) and heating degree days with mean air temperature <17 °C (hd17) show the largest increase (0.93 °C August) and decrease (1.03 °C July), respectively. The universal thermal climate index (utci), relative humidity (rh), wind chill index (wci), global radiation (bio20), and potential evapotranspiration (pet) are of significant importance due to higher correlation and magnitude of change. Country-specific zoning shows the highest warmer days during August experienced by Bosnia and Herzegovina (southeastern Europe) and lower colder days during January by Belarus (eastern Europe). High wind and high utci were experienced by Liechtenstein (southeastern Europe) region during July. The highest wci was experienced by San Marino (southern Europe) in June and Portugal (southern Europe) in March. Bio20 and rh decline were experienced by Russia (eastern Europe) and Moldova (southeastern Europe) in May and September, respectively. Results are useful to mitigate the risk associated with each of the climate indices for specific European regions. HIGHLIGHTS Trend analysis of 74 climate indices in Europe using Mann–Kendall and Sen's slope.; Correlation value of climate indices reveals patterns of annual, seasonal, and monthly tie-ups.; Increase shifts in average temperature and warmer conditions in European regions.; Analysis indicates small European regions are also impacted.; Climate indices trend assessment of the most susceptible country of Europe.;
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spelling doaj.art-3a031eb329484a599fb793c142eafc9b2024-04-17T08:32:46ZengIWA PublishingJournal of Water and Climate Change2040-22442408-93542023-09-011493112313010.2166/wcc.2023.183183Spatiotemporal trend analysis of climate indices for the European continentSmit Chetan Doshi0Gerrit Lohmann1Norel Rimbu2Monica Ionita3 Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany The objective of this study is to analyze and visualize the spatial distribution of trends for 74 climate indices on a monthly time-scale in direction, magnitude, and significance level at a resolution of 0.1° during the period of 1950–2021 over the European region. The Mann–Kendall and Sen's slope estimators reveal that growing degree days with mean air temperature >4 °C (gd4) and heating degree days with mean air temperature <17 °C (hd17) show the largest increase (0.93 °C August) and decrease (1.03 °C July), respectively. The universal thermal climate index (utci), relative humidity (rh), wind chill index (wci), global radiation (bio20), and potential evapotranspiration (pet) are of significant importance due to higher correlation and magnitude of change. Country-specific zoning shows the highest warmer days during August experienced by Bosnia and Herzegovina (southeastern Europe) and lower colder days during January by Belarus (eastern Europe). High wind and high utci were experienced by Liechtenstein (southeastern Europe) region during July. The highest wci was experienced by San Marino (southern Europe) in June and Portugal (southern Europe) in March. Bio20 and rh decline were experienced by Russia (eastern Europe) and Moldova (southeastern Europe) in May and September, respectively. Results are useful to mitigate the risk associated with each of the climate indices for specific European regions. HIGHLIGHTS Trend analysis of 74 climate indices in Europe using Mann–Kendall and Sen's slope.; Correlation value of climate indices reveals patterns of annual, seasonal, and monthly tie-ups.; Increase shifts in average temperature and warmer conditions in European regions.; Analysis indicates small European regions are also impacted.; Climate indices trend assessment of the most susceptible country of Europe.;http://jwcc.iwaponline.com/content/14/9/3112climate indiceseuropemann–kendallsen's slopetrend analysis
spellingShingle Smit Chetan Doshi
Gerrit Lohmann
Norel Rimbu
Monica Ionita
Spatiotemporal trend analysis of climate indices for the European continent
Journal of Water and Climate Change
climate indices
europe
mann–kendall
sen's slope
trend analysis
title Spatiotemporal trend analysis of climate indices for the European continent
title_full Spatiotemporal trend analysis of climate indices for the European continent
title_fullStr Spatiotemporal trend analysis of climate indices for the European continent
title_full_unstemmed Spatiotemporal trend analysis of climate indices for the European continent
title_short Spatiotemporal trend analysis of climate indices for the European continent
title_sort spatiotemporal trend analysis of climate indices for the european continent
topic climate indices
europe
mann–kendall
sen's slope
trend analysis
url http://jwcc.iwaponline.com/content/14/9/3112
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AT gerritlohmann spatiotemporaltrendanalysisofclimateindicesfortheeuropeancontinent
AT norelrimbu spatiotemporaltrendanalysisofclimateindicesfortheeuropeancontinent
AT monicaionita spatiotemporaltrendanalysisofclimateindicesfortheeuropeancontinent