Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia

In recent decades, there have been significant problems worldwide related to global warming and the intensification of extreme temperature and rainfall events. This research evaluated daily temperature and rainfall indices trends to identify whether warming signals have occurred in South Australia o...

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Main Authors: Federico Ferrelli, Melisa Pontrelli Albisetti, Andrea Soledad Brendel, Andrés Iván Casoni, Patrick Alan Hesp
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/16/2/351
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author Federico Ferrelli
Melisa Pontrelli Albisetti
Andrea Soledad Brendel
Andrés Iván Casoni
Patrick Alan Hesp
author_facet Federico Ferrelli
Melisa Pontrelli Albisetti
Andrea Soledad Brendel
Andrés Iván Casoni
Patrick Alan Hesp
author_sort Federico Ferrelli
collection DOAJ
description In recent decades, there have been significant problems worldwide related to global warming and the intensification of extreme temperature and rainfall events. This research evaluated daily temperature and rainfall indices trends to identify whether warming signals have occurred in South Australia over the past fifty years. Extreme cold, hot, and rainfall events were calculated using climatic data from 37 weather stations. A Mann–Kendall test was used for trend analysis with Sen’s estimator. As a result, we determined that for the 1970–2021 period, the maximum and minimum temperatures increased by 1.1 and 0.7 °C, respectively, while precipitation had a negative trend (−52.2 mm per period). Since statistical significance was found in analysing extreme cold and hot events, we find that warming signals have several impacts on South Australia. In the case of rainfall events, we identified a heterogeneous pattern characterised by a reduction in the annual amount and an increase in extreme rainfall events. The findings enable us to conclude that the area shows signs of global warming that could affect the intensity and magnitude of droughts. This information is essential for continuing with current management strategies to adapt and mitigate the effects of global warming in South Australia.
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spelling doaj.art-d95d8ef474e4448283efcc5151ca67132024-01-26T18:52:18ZengMDPI AGWater2073-44412024-01-0116235110.3390/w16020351Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South AustraliaFederico Ferrelli0Melisa Pontrelli Albisetti1Andrea Soledad Brendel2Andrés Iván Casoni3Patrick Alan Hesp4Instituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000 (Camino La Carrindanga km 7,5) Complejo CCT CONICET B8000FWB, Bahía Blanca 8000, ArgentinaBeach and Dune Systems (BEADS) Laboratory, College of Science and Engineering, Flinders University, Bedford Park 5042, AustraliaInstituto Argentino de Oceanografía (IADO), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000 (Camino La Carrindanga km 7,5) Complejo CCT CONICET B8000FWB, Bahía Blanca 8000, ArgentinaPlanta Piloto de Ingeniería Química (PLAPIQUI), Universidad Nacional del Sur (UNS)-CONICET, Florida 8000 (Camino La Carrindanga km 7,5) Complejo CCT CONICET B8000FWB, Bahía Blanca 8000, ArgentinaBeach and Dune Systems (BEADS) Laboratory, College of Science and Engineering, Flinders University, Bedford Park 5042, AustraliaIn recent decades, there have been significant problems worldwide related to global warming and the intensification of extreme temperature and rainfall events. This research evaluated daily temperature and rainfall indices trends to identify whether warming signals have occurred in South Australia over the past fifty years. Extreme cold, hot, and rainfall events were calculated using climatic data from 37 weather stations. A Mann–Kendall test was used for trend analysis with Sen’s estimator. As a result, we determined that for the 1970–2021 period, the maximum and minimum temperatures increased by 1.1 and 0.7 °C, respectively, while precipitation had a negative trend (−52.2 mm per period). Since statistical significance was found in analysing extreme cold and hot events, we find that warming signals have several impacts on South Australia. In the case of rainfall events, we identified a heterogeneous pattern characterised by a reduction in the annual amount and an increase in extreme rainfall events. The findings enable us to conclude that the area shows signs of global warming that could affect the intensity and magnitude of droughts. This information is essential for continuing with current management strategies to adapt and mitigate the effects of global warming in South Australia.https://www.mdpi.com/2073-4441/16/2/351rainfall and temperature trendsclimate changeSouth AustraliaSouthern Hemisphere
spellingShingle Federico Ferrelli
Melisa Pontrelli Albisetti
Andrea Soledad Brendel
Andrés Iván Casoni
Patrick Alan Hesp
Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
Water
rainfall and temperature trends
climate change
South Australia
Southern Hemisphere
title Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
title_full Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
title_fullStr Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
title_full_unstemmed Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
title_short Appraisal of Daily Temperature and Rainfall Events in the Context of Global Warming in South Australia
title_sort appraisal of daily temperature and rainfall events in the context of global warming in south australia
topic rainfall and temperature trends
climate change
South Australia
Southern Hemisphere
url https://www.mdpi.com/2073-4441/16/2/351
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