Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)

Extreme climate events often have a significant and direct impact on social, economic, and environmental systems. This study is an attempt to characterize the current trends and future projections of extreme climatic indices in an arid region of Morocco on both an annual and a seasonal scale using 1...

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Autores principales:	Abdessamad Hadri, Mohamed El Mehdi Saidi, Tarik Saouabe, Abdelhafid El Alaoui El Fels
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	arid region extreme precipitation extreme temperature future projection morocco trend Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/e575a5e062b642f8b1b63ac082cc773d
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spelling	oai:doaj.org-article:e575a5e062b642f8b1b63ac082cc773d2021-11-05T18:48:24ZTemporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)2040-22442408-935410.2166/wcc.2020.234https://doaj.org/article/e575a5e062b642f8b1b63ac082cc773d2021-05-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/3/895https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354Extreme climate events often have a significant and direct impact on social, economic, and environmental systems. This study is an attempt to characterize the current trends and future projections of extreme climatic indices in an arid region of Morocco on both an annual and a seasonal scale using 12 precipitation and temperature-based indices. The Mann–Kendall test was used to assess the trends, and the inverse distance weighted interpolation method was employed to analyze the spatial distribution of extreme precipitation indices. The results showed that the most extreme climate indices are spatially distributed with a clear gradient from the mountainous area toward the plains. Furthermore, the analysis indicates nonsignificant downward trends in the number of days with a rainfall amount greater than 10 or 20 mm. However, a significant negative trend in the consecutive dry days was observed at the Iloujdane and Sidi Bouathmane stations. The temperature indices have recorded statistically significant upward trends at all the stations. Finally, based on the RCP4.5 and RCP8.5 scenarios, future climate change simulations show, respectively, annual precipitation decreases of 23 and 34% and temperature increases of 1.9 and 2.8 °C, which could imply substantial losses of cereal yield in the rainfed agriculture. HIGHLIGHTS Use of 12 indices to analyze trends of temperature and precipitation.; Annual and seasonal trends are performed with statistical significance.; Use of five Regional Circulation Models (RCMs) for the future projections and evaluation of RCM simulations.; Analyze the spatial distribution of the extreme precipitation indices and potential associated impacts of future climatic projections.;Abdessamad HadriMohamed El Mehdi SaidiTarik SaouabeAbdelhafid El Alaoui El FelsIWA Publishingarticlearid regionextreme precipitationextreme temperaturefuture projectionmoroccotrendEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 3, Pp 895-915 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	arid region extreme precipitation extreme temperature future projection morocco trend Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	arid region extreme precipitation extreme temperature future projection morocco trend Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Abdessamad Hadri Mohamed El Mehdi Saidi Tarik Saouabe Abdelhafid El Alaoui El Fels Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
description	Extreme climate events often have a significant and direct impact on social, economic, and environmental systems. This study is an attempt to characterize the current trends and future projections of extreme climatic indices in an arid region of Morocco on both an annual and a seasonal scale using 12 precipitation and temperature-based indices. The Mann–Kendall test was used to assess the trends, and the inverse distance weighted interpolation method was employed to analyze the spatial distribution of extreme precipitation indices. The results showed that the most extreme climate indices are spatially distributed with a clear gradient from the mountainous area toward the plains. Furthermore, the analysis indicates nonsignificant downward trends in the number of days with a rainfall amount greater than 10 or 20 mm. However, a significant negative trend in the consecutive dry days was observed at the Iloujdane and Sidi Bouathmane stations. The temperature indices have recorded statistically significant upward trends at all the stations. Finally, based on the RCP4.5 and RCP8.5 scenarios, future climate change simulations show, respectively, annual precipitation decreases of 23 and 34% and temperature increases of 1.9 and 2.8 °C, which could imply substantial losses of cereal yield in the rainfed agriculture. HIGHLIGHTS Use of 12 indices to analyze trends of temperature and precipitation.; Annual and seasonal trends are performed with statistical significance.; Use of five Regional Circulation Models (RCMs) for the future projections and evaluation of RCM simulations.; Analyze the spatial distribution of the extreme precipitation indices and potential associated impacts of future climatic projections.;
format	article
author	Abdessamad Hadri Mohamed El Mehdi Saidi Tarik Saouabe Abdelhafid El Alaoui El Fels
author_facet	Abdessamad Hadri Mohamed El Mehdi Saidi Tarik Saouabe Abdelhafid El Alaoui El Fels
author_sort	Abdessamad Hadri
title	Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
title_short	Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
title_full	Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
title_fullStr	Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
title_full_unstemmed	Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)
title_sort	temporal trends in extreme temperature and precipitation events in an arid area: case of chichaoua mejjate region (morocco)
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/e575a5e062b642f8b1b63ac082cc773d
work_keys_str_mv	AT abdessamadhadri temporaltrendsinextremetemperatureandprecipitationeventsinanaridareacaseofchichaouamejjateregionmorocco AT mohamedelmehdisaidi temporaltrendsinextremetemperatureandprecipitationeventsinanaridareacaseofchichaouamejjateregionmorocco AT tariksaouabe temporaltrendsinextremetemperatureandprecipitationeventsinanaridareacaseofchichaouamejjateregionmorocco AT abdelhafidelalaouielfels temporaltrendsinextremetemperatureandprecipitationeventsinanaridareacaseofchichaouamejjateregionmorocco
_version_	1718444135989379072

Temporal trends in extreme temperature and precipitation events in an arid area: case of Chichaoua Mejjate region (Morocco)

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