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1 – 10 of 862Yuanzhuo Zhu, Zhihua Zhang and M. James C. Crabbe
Climatic extreme events are predicted to occur more frequently and intensely and will significantly threat the living of residents in arid and semi-arid regions. Therefore, this…
Abstract
Purpose
Climatic extreme events are predicted to occur more frequently and intensely and will significantly threat the living of residents in arid and semi-arid regions. Therefore, this study aims to assess climatic extremes’ response to the emerging climate change mitigation strategy using a marine cloud brightening (MCB) scheme.
Design/methodology/approach
Based on Hadley Centre Global Environmental Model version 2-Earth System model simulations of a MCB scheme, this study used six climatic extreme indices [i.e. the hottest days (TXx), the coolest nights (TNn), the warm spell duration (WSDI), the cold spell duration (CSDI), the consecutive dry days (CDD) and wettest consecutive five days (RX5day)] to analyze spatiotemporal evolution of climate extreme events in the arid Sahara-Sahel-Arabian Peninsula Zone with and without MCB implementation.
Findings
Compared with a Representative Concentration Pathways 4.5 scenario, from 2030 to 2059, implementation of MCB is predicted to decrease the mean annual TXx and TNn indices by 0.4–1.7 and 0.3–2.1°C, respectively, for most of the Sahara-Sahel-Arabian Peninsula zone. It would also shorten the mean annual WSDI index by 118–183 days and the mean annual CSDI index by only 1–3 days, especially in the southern Sahara-Sahel-Arabian Peninsula zone. In terms of extreme precipitation, MCB could also decrease the mean annual CDD index by 5–25 days in the whole Sahara and Sahel belt and increase the mean annual RX5day index by approximately 10 mm in the east part of the Sahel belt during 2030–2059.
Originality/value
The results provide the first insights into the impacts of MCB on extreme climate in the arid Sahara-Sahel-Arabian Peninsula zone.
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France's Sahel policy.
Details
DOI: 10.1108/OXAN-DB237961
ISSN: 2633-304X
Keywords
Geographic
Topical
In December, donors also promised some 2.4 billion euros to fund the G5 Sahel's economic 'Priority Investment Programme' (PIP).
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DOI: 10.1108/OXAN-DB242098
ISSN: 2633-304X
Keywords
Geographic
Topical
Although France officially highlights the multilateral, multidimensional aspects of its operations in the Sahel, in practice the emphasis is on 'kinetic' operations and body…
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DOI: 10.1108/OXAN-DB257452
ISSN: 2633-304X
Keywords
Geographic
Topical
The event, held in the French town of Pau, highlighted the six leaders’ alarm over jihadist violence in the Sahel, particularly recent large-scale attacks by the Islamic State in…
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DOI: 10.1108/OXAN-DB250028
ISSN: 2633-304X
Keywords
Geographic
Topical
There were suggestions in February that France might reduce the size of its military commitment in the run-up to a Sahel summit in the Chadian capital N’Djamena. However, at the…
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DOI: 10.1108/OXAN-DB260716
ISSN: 2633-304X
Keywords
Geographic
Topical
Smuggling in the Sahel.
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DOI: 10.1108/OXAN-DB250323
ISSN: 2633-304X
Keywords
Geographic
Topical
The militancy phenomenon.
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DOI: 10.1108/OXAN-DB218319
ISSN: 2633-304X
Keywords
Geographic
Topical
The conference raised approximately USD1bn for 2020, and USD725mn for 2021. This met the organisers’ target for the conference itself, but fell short of the USD2.4bn the UN says…
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DOI: 10.1108/OXAN-DB257968
ISSN: 2633-304X
Keywords
Geographic
Topical
Tebboune argues that Mali's money would be better spent on economic development and initiatives to integrate northern Malians better into state institutions. Algeria is concerned…