Capturing convection essential for projections of climate change in African dust emission
Capturing convection essential for projections of climate change in African dust emission
复制标题
捕获对流对于预测非洲沙尘排放中的气候变化至关重要
DOI:
10.1038/s41612-021-00201-x
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发表时间:
2021
影响因子:
9
通讯作者:
Garcia-Carreras L
中科院分区:
文献类型:
--
作者:
Garcia-Carreras L
The summertime Sahara and Sahel are the world’s largest source of airborne mineral dust. Cold-pool outflows from moist convection (‘haboobs’) are a dominant source of summertime uplift but are essentially missing in global models, raising major questions on the reliability of climate projections of dust and dust impacts. Here we use convection-permitting simulations of pan-African climate change, which explicitly capture haboobs, to investigate whether this key limitation of global models affects projections. We show that explicit convection is key to capturing the observed summertime maximum of dust-generating winds, which is missed with parameterised convection. Despite this, future climate changes in dust-generating winds are more sensitive to the effects of explicit convection on the wider meteorology than they are to the haboobs themselves, with model differences in the change in dust-generating winds reaching 60% of current values. The results therefore show the importance of improving convection in climate models for dust projections.
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DOI:
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发表时间:
2010
期刊:
影响因子:
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作者:
Thierry Lebel;Douglas J. Parker;C. Flamant;B. Bourlès;B. Marticorena;Eric Mougin;C. Peugeot;A. Diedhiou;J. Haywood;J. Ngamini;Jan Polcher;J. Redelsperger;C. Thorncroft
通讯作者:
C. Thorncroft
影响因子:
3.1
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通讯作者:
Florian Pantillon;P. Knippertz;J. Marsham;C. Birch
DOI:
10.5194/gmd-2016-194-supplement
发表时间:
2017
期刊:
--
影响因子:
--
作者:
D. Walters;I. Boutle;M. Brooks;T. Melvin;R. Stratton;S. Vosper;H. Wells;K. Williams;N. Wood
通讯作者:
D. Walters;I. Boutle;M. Brooks;T. Melvin;R. Stratton;S. Vosper;H. Wells;K. Williams;N. Wood
影响因子:
6.3
作者:
Marsham J
通讯作者:
Marsham J
影响因子:
--
作者:
T. Jickells;P. Boyd;P. Boyd;K. Hunter
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K. Hunter