Coupled Climate-Economic Modes in the Sahel's Interannual Variability

Vivien Sainte Fare Garnot (), Andreas Groth () and Michael Ghil ()
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Vivien Sainte Fare Garnot: ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres, LMD - Laboratoire de Météorologie Dynamique (UMR 8539) - INSU - CNRS - Institut national des sciences de l'Univers - X - École polytechnique - IP Paris - Institut Polytechnique de Paris - ENPC - École nationale des ponts et chaussées - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique - Département des Géosciences - ENS-PSL - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres
Andreas Groth: AOS - Department of Atmospheric and Oceanic Sciences [Los Angeles] - UCLA - University of California [Los Angeles] - UC - University of California
Michael Ghil: ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres, AOS - Department of Atmospheric and Oceanic Sciences [Los Angeles] - UCLA - University of California [Los Angeles] - UC - University of California, LMD - Laboratoire de Météorologie Dynamique (UMR 8539) - INSU - CNRS - Institut national des sciences de l'Univers - X - École polytechnique - IP Paris - Institut Polytechnique de Paris - ENPC - École nationale des ponts et chaussées - SU - Sorbonne Université - CNRS - Centre National de la Recherche Scientifique - Département des Géosciences - ENS-PSL - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres

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Abstract: We study the influence of interannual climate variability on the economy of several countries in the Sahel region. In the agricultural sector, we are able to identify coupled climate-economic modes that are statistically significant on interannual time scales. In particular, precipitation is a key climatic factor for agriculture in this semi-arid region. Locality and diversity characterize the Sahel's climatic and economic system, with the coupled climate-economic patterns exhibiting substantial differences from country to country. Large-scale atmospheric patterns — like the El Niño–Southern Oscillation and its quasi-biennial and quasi-quadrennial oscillatory modes — have quite limited influence on the economies, while more location-specific rainfall patterns play an important role.

Keywords: Climate impacts on the economy; Sahel climate; Climate cycles; Advanced spectral methods; Business cycles (search for similar items in EconPapers)
Date: 2018
New Economics Papers: this item is included in nep-env
Note: View the original document on HAL open archive server: https://hal.science/hal-01855370v1
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Published in Ecological Economics, 2018, 153, pp.111-123. ⟨10.1016/j.ecolecon.2018.07.006⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-01855370

DOI: 10.1016/j.ecolecon.2018.07.006

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