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2018
- handle: 10670/1.sgnh4m
- hal: hal-01855370
- doi: 10.1016/j.ecolecon.2018.07.006
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info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolecon.2018.07.006
info:eu-repo/semantics/OpenAccess
Mots-clés
Climate impacts on the economy Sahel climate Climate cycles Advanced spectral methods Business cycles Q - Agricultural and Natural Resource Economics • Environmental and Ecological Economics/Q.Q5 - Environmental Economics/Q.Q5.Q54 - Climate • Natural Disasters and Their Management • Global WarmingSujets proches
Science of climate Climate Climate scienceCiter ce document
Vivien Sainte Fare Garnot et al., « Coupled Climate-Economic Modes in the Sahel's Interannual Variability », HAL-SHS : économie et finance, ID : 10.1016/j.ecolecon.2018.07.006
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Résumé
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.