Versione classicaVersione mobile

Rural societies in the face of climatic and environmental changes in West Africa

 | 
Benjamin Sultan
, 
Richard Lalou
, 
Mouftaou Amadou Sanni
, 
et al.

Part I. Recent and future climate change in West Africa. Obvious features, uncertainties and perceptions

Chapter 2. The return of a wet period in the Sahel?

Observations and prospects

Théo Vischel, Thierry Lebel, Gérémy Panthou, Guillaume Quantin, Aurélien Rossi e Maxime Martinet

I formati HTML, PDF, ePub sono accessibili agli utenti delle biblioteche e degli istituti che hanno richiesto la licenza OpenEdition Freemium per Books. Ad ogni modo, l'opera potrà essere acquistata online tramite le nostre librerie affiliate, nei formati PDF e ePub. Se la versione a stampa è disponibile sono proposti dei link verso le librerie in questa stessa pagina.

Estratto del testo

Introduction

The question of the evolution of precipitations is of prime importance in the Sahel, a region where rainfall is at the heart of societal concerns. A deficit affects the availability of water resources and the yields of farming that is still mainly rainfed. Excess water can cause extreme hydrologic events that are harmful for populations increasingly exposed to flood risks. Precipitations are in fact the signature of the atmospheric and environmental processes that regulate the West African monsoon, which is in turn a component of the global climate system. The evolution of precipitations is thus at the hinge-point between climate variability and its impact on populations. Describing it is essential for learning about water-related risks and anticipating their future in a changing global climate.

Following the strong involvement of the international scientific community, especially at the end of the 1970s, major progress has been made in the understanding of the mechanisms...

Autori

Hydro-climatologist, IRD, Université Grenoble Alpes, LTHE (Laboratoire d’étude des transferts en hydrologie et environnement), UMR 5564 IRD/CNRS/UJF/G-INP, Grenoble, France

Hydro-climatologist, IRD, université Grenoble Alpes, LTHE (Laboratoire d’étude des transferts en hydrologie et environnement), UMR 5564 IRD/CNRS/UJF/G-INP, Grenoble, France

Hydro-climatologist, IRD, Université Grenoble Alpes, LTHE (Laboratoire d’étude des transferts en hydrologie et environnement), UMR 5564 IRD/CNRS/UJF/G-INP, Grenoble, France

Hydro-climatologist, IRD, Université Grenoble Alpes, LTHE (Laboratoire d’étude des transferts en hydrologie et environnement), UMR 5564 IRD/CNRS/UJF/G-INP, Grenoble, France

© IRD Éditions, 2017

Condizioni di utilizzo http://www.openedition.org/6540

Cerca su OpenEdition Search

Sarai reindirizzato su OpenEdition Search