Study area and in situ data

N’Djamena (12°07′ North, 15°03′ Est), the capital city of Chad is a port on the Chari River, near the confluence with the Logone River. The estimated population was close to 1 million inhabitants in 2009. N’Djamena has a semi-arid climate with a short wet season (June-September, with the heaviest (...)

Dakar (14°40’ North, 17°25’ West), the capital city of Senegal, and its suburbs are located in the Cap-Vert peninsula at the westernmost point of Africa. The estimated population was 1,030,594 inhabitants in 2005, amounting to about 20% of the country’s population. The population density is 12,233 (...)

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