Using high spatial resolution data for the identification of paddy fileds, larval potential habitats of Anopheles, vector of Malaria in the central highland of Madegascar

The history of Malaria in Madagascar is marked by the epidemic episodes on the Highland with a population deprived of premunition and vulnerable due to the character of unsteady transmission. The epidemic recrudescence during the end of the Years eighty was owed to the Anopheles Funestus, the surveillance of mosquito vector habitat is indispensable to control malaria transmission. This paper shows the interest of Remote sensing, which uses high spatial resolution data, to identify the area at risk of malaria epidemic on the Central Highlands. Spot 4XI image enhancement and supervised classification with the maximum likelihood have been made outside to identify paddy fields. ERS2/Envisat images are used to complete the results in order to raise a map of mosquito larval habitats. The objective is to cut up results gotten of paddy fields zones determination with factors that intervene in the transmission of malaria, in order to map regions at risk that requires insecticide indoor house spraying while using multicriteria evaluation methods.