Study area and in situ data
The study site lies in the north-western part of Burkina Faso in the Kossi district to Mali’s border.
In the centre of this area, the city of Nouna is located at 12° 44‘ N ; 3° 51‘ W. Approximately 20,000 inhabitants live in Nouna town and 50,000 other live in sixty villages around.
Most areas in this region lie on an altitude of 150-250m above the sea level and belong to a Precambrian peneplain.
Sandy soils and less dense vegetation characterize the northern zone, facing the Sahel. In effect, the south receives higher rainfall, and presence of clay and silt promotes surface water. Study area is located in the Sudano-Sahelian zone where malaria is endemic but dependent on rainfall.
Mean precipitation for Nouna during the last 10 years has been 817 mm per year. The monthly maxima during the rainy season between May and September can reach up to 350 mm.
The yearly average temperature of Nouna is 27.8°C. From March to May, temperatures are higher and can exceed 45°C during the day, while rainfall and hence vegetation are minimal.
Majority of the population depends to agriculture and lives in extreme poverty : 27.2% of the population lives below the poverty line fixed to $1 a day (World Bank, 2008)..
Nouna area northwest Burkina. Villages, roads hydrography and population density. Based on geographic and demographic system of the- CRSN, Nouna, 2009
The Nouna study area is located in Northwest of Burkina Faso to Mali’s border. Nouna is a department located in the province of Kossi (7324 km 2). Approximately 20,000 inhabitants live in Nouna town. The 50,000 other inhabitants of the department live in sixty villages
Altitudes of area is ranging between 150 and 200 meters. The northern zone, facing the Sahel, is characterized by sandy soils and a less dense vegetation as the south. In effect, the south receives higher rainfall, and (...)
A high-resolution satellite image from the SPOT 5 satellite during 2008 was used to generate a land cover classification in the malaria endemic lowland of North-Western Burkina Faso, centred around the Nouna city. A supervised land cover classification was carried out based on 45 training zones obtained during the 2008 ground campaign.
Land cover classes were built and correlated to land cover types known from literature for acting as Anopheles mosquito breeding sites.
Buffers zones of (...)