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MotivationThere is a need to have good long-term ground truth on surface radiative fluxes in regions frequented by dust, to estimate accurately effect of dust outbreaks on satellite inferred quantities. In particular, there is a need to have information in areas that border with deserts and could be affected by draughts. Satellite observations are monitoring desert migration. The data are also useful for testing cloud masking procedures and atmospheric corrections for satellite retrievals of surface parameters, are available from CERES, MODIS, and other new satellites . The Ilorin Observational Station was establish to provide the BSRN and the Earth Observing System (EOS) Validation Community, with high quality, continuous radiation and supplementary meteorological data from this climatically important location. It also serves the local community, by providing research opportunities for graduate students, and local scientists. The Ilorin station is located in the sub-Sahel region, where extreme environmental conditions are found. Therefore, conditions that prevail here are not common at other sites.
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