Changing interactions between the land surface and the atmosphere (Google / Springer)


Read at : Google Alerts – desertification

Identification and observation of desertification processes with the aid of measurements from space: Results from the European Field Experiment in Desertification-threatened Areas (EFEDA)

Hans-Jürgen Bolle


The ECHIVAL Field Experiment in Desertification-threatened Areas (EFEDA) addresses the question of desertification from the viewpoint of changing interactions between the land surface and the atmosphere under varying climatic conditions. The basic tool to improve our understandin of these processes are Soil-Vegetation-Atmosphere-Transfer (SVAT) and climate models. In testing techniques for deriving the needed input data from observations from space, EFEDA requires high-precision data sets that can be used to aggregate desertification-related land-surface characteristics into the scale up to the grid width of global climate models (104−105 km2). In this context schemes have been developed to infer from satellite measurements fluxes at the surface. To validate the information inferred from observations in…

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About Dr. B. A. USMAN

I started as a field Veterinary officer with the Borno State Ministry of Agriculture and later joined College of Agric, maiduguri as a lecture & a researcher in the Department of Animal Health & Production. I was appointed the Provost of the College In 2003. 2007 I was appointed Hon. Commissioner & Member Borno State Executive Council and later appointed Permanent Secretary with the Borno State Civil Service in 2009. I was the National Facilitator Animal Health, National Programme For Food Security of the Federal Ministry of Agric & Rural Development, Abuja. I'm currently the Director, Veterinary Medicine & Allied Products (VMAP) NAFDAC, Nigeria. I engaged myself in various aspects of the veterinary profession. I'm a practicing Veterinarian & Strong Advocate of #SDGs most especially #SDGs 1, 2, 4 & 5 I founded Sril Group Ltd.
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