Results of UHF radar observation of the nocturnal low-level jet for wind energy applications |
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| Authors: | Saïdou Madougou Frederique Saïd Bernard Campistron Marie Lothon Cheikh F Kebe |
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| Institution: | 1.Ecole Nationale Supérieure,Université Abdou Moumouni,Niamey,Niger;2.Laboratoire d’Aérologie, CNRS UMR,Université de Toulouse,Toulouse,France;3.Ecole Supérieure Polytechnique,Dakar (Fann),Sénégal |
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| Abstract: | We use two series of eight-month UHF radar observations collected during the dry and wet seasons of AMMA field campaign. The
ultimate goal is to do preliminary work to know whether the lowest layers are suitable for wind energy applications. Surface
wind is usually weak in West Africa, but the regular occurrence of a nocturnal low level jet (NLLJ) could provide interesting
conditions for wind energy. This work is two-fold: it first aims at improving our knowledge about the NLLJ in West Africa
regarding its structure and its variability during the year. Then, special attention is paid to the first 200 m agl, to study
the possibility to use the sub-jet wind as a source of energy. A set of enhanced radio-soundings is taken to help to understand
the dynamics and thermodynamics and to find a way to extrapolate the wind at low level, where the UHF radars do not provide
data. |
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