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uk; simon.osborne@ metoffice.gov.uk) P. Chazette and M ,
(chou@lisa. univ-paris12.fr; desboeufs@lisa.univ-paris12.fr; formenti@lisa.univ-paris12. fr; marticorena@lisa.univ-paris12.fr) S. Christopher, 320 Sparkman Drive, Hunstville, AL 35805-1912, USA. (sundar@nsstc.uah.edu) H. Coe and G. Capes, School of Earth, Atmospheric and Environmental Sciences ,
Laboratoire d'Optique Atmosphérique, p.59655 ,
(e.j.highwood@reading.ac.uk) M. Mallet, Laboratoire d'Aerologie, ) G. Myhre, Center for International Climate and Environmental Research, P.O. Box 1129 ,