New studies on scattering properties of four kinds of soot
M. Francis*,1, J. - B. Renard1, E. Hadamcik2, B. Couté1, B. Gaubicher1 and M. Jeannot1
- 1 L Laboratoire de Physique et Chimie de l'Environnement et de l'Espace / Université d'Orléans, 3A avenue de la recherche scientifique, F-45071 Orléans cedex 2, France.
- 2 UMPC Univ. Paris 06, LATMOS-IPSL, BP3, F-91371 Verrières le Buisson cedex, France.
New polarization curves as a function of the scattering angle are studied with PROGRA2 instruments (Propriétés Optiques des Grains Astronomiques et Atmosphériques) for 4 different kinds of soot, levitating in a cloud and deposited on a surface. The smallest agglomerates of few μm produce higher polarization values than the full set of agglomerates. The small agglomerates and the packed particles on a surface have the higher polarization. These results need more studies. These curves will be used for detection of soot in the stratosphere by remote sensing measurements.
- * Corresponding author