Aerosols in the tropical and subtropical UT/LS: in-situ measurements of submicron particle abundance and volatility

S. Borrmann, D. Kunkel, R. Weigel, A. Minikin, T. Deshler, J. C. Wilson, J. Curtius, G. N. Shur, G. V. Belyaev, K. S. Law, F. Cairo
2009 Atmospheric Chemistry and Physics Discussions  
Processes occurring in the tropical upper troposphere and lower stratosphere (UT/LS) are of importance for the global climate, for the stratospheric dynamics and air chemistry, and they influence the global distribution of water vapour, trace gases and aerosols. The mechanisms underlying cloud formation and variability in the UT/LS 5 are of scientific concern as these still are not adequately described and quantified by numerical models. Part of the reasons for this is the scarcity of detailed
more » ... arcity of detailed in-situ measurements in particular from the Tropical Transition Layer (TTL) within the UT/LS. In this contribution we provide measurements of particle number densities and the amounts of non-volatile particles in the submicron size range present in the UT/LS over 10
doi:10.5194/acpd-9-24587-2009 fatcat:ptjhumkskfakvn2m6zbbwbq2o4