Search results for "DISPERSION MODEL FLEXPART"

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In situ observations of new particle formation in the tropical upper troposphere: the role of clouds and the nucleation mechanism

2011

New particle formation (NPF), which generates nucleation mode aerosol, was observed in the tropical Upper Troposphere (UT) and Tropical Tropopause Layer (TTL) by in situ airborne measurements over South America (January–March 2005), Australia (November–December 2005), West Africa (August 2006) and Central America (2004–2007). Particularly intense NPF was found at the bottom of the TTL. Measurements with a set of condensation particle counters (CPCs) with different <i>d</i><sub>p50</sub> (50% lower size detection efficiency diameter or "cut-off diameter") were conducted on board the M-55 <i>Geophysica</i> in the altitude range of 12.0–20.5 km and on board …

Atmospheric Science010504 meteorology & atmospheric sciencesDISPERSION MODEL FLEXPARTaerosolnucleationNucleationclouds010502 geochemistry & geophysicsAtmospheric sciences01 natural sciencestropicsTropospherelcsh:Chemistrynew particle formationddc:550Cloud condensation nucleiLife ScienceStratosphere0105 earth and related environmental sciencesGeophysica[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph][SDU.OCEAN]Sciences of the Universe [physics]/Ocean AtmosphereIce cloudAtmosphärische SpurenstoffeFalconlcsh:QC1-999AerosolJAQUEOUS SULFURIC-ACIDlcsh:QD1-99913. Climate actionClimatologyupper troposphereEnvironmental scienceOutflowAEROSOL NUCLEATIONLOWER STRATOSPHERETropopauselcsh:PhysicsGALACTIC COSMIC-RAYS
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