Community:Email 11jul13

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from j.m.c.plane at on 11 July 2013 (sent 12 July).

SA011. Impacts of Cosmic Dust in Planetary Atmospheres

Section: SPA-Aeronomy Co-sponsors: Atmospheric Sciences, Planetary Sciences. SWIRLs: Dust and Aerosols

Abstract submission deadline: 6th August 2013.

Cosmic dust has a range of impacts on planetary atmospheres. For example, the ablation of dust from comets and asteroids is the source of the layers of metal atoms and ions in the earth’s upper atmosphere, and meteoric smoke particles which probably act as ice nuclei for noctilucent and polar stratospheric clouds. The deposition of cosmic Fe in the oceans may also induce a climate feedback. The impacts of cosmic dust in the atmospheres of Mars, Venus and Titan have also now been observed. This session is designed to bring together observers, laboratory experimentalists and modelers working on all aspects of cosmic dust in planetary atmospheres. A particular focus will be the enormous range in estimates of the amount of cosmic dust entering the earth’s atmosphere, which vary from 2 to over 300 tonnes per day.

Convenors: John Plane (University of Leeds), Diego Janches (NASA Goddard), Paul Withers (Boston University)

Professor John Plane

School of Chemistry

University of Leeds

Leeds LS2 9JT


Tel. (44) 113 3438044

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