<div dir="ltr">Dear Colleagues,<div><br></div><div>Please consider submitting an abstract to our session on "Chemical transport processes near the mesopause: towards reconciling models with observations" at the 2016 AGU Fall Meeting, 12-16 December 2016. </div><div><br></div><div>The deadline for all submissions is Wednesday, 3 August 23:59 EDT.</div><div><br>SA007. Chemical transport processes near the mesopause: towards reconciling models with observations <br><br>Session ID: 12812 <br>Section/Focus Group: SPA-Aeronomy<br><br>This session will address all chemical transport phenomena occurring within the Earth’s mesopause region and how they are affected by, and also affect, the state of the atmosphere above and below. Specifically, it will focus on ongoing efforts to reconcile differences between model predictions and observations that critically depend on transport in this region. Relevant topics include but are not limited to the following: the understanding of observed CO and CO2 trends, the transport of thermospheric NO into the mesosphere, errors in the representation of transport that contribute to the ozone secondary maximum model deficit, the lifetime of meteoritic metals near the mesopause, water vapor redistribution by polar mesospheric clouds, airglow response to stratospheric sudden warmings and observational constraints on eddy diffusion. Contributions reporting the combination of model simulations and observations, both from the ground and space-based are encouraged.<br><br>Diego Janches, GSFC/NASA</div><div>Dan Marsh, NCAR<br><br>--<br>Atmospheric Chemistry Observations and Modeling<br>National Center for Atmospheric Research, Boulder, Colorado 80307-3000<br>phone: +1 303 497-1160 fax: +1 303 497-1400 email: <a href="mailto:marsh@ucar.edu">marsh@ucar.edu</a>
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