[Grad-postdoc-assn] Postdoc Seminars Tomorrow
Paula Fisher
paulad at ucar.edu
Tue Jan 30 15:42:00 MST 2007
Hi All,
Please note that there are two postdocs giving seminars tomorrow. I
hope that some of you will be able to attend and offer your support.
Paula
1. Jian Lu
Expansion of the Hadley cell under global warming
http://www.cdc.noaa.gov/cdc/seminars/seminars.html
2. Yue Deng
> Speaker: Yue Deng, HAO
>
> Time: January 31, 2007, 1:30 pm, CG1-2126
http://www.ucar.edu/org/bouldermap.shtml
>
> Title: Examining the High-Latitude Thermosphere and Ionosphere Using
a Global Model
>
> Abstract:
>
> The thermosphere and ionosphere are two overlapping regions of the
atmosphere that are tightly coupled in many ways, including chemistry,
momentum transference, and heating due to velocity differences. To
examine the coupling between thermosphere and ionosphere, the new
developed 3-Dimensional Global Ionosphere-Thermosphere Model (GITM) is
used to explore responses to magnetospheric and solar forcing in the
coupled thermosphere-ionosphere system. First, the impact of solar
activity and geomagnetic activity on the neutral wind has been
thoroughly quantified. Secondly, we have examined the effect of the
vertical ion convection on the electron density at high-latitudes, which
has been ignored in most situations. Finally, the
thermosphere-ionosphere coupling is studied by quantifying the effects
of oscillating electric fields on the Joule heating, the primary driver
of global ionospheric storms.
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