[Grad-postdoc-assn] ASP Seminar by Dr Phil Rasch (PNNL) - Problems and Prospects for improved representation of aerosol impacts in climate models

[Hyeyum Shin]

Hi all,

Dr Phil Rasch from Pacific Northwest National Laboratory will be presenting us "Problems and Prospects for improved representation of aerosol impacts in climate models" on next Thursday, 13 February, "1:30 pm" in the "Mesa Lab Main Seminar Room".
At 12:00 pm, "before" the seminar, there will be a lunch with Dr. Phil Rasch in the ML cafeteria. Feel free to join!

Here are detailed information about his seminar. Hope to see all of you there!


Dr Phil Rasch, Chief Scientist for Climate Science, Pacific Northwest National Laboratory
Time: 1:30pm, Thursday, 13 Feb 2014
Location: ML - Main Seminar room
Title: Problems and Prospects for improved representation of aerosol impacts in climate models

Abstract:
Aerosols are ubiquitous in the atmosphere, and play many roles in the
climate system, scattering and absorbing light, acting as nuclei for
liquid and ice particle formation (important to clouds properties), acting
as sites for photochemistry and as delivery agents for nutrients to
biological systems. A substantial fraction of aerosols are of
anthropogenic origin. Aerosols have been identified variously as: 1) one
of the most uncertain factors in historical climate change, increasing
uncertainty about Earth¹s sensitivity to greenhouse gas concentration
changes, and 2) as "uncertain then, irrelevant now".  In this talk I will
review some of the reasons why aerosol impacts are so difficult to
characterize, some recent attempts to improve their treatment in climate
models, discuss a few studies my group has been involved in recently, and
close contending that aerosols are "uncertain then, but not irrelevant
now".



The Seminar Committee
(Fang Fang, Rajesh Kumar, Yumin Moon, Jorge Salazar, and Hyeyum Shin)

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