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SEMINAR: MPO Special Seminar:Dr. Kevin Bowman,Tomorrow,at 12:00 p.m, MSC 343

From: Sandrine Apelbaum <sapelbaum@rsmas.miami.edu>
Subject: SEMINAR: MPO Special Seminar:Dr. Kevin Bowman,Tomorrow,at 12:00 p.m, MSC 343
Date: Thu, 31 Mar 2011 12:16:25 -0400
MPO Special Seminar
 
Dr. Kevin Bowman
NASA Jet propulsion Laboratory


"Observational constraints on climate forcing: perspectives from satellites, models, and assimilation"
 
 
Room: MSC 343
Date: Friday, April 1st, at 12:00 p.m.


Abstract: Atmospheric composition is the primary driver of climate and environmental change from human activity. Well-mixed greenhouse gases such as carbon dioxide are linked to short-lived climate forcers such as ozone through common combustion sources, chemistry, and eco-system processes.  Consequently, policy studies are beginning to consider both air quality and climate impacts within an Earth System context to develop global mitigation strategies.    Satellite observations from instruments such as the NASA Tropospheric Emission Spectrometer play an important role in understanding the processes controlling atmospheric composition as well as their attribution to specific sources.  In conjunction with  atmospheric models and advanced assimilation techniques, these data are providing constraints on how changes in composition force both climate and air quality, setting the stage for effective mitigation strategies. We will discuss research in 4D-variational CO2 flux estimation constrained by satellite observations with a view towards more comprehensive carbon cycle assimilation  as initiated by the NASA Carbon Monitoring Flux Pilot Project.  Using similar techniques, we will point towards the attribution of ozone radiative forcing through satellite-derived instantaneous radiative kernels (IRK).  These IRK are also used to evaluate ensemble chemistry-climate model ozone predictions and their radiative forcing,  providing a calibration point between historic change and future response of climate.


Sandrine Apelbaum
Meteorology and Physical Oceanography 
Rosenstiel School of Marine and Atmospheric Science
University of Miami
4600 Rickenbacker Causeway
Miami, FL 33149-1098
Tel     (305) 421-4057
Fax     (305) 421-4696