Weekly Report for the Week of October 13, 2008
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GSFC Laboratory for Atmospheres, Code 613
Significant planned events
Si-Chee Tsay (613.2) participating in the final phase of the International AMY Aerosol-Cloud inter-nation observations as part of the DoE/ARM (Atmospheric Radiation Measurements) studies on Asian dust and mega-city aerosols long-range transport, Beijing, China, October 8-November 3, 2008.
External interactions (HQ, universities, other Gov't organizations, etc.)
Scott Braun (613.1) presented the talk entitled "Improving our understanding of Atlantic Hurricanes through knowledge of the Saharan Air Layer: Hope or Hype?" at the Dept. of Atmospheric and Oceanic Science at the University of Maryland, College Park, on Oct 9 as part of their weekly seminar series.
A workshop was held on October 3 at SSAI in Lanham to address differences between satellite retrievals of bromine monoxide (BrO) and aircraft and ground-based measurements made during this summer's ARCTAS field campaign. Attendees included Daniel Jacobs (Harvard) and Ros Salawitch (University of Maryland, College Park), and Yuhang Wang (Georgia Tech). Code 613.3 attendees included James Gleason, P.K. Bhartia, and Joanna Joiner.
Accepted papers
The potential for improved cloud optical depth retrievals from the multiple directions of MISR, Evans, K. F.; Marshak, A.; Varnai, T., J. Atmos. Sci., Vol. 65, pp. 3179-3196.
“HIRDLS observations and simulation of a lower stratospheric intrusion of tropical air to high latitudes,” by M. A. Olsen, A. R. Douglass, P. A. Newman, J. C. Gille, B. Nardi, V. A. Yudin, D. E. Kinnison, and R. Khosravi, Geophys. Res. Lett., doi:10.1029/2008GL035514.
Noteworthy talks/presentations
Eric Wilcox (613.2) will speak at the California Institute of Technology (10/7), NASA Jet Propulsion Laboratory (10/8), and at UCLA (10/10) on “Satellite observations of deep cumulus convection and GCM simulations of extreme rain events”.
Meetings/Workshops/Seminars
The 7th AeroCom (Aerosol Comparisons between observations and models) meeting was held last week (10/8-10/10) in Reykjavik, Iceland. Mian Chin (613.3), Thomas Diehl (613.3/GEST), and Cynthia Randles (613.3/ORAU), and Arlindo da Silva from Code 610.3 attended the meeting. The goal of the 7th AeroCom meeting includes presenting progress with respect to aerosol modeling and data analysis, reviewing status of model-data comparisons, and discussing joint analysis of aerosol model experiments in support of the IPCC Fifth Assessment, the Atmospheric Chemistry and Climate (AC&C) initiative, and the Hemispheric Transport of Atmospheric Pollution (HTAP) project.
The Goddard Chemistry Aerosol Radiation and Transport (GOCART) model and the Global Modeling Initiative (GMI) models are participating/leading the AeroCom, AC&C, and HTAP activities. During AeroCom meeting, Mian Chin showed the new development of long-term seasonal variation of dust sources that is based on the satellite NDVI and soil data. Thomas Diehl talked the long-term emissions of aerosol and precursor gases from anthropogenic and natural sources that he had developed/compiled and the GOCART model simulated long-term trends of atmospheric aerosols. Cynthia Randles presented the GEOS-5/GOCART simulations of aerosol climatology. Arlindo da Silva discussed the sub-grid variability of clouds and aerosols.
The AeroCom community will conduct several multi-model experiments in the coming year, including the model hindcast of global aerosol variations in the satellite era (1980-present), aerosol direct radiative forcing, aerosol microphysics, organic aerosol, and dust experiments.
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