HR: 14:40h
AN: A13H-04    [Abstracts]
TI: Effects of Plume-Rise Parameterization On The Simulation Of Boreal Fire
AU: * Guan, H
EM: guan@clio.arc.nasa.gov
AF: BAERI, 560 3rd St. West, Sonoma, CA 95476, United States
AU: Chatfield, R
EM: chatfield@clio.arc.nasa.gov
AF: NASA AMES Research Center, Moffett Field, Mountain view, CA 94035, United States
AU: Bergstrom, R
EM: bergstrom@baeri.org
AF: BAERI, 560 3rd St. West, Sonoma, CA 95476, United States
AU: Freitas, S R
EM: sfreitas@cptec.inpe.br
AF: Center for Weather Forecasting and Climate Studies, INPE, Cachoeira Paulista, SP 12630- 000, Brazil
AU: Longo, K M
EM: longo@cptec.inpe.br
AF: Center for Weather Forecasting and Climate Studies, INPE, Cachoeira Paulista, SP 12630- 000, Brazil
AB: Over the last 30 years, global boreal forests have experienced significantly warming and drying, leading to both increased frequency and intensity of the boreal fire regime. These intense boreal fires are very energetic and may inject a large amount of carbon monoxide (CO) and fire-associated aerosols into the upper troposphere and stratosphere through a pyro-convection process. Accurate simulation of lofting height of these fires is challenging. In this study, we evaluated a parameterization of plume lofting by dry and moist convection in the NCAR Community Atmospheric model (CAM) driven by NCEP meteorological data. This allows studies of individual fire- weather events. Our simulations are focused on the Alaska-Yukon boreal fires observed by MOPITT (Measurements of Pollution in The Troposphere) and AIRS (Atmospheric InfraRed Sounder) satellites during the summer of 2004. We will compare the simulated CO with AIRS and MOPITT measured CO. We will also present the effectiveness of a plume-rise parameterization, developed originally for subtropical application, in the simulation of plume height.
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting