Using the super-parameterization
concept to include the sub-grid plume-rise of vegetation fires in
low resolution atmospheric chemistry-transport models
Saulo Freitas, Centro de
Previsão de Temp e Estudos Climáticos/INPE, sfreitas@cptec.inpe.br
(Presenting) Karla Longo, Centro de
Previsão de Tempo e Estudos Climáticos/INPE, longo@cptec.inpe.br
We adopt the super-parameterization concept
to include the vertical transport of hot gases and particles emitted
from biomass burning in low resolution atmospheric-chemistry
transport models. This sub-grid transport mechanism is simulated
imbibing a 1D cloud resolving model with appropriate lower boundary
condition in each column of the 3D host model. Through assimilation
of remote sensing fire product, we recognize which column has fires,
using a land use dataset appropriate fire properties are selected.
The host model provides the environment condition and, finally, the
plume rise is explicitly simulated. The final height of the plume is
then used at the source emission field of the host model, releasing
material emitted at flaming phase at this height. We compare model
results with 500 mb AIRS carbon monoxide data for September 2002 and
show the huge impact that this mechanism has at the model
performance.