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Biomass burning in Siberia and Kazakhstan as an important source for haze over the Alaskan Arctic in April 2008, Geophys
- Res. Lett
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Space-based observational constraints for 1-D fire smoke plume-rise models
"... [1] We use a plume height climatology derived from space-based Multiangle Imaging Spectroradiometer (MISR) observations to evaluate the performance of a widely used plume-rise model. We initialize the model with assimilated meteorological fields from the NASA Goddard Earth Observing System and estim ..."
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[1] We use a plume height climatology derived from space-based Multiangle Imaging Spectroradiometer (MISR) observations to evaluate the performance of a widely used plume-rise model. We initialize the model with assimilated meteorological fields from the NASA Goddard Earth Observing System and estimated fuel moisture content at the location and time of the MISR measurements. Fire properties that drive the plume-rise model are difficult to constrain, and we test the model with four estimates each of active fire area and total heat flux, obtained from Moderate Resolution Imaging Spectroradiometer (MODIS) fire radiative power (FRP) thermal anomalies available for each MISR plume and other empirical data. We demonstrate the degree to which the fire dynamical heat flux (related to active fire area and sensible heat flux) and atmospheric stability structure influence plume rise, although entrainment and possibly other less well constrained factors are also likely to be significant. Using atmospheric stability conditions, MODIS FRP, and MISR plume heights, we find that smoke plumes reaching high altitudes are characterized by higher FRP and weaker atmospheric stability conditions than those at low altitude, which tend to remain confined below the boundary layer, consistent with earlier
© Author(s) 2009. This work is distributed under the Creative Commons Attribution 3.0 License. Atmospheric Chemistry and Physics
, 2009
"... Abstract. We investigate the spatial and temporal distribu-tion of hydrogen cyanide (HCN) in the upper troposphere through numerical simulations and comparison with obser-vations from a space-based instrument. To perform the sim-ulations, we used the Global Environmental Multiscale Air Quality model ..."
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Abstract. We investigate the spatial and temporal distribu-tion of hydrogen cyanide (HCN) in the upper troposphere through numerical simulations and comparison with obser-vations from a space-based instrument. To perform the sim-ulations, we used the Global Environmental Multiscale Air Quality model (GEM-AQ), which is based on the three-dimensional global multiscale model developed by the Me-teorological Service of Canada for operational weather fore-casting. The model was run for the period 2004–2006 on a 1.5◦×1.5 ◦ global grid with 28 hybrid vertical levels from the surface up to 10 hPa. Objective analysis data from the Cana-dian Meteorological Centre were used to update the meteoro-logical fields every 24 h. Fire emission fluxes of gas species were generated by using year-specific inventories of carbon emissions with 8-day temporal resolution from the Global
NASA
, 2016
"... Space-based observational constraints for 1-D fire smoke plume-rise models ..."
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Space-based observational constraints for 1-D fire smoke plume-rise models
© Author(s) 2010. CC Attribution 3.0 License. Atmospheric Chemistry
"... www.atmos-chem-phys.net/10/9631/2010/ doi:10.5194/acp-10-9631-2010 ..."
