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IMPACTS OF BIOMASS BURNING OVER SOUTHEAST ASIA

Explore the simulation of forest fire impacts in Southeast Asia, using data from the 1997-1998 ENSO event and satellite imagery. Analyze changes in shortwave radiation, cloud cover, and air temperature to understand the effects of biomass burning in the region.

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IMPACTS OF BIOMASS BURNING OVER SOUTHEAST ASIA

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  1. IMPACTS OF BIOMASS BURNING OVER SOUTHEAST ASIA Raquel Fransisco (Phillipines) Edna Juanillo (Phillipines) Dewi Kirono (Indonesia) (Fabien Solmon)

  2. AREA OF STUDY

  3. RATIONALES Archipelago and montainous area Forest fire occurs quite often In 1997-1998 ENSO event: 12 million hectares were burned causing more than US$ 9 billion economic loss

  4. (NASA)

  5. OBJECTIVE To simulate impacts of forest fire burning over the region

  6. CONTROL RUN • 80 x 101 • 55 km horisontal & 10 minute resolution • OISST & NNRP2 data set • LBC = relaxation • PBL = Holtslag • Fritsch & Chappell Convective closure • SUBEX large scale precipitation scheme • From 15 August 1997 to 1 October 1997

  7. BIOMAS-BURNING RUN • Constructed a data base of forest fireobtained from satellite images classify it as:No burning (0), Small burning (1), Medium burning (2), Heavy burning (3)

  8. BIOMAS-BURNING RUN • Constructed a data base of forest fireobtained from satellite images classify it as:No burning (0), Small burning (1), Medium burning (2), Heavy burning (3) The satellite images are of August 17, 22, 24, 25 and 28 1997. • Input the coded data of forest fire into the RegCM • Run the tracer model with a change in optical property (absorbing aerosol – black carbon/soot) This is coded especially for this particular project

  9. RESULTS • Animation of the forest fire • Shortwave radiation • Cloud • Air temperature • Average temperature • Average shortwave

  10. Control-Run Biomas-Run Shortwave radiation (W/M2)

  11. Control-Run Biomas-Run Shortwave radiation and Cloud Fraction

  12. Control-Run Biomas-Run AIR TEMPERATURE

  13. Control-Run Biomas-Run Shortwave radiation (W/m2)

  14. Control-Run Biomas-Run

  15. CONCLUSION The model can capture: • the transport and removal process • decrease of shortwave radiation reaching the surface ; cooling of surface • tropospheric warming effect of absorbing aerosol (BC) • influence on convection ??

  16. THANK YOU AND CIAO…..!

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