INJECTION HEIGHT OF SMOKE FROM FOREST FIRE IN SUMATRA DURING OCTOBER 2015

• Main Author: Rama Sari AS, Dita
• Format: Final Project
• Language: Indonesia
• Subjects: Geologi, hidrologi & meteorologi
• Online Access: https://digilib.itb.ac.id/gdl/view/33681
• Institution: Institut Teknologi Bandung

Determining the spread of smoke as a consideration in evacuation efforts of smoke from forest fires is important. Running a model simulation of forest fire smoke spread is one way to determine the spread of smoke. This study is going to find out the effective injection height that could be reached by the smoke during October 2015 on Sumatra using HYSPLIT model. The injection height is required as input of the smoke distribution simulation model because it will determine the distribution range of smoke. This study is using hotspot data from MODIS which is considered as the fire source. Sweep parameter experiments are conducted by inputting vary altitudes into forward trajectory modelling with HYSPLIT. The injection height divided into some range, 10-1000 meters, 1050-2000 meters, 2050-3000 meters, 3050-4000 meters, 4050-5000 meters, 5050-6000 meters with 50 meter intervals. The output of HYSPLIT model is compared to MODIS satellite image data to see the similar distribution pattern. Simple image processing method used to compare the similarity in color which is assumed as a fire smoke. In addition, the output also compared to aerosol top height data from CALIPSO. The results show that during forest fire October 2015 period, the majority of effective injection heights reached an altitude of 3000 meters. When these heights inputted into the model, will be obtained distribution similar to the results of observations (MODIS satellite imagery). At this effective injection height, majority of smoke moving to the northwest along the Sumatra Island, to the province of Riau