This study attempts to analyse the spatial and temporal distributions of biomass burning and concurrent carbon monoxide mixing ratios across the Indian region over a period of two years (2016-17). We leverage data from the Moderate Resolution Imaging Spectrometer (MODIS) instruments -Aqua and Terra- to study the variation and distribution of fire counts over the study region. Carbon Monoxide (CO) mixing ratios at 925 hPa are charted using data from the Atmospheric Infrared Sounder (AIRS). The study region is further divided into four sub-regions (North, Centre, South, and North-East), and the variations in biomass burning activity are studied. Additionally, comparisons between MODIS Aqua and Terra fire counts were made, revealing that Aqua recorded more observations as opposed to Terra. We analyse fire counts and CO mixing ratios over two different temporal resolutions: monthly and seasonal, and attempt to study the relationship between the two. Analysis revealed that both biomass burning activity and CO mixing ratios follow a seasonal cycle, peaking during March-April. A qualitative investigation suggested a strong positive correlation between biomass burning and CO mixing ratios over a large part of the year.
Speaker is summer project student (BS 2 yr) selected through Indian Academy of Science, Bangaluru