Presenter(s):
Dr. Shobha Kondragunta, Research Physical Scientist, NOAA NESDIS Center for Satellite Applications and Research (STAR)
Description:
Wildfires emit smoke into the atmosphere, impacting the environment and leading to detrimental impacts on human health and economy. The estimation of spatially and temporally resolved emissions from biomass burning provides critical information to understand the role of fires as a source sector for pollution. The use of satellite active fire products is an effective pathway to investigate wildfire emissions around the world. In this study, the Global Biomass Burning Emissions - eXtended is employed to estimate long-term temporal variation and geographic distribution of smoke emissions using satellite observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Visible Infrared Imaging Radiometer Suite (VIIRS). This study has identified that crop emissions are declining globally except in eight countries (e.g., India) due to a shift from burning crop residue to its recycling in developing countries. Similarly, in parts of the world such as in the western United States, there is a rise in the intensity, size, and duration of wildfires leading to a rise in smoke related pollution. Effective wildfire prevention and management could be beneficial to rapidly reduce smoke emissions from biomass burning. In this seminar presentation, I will present our work related to the generation of twenty-three years of fire emissions data record from MODIS and 13 years of fire emissions data record from VIIRS including the validation of emissions estimates. Findings from the analysis of this data record will also be presented with a focus on air quality impacts.
Access:
Google Meet joining info
Video call link: https://meet.google.com/yta-gcea-qzj
Or dial: (US) +1 646-653-4184 PIN: 468 785 438#