Prawira Yudha Kombara, Waluyo Eko Cahyono, Wiwiek Setyawati, Hana Listi Fitriana, Emmanuel Adetya, Alvin Pratama
In 2019, there was a strong positive Indian Ocean Dipole (IOD) phenomenon and forest and land fire in several areas of Sumatra. The positive IOD phenomenon makes the Sumatra region drier, and the rainfall decreases from normal conditions so that the forest and land fires that occur are getting worse. The environmental impacts, especially the pollution impact of the forest and land fires and the 2019 positive IOD in Sumatra, have been studied in this study by analyzing the spatial pattern of the aerosol optical depth (AOD), particulate matter (PM)2.5, and carbon monoxide (CO) parameters. Spatial analysis was carried out from August to November 2019. Then, the general results obtained that the maximum concentrations for the parameters AOD, PM2.5, and CO occurred in September 2019. The three parameters spread to several provinces in Sumatra following the wind direction. Several areas affected by the 2019 forest and land fires are the provinces of Riau, Jambi, and South Sumatra. In October, the South Sumatra region became the area with the highest concentrations of PM2.5 and CO compared to other regions. This indicates that the forest and land fires incident was centered in South Sumatra Province in October 2019. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Research Center for Climate and Atmosphere, National Research and Innovation Agency, Bandung, Indonesia; Research Center for Remote Sensing, National Research and Innovation Agency, Jakarta, Indonesia; Department of Atmospheric and Planetary Science, Sumatera Institute of Technology, Lampung, Indonesia