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      Variasi Spasial-Temporal NO2 dan SO2 Menggunakan Sentinel-5 Precursor di Pulau Jawa Bagian Barat Tahun 2019 – 2021

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      Date
      2023
      Author
      Zahra, Ahdini
      Hidayat, Rahmat
      Risdiyanto, Idung
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      Abstract
      Pulau Jawa bagian barat memiliki kepadatan penduduk tertinggi di Indonesia. Aktivitas antropogenik termasuk transportasi dan industri telah meningkatkan polusi udara. Hampir seluruh NO2 dan SO2 dihasilkan dari emisi antropogenik. Distribusi gas atmosfer tersebut dapat dideteksi menggunakan satelit Sentinel-5P. Penelitian ini bertujuan mengkaji korelasi data distribusi gas NO2 dan SO2 dari satelit Sentinel-5P dengan observasi permukaan, serta mengetahui variasi spasial dan temporalnya di Pulau Jawa bagian barat dari tahun 2019 hingga 2021. Hasil menunjukkan bahwa konsentrasi NO2 dan SO2 hasil Sentinel-5P berkorelasi positif dengan hasil observasi permukaan. Konsentrasi spasial NO2 tertinggi terjadi di Jabodetabek dan Kota Cilegon dan konsentrasi spasial SO2 tertinggi di Kota Cilegon. Erupsi Gunung Anak Krakatau pada bulan Januari 2019 menyebabkan konsentrasi SO2 lebih tinggi dibandingkan tahun 2020 dan 2021. Pada saat musim hujan, konsentrasi NO2 dan SO2 menurun. Penurunan konsentrasi NO2 dan SO2 juga dipengaruhi oleh aktivitas kendaraan dan industri yang rendah pada awal pandemi COVID-19 di tahun 2020.
       
      The western part of Java Island has the highest population density in Indonesia. Anthropogenic activities, including transportation and industries, have increased air pollution. NO2 and SO2 are almost produced from anthropogenic emissions. The distribution of atmospheric gases can be detected using the Sentinel-5P satellite. This study examines the correlation of NO2 and SO2 gas distribution data from the Sentinel-5P satellite with surface measurements. It determines their spatial and temporal variations in the western part of Java Island from 2019 to 2021. The results show that the concentrations of NO2 and SO2 from Sentinel-5P were positively correlated with surface measurements. The highest spatial NO2 concentrations occur in Jabodetabek and Cilegon City, and the highest spatial SO2 concentrations occur in Cilegon City. The eruption of Mount Anak Krakatau in January 2019 caused higher SO2 concentrations compared to 2020 and 2021. During the rainy season, the concentration of NO2 and SO2 decreases. NO2 and SO2 concentrations also decreased due to the low vehicle and industrial activity at the beginning of the COVID-19 pandemic in 2020.
       
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      http://repository.ipb.ac.id/handle/123456789/116599
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      • UT - Geophysics and Meteorology [1720]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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