TY - JOUR AU - Dewi Tamara Qothrunada, AU - Virgianto, Rista Hernandi AU - Nugroho Dion Koestantio, AU - Siti Najma Nindya Utami, AU - Dhiyaul Qalbi Syofyan, AU - Hendri Satria WD, PY - 2020/09/09 Y2 - 2024/03/29 TI - ESTIMASI KONSENTRASI NO2 PERMUKAAN DARI TOTAL COLUMN NO2 SATELIT AURA-OMI DI CISARUA PERIODE 2017-2018 JF - Jurnal Meteorologi Klimatologi dan Geofisika JA - jmkg VL - 6 IS - 3 SE - Articles DO - UR - https://jurnal.stmkg.ac.id/index.php/jmkg/article/view/136 SP - 23-31 AB - <p><strong><em>A</em></strong><strong><em>BSTRACT</em></strong></p><p>&nbsp;</p><p><em>AURA / OMI satellite data with a spatial resolution of 0.25 ̊ x 0.25 ̊ can be used to determine the concentration of pollutants in areas that have not been observed, one of </em><em>them</em><em> is NO<sub>2</sub>. NO<sub>2</sub> </em><em>total column </em><em>concentrations </em><em>derived from</em><em> AURA / OMI satellite represent the density of pollutants vertically from the surface to the height of the troposphere, so it is necessary to calculate </em><em>and</em><em> estimate NO<sub>2</sub> concentrations on the surface. The purpose of this study was to </em><em>validate</em> <em>the</em><em> surface NO<sub>2</sub> concentration</em><em>s</em><em> estimation with </em><em>the surface </em><em>observation data at the Atmospheric Monitoring Post</em><em> in Cisarua</em><em> from January 2017 to December 2018. Estimation of surface NO<sub>2</sub> concentration using AURA / OMI satellite was </em><em>calculated</em><em> by including vertical column density </em><em>from </em><em>CAMs</em> <em>model</em><em>. The validation method used </em><em>are</em><em> correlation with significance test and error analysis using R</em><em>oot </em><em>M</em><em>ean </em><em>S</em><em>quare </em><em>E</em><em>rror (RMSE)</em><em>. Based on the calculation, the highest correlation coefficient obtained </em><em>is</em><em> 0.31 in March-April-May with significant</em><em> test</em><em> in the annual period and the March-April-May</em><em> period</em><em>. Error analysis results </em><em>showed</em><em> the lowest error value is in September-October-November while the highest value is in December-January-February.</em></p><p><em>&nbsp;</em></p><p><em>Keywords: NO2, AURA / OMI, CAMs, total column, estimation</em></p> ER -