2014/01/01 by Palwasha Khattak, Muhammad Fahim Khokhar, Saud Khan · 17 citations
Earth and Planetary Sciences · Environmental Science · Chemistry · #Atmospheric Ozone and Climate #Atmospheric chemistry and aerosols #Atmospheric and Environmental Gas Dynamics #Differential optical absorption spectroscopy #Volcano #Ozone Monitoring Instrument #SCIAMACHY #Satellite #Plume #Environmental science #Atmospheric sciences #Atmosphere (unit) #Sulfur dioxide #Vulcanian eruption #Ozone #Geology #Climatology #Meteorology #Absorption (acoustics) #Troposphere #Geography #Seismology #Physics #Chemistry
paper · pdf · doi:10.4209/aaqr.2013.12.0361
published in Aerosol and Air Quality Research 14(6), 1543-1557 (Taiwan Association for Aerosol Research)
openalex publication_date 2014/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/19
This study emphasizes on the amount of trans-boundary Sulfur dioxide (SO2) present in the atmosphere of Pakistan as a consequence of various global volcanic eruptions, by using satellite data. The data products of SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY), Ozone Monitoring Instrument (OMI) and Global Ozone Monitoring Experiment-2 (GOME-2) were used for the time period of 2004–2012. SO2 columns retrieved with Differential Optical Absorption Spectroscopy (DOAS) technique were used to perform both spatial and temporal analyses. The Nabro volcano eruption during 2011 had caused high SO2 columns over East Africa, Middle East and South Asian regions. Daily satellite observations were used to study SO2 plume pathway during this event. Other significant volcanic eruptions and their effects on atmospheric composition of Pakistan are also discussed. Back trajectory analysis is also performed to track the origin of air masses enriched with SO2 column densities detected over Pakistan. Maximum SO2 column densities of 9.4 Dobson Units (DU) were measured over Pakistan caused by Dalafilla volcanic eruption during November 2008.