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Estimation of aerosol optical depth in relation to meteorological parameters over eastern and western routes of China Pakistan economic corridor

引用

Journal of Environmental Sciences 2021年第1期33卷 28-39页

作者： Bushra Khalid Ayesha Khalid Sidra Muslim Ammara Habib Kishwar Khan debora souza alvim Sehrish Shakoor Sonia Mustafa Sana Zaheer Momel Zoon Azmat Hayat Khan Sana Ilyas Bin Chen Institute of Geographic Sciences and Natural Resources Research Beijing 100101China University of Chinese Academy of Sciences Beijing 100049 China Department of Enuironmental Science International Islamic UniversityIslamabadPakistan The Abdus Salam International Centre for Theoretical Physics TriesteItaly Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China Competition Commission of Pakistan IslamabadPakistan Center of Natural Sciences and Humanities Federal University of ABCSanto AndreSPBrazil Pakistan Meteorological Department IslamabadPakistan Collaborative Innouation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University ofInformation Science&TechnologyNanjing 210044China

This study finds out seasonal and monthly variations in Aerosol Optical Depth(AOD)over eastern and western routes of China Pakistan Economic Corridor(CPEC)and the relationship between AOD and meteorological parameters(i.e.,temperature,rainfall and wind speed).The Moderate Resolution Imaging Spectroradiometer(MODIS)and Multi-angle Imaging Spectroradiometer(MISR)data was used from the terra satellite for the period of *** study aims to overtake the conventional view of the purpose of using the satellite *** study takes on to the concept that validated satellite data sets rather should be used for the analysis instead of just validation specifically for our study ***,after comparing MODIS AOD with MISR AOD,only MISR AOD dataset is used for further *** results show a decreasing trend of AOD in summer season,a positive relationship between temperature and AOD during winter and spring seasons whereas a positive relationship between wind speed and AOD in winter and spring seasons over eastern and western *** analysis of MODIS AOD and MISR AOD depicts May-Aug as the peak period of aerosol concentration over central *** inter-annual analysis shows the aerosol trend remained higher during summer season however rainfall shows the washout *** route has higher standard deviation and larger values for aerosol prevalence as compared to western *** trajectory analysis using the HYSPLIT model suggests the bias of air mass trajectory caused deviation in the aerosol trend in the year 2014.

关键词： Aerosol optical depth China-Pakistan economic corridor Meteorology Pollution development Seasonal analysis

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