Assessment of the simulated aerosol optical properties and regional meteorology using WRF-Chem model

被引：6
作者：
Ali G. [1 ,2 ]
Bao Y. [1 ]
Asmerom B. [3 ,4 ]
Ullah W. [5 ]
Ullah S. [6 ]
Arshad M. [2 ,7 ]
机构：
[1] Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, School of Atmospheric physics, Nanjing University of Information Scien
[2] Pakistan Meteorological Department, Sector H-8/2, Islamabad
[3] Collaborative Innovation Centre on Forecast and Evaluation of Meteorological Disasters, Key Laboratory of Meteorological Disaster, Ministry of Education (KLME), International Joint Laboratory on Climate and Environment Change (ILCEC), Key Laboratory for Ae
[4] Department of Physics, Wollo University, P.O. Box 1145, Dessie
[5] Collaborative Innovation Center on Forecast, Evaluation of Meteorological Disasters (CIC-FEMD), School of Geographical Sciences, Nanjing University of Information Science and Technology (NUIST), Nanjing
[6] Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai
[7] School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing
来源：
Arabian Journal of Geosciences | 2021年 / 14卷 / 18期
关键词：
Aerosol; AOD; Atmospheric heating; Radiative forcing; Rainfall;
D O I：
10.1007/s12517-021-08238-1
中图分类号：
学科分类号：
摘要：
The Weather Research and Forecasting model coupled with chemistry (WRF-Chem) has been used to simulate aerosol optical properties and meteorological parameters including rainfall over Pakistan during July 2016. Two identical experiments are designed for simulation. The first one is based on WRF-Chem simulation with feedback from aerosols’ direct and indirect effects, whereas the second one does not include any aerosol effect. The robustness of the model simulations are examined against the data sets obtained from satellite- and ground-based observations. Different meteorological parameters, e.g. temperature, relative humidity, pressure, rainfall distribution, and aerosol optical properties, e.g. aerosol optical depth (AOD), aerosol extinction coefficient, and single scattering albedo (SSA), are simulated reasonably well. The magnitude and spatial distribution of AOD is simulated realistically over the study domain, particularly over eastern and northeastern parts with high aerosol burden due to natural and anthropogenic aerosols. The net atmospheric forcings due to both short waves (SW) and long waves (LW) and the resultant atmospheric heating simulated by the model are positive over the entire study domain with higher values over the northeastern part. It is shown that the rainfall magnitude is reduced by the inclusion of feedback from aerosol direct and indirect effects into the model simulation over different parts of the study area. © 2021, Saudi Society for Geosciences.
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