A Simulation Study of Aerosol Optical Depth over China in 2006 and Its Validation with Observations

摘要

The Model of Atmospheric Transport and Chemistry (MATCH) developed by the National Center for Atmospheric Research (NCAR) is used to calculate the aerosol optical depth (AOD) over China in 2006, with the updated emission inventory of Streets (2007) and NCEP/NCAR reanalysis data as its inputs. The simulation results of AOD are then compared with observational data from Chinese Sun Hazemeter Network (CSHNET), Aerosol Robotics Network (AERONET) at more than 23 stations over China, and Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. The model reproduces most of the prominent features in the CSHNET observation data with an overall agreement within a factor of 2. However, there exist large differences between the simulation and the MODIS data, due to the large uncertainties in the model and the satellite data.