Focusing on the serious haze event in January 2013 in Beijing

we analyzed remote sensing results of haze aerosol properties based on passive-active joint monitoring approaches. The analyses show that the active remote sensing approaches have advantages during the high pollution cases or the nighttime

while the passive approaches provide more information for aerosol characterization. By joint use of ground-based site

vertical profile

and satellite coverage monitoring

one can preliminarily realize the stereoscopic observation of haze aerosols.