We discuss the characteristics of the spatiotemporal variations of the aerosol optical depth (AOD) and the atmospheric moisture content in Far East region according to data of ground-based (AERONET) and satellite (MODIS) many-year observations. It is noted that the seasonal variations of the aerosol turbidity in the region of Ussuriysk are qualitatively similar to those for other midlatitude regions, but differ by larger AOD values and larger amplitude of the annual behavior. The AOD values (0.5mm) are maximal in May and equal to 0.38. The spatial distribution mainly exhibits the increase of the turbidity from northwest toward southeast: the annually average AOD value (0.55mm) is 0.14 in Transbaikalia, 0.2 in Primorye, 0.3 over the Sea of Japan, 0.39 in East China, and 0.23 over the Sea of Okhotsk.
solar photometry, satellite monitoring, aerosol optical depth, spatial distribution, annual behavior