Meteorological conditions for the formation of severe flooding in the Amur River basin in 2019 / Vasilevskaya L.N., Lisina I.A., Vasilevsky D.N., Ageeva S.V., Podverbnaya Е.N. // Hydrometeorological Research and Forecasting, 2020, no. 2 (376), pp. 90-108.

The heaviest flooding covered the lower part of the Amur basin in August – September 2019 is considered. The water level was up to the hazard category in the city of Khabarovsk and in the city of Komsomolsk-on-Amur and lasted for 18 and 38 days, respectively.

The research of weather and circulation process, that caused the dangerous nature of this flood, was carried out on the basis of routine hydrological observations of the Far Eastern Department of Hydrometeorology (Khabarovsk); according to meteorological observations of a number of stations of the Jewish AO, Khabarovsk region and China; open materials of reanalysis NCEP/NCAR, Japan Meteorological Agency, Far Eastern Research Hydrometeorological Institute.

The analysis of the atmospheric processes’ development over the Amur basin and over the water area of adjacent marginal seas was made on these materials. The regional typing developed by Far Eastern scientists was involved in the research. It is shown that the summer monsoon was well expressed during the entire study period of 2019 over the plains of the lower reaches of the Amur river, which affected the watering of this land area. Extreme precipitation in four short periods in August-September caused by three typhoons formed a catastrophic flood at the end of the summer period.

Keywords: maximum water levels, flood, Amur River, catastrophic flood 2019, Far Eastern depression, Okhotsk anticyclone, typhoons

Tab. 2. Fig. 7. Ref. 22.