ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 4, pp. 303-306

Analysis of the causes of the rain floods formation in the Bureya River basin in May – June 2019

N.I. Pererva 1 , A.N. Davidenko 1 , Yu.A. Amelchenko 1 
1 Far-Eastern Center of State Research Center for Space Hydrometeorology “Planeta”, Khabarovsk, Russia
Accepted: 20.08.2019
DOI: 10.21046/2070-7401-2019-16-4-303-306
Several periods of significant high-intensity precipitation occurred in the Verkhnebureinsky district of the Khabarovsk Krai in May and June. The main mechanism behind these precipitations is the interaction of contrasting air masses from the Sea of Okhotsk and the overheated Asian continent in a complex, mainly mountainous terrain. The nature of the formation of cumulonimbus cloudiness changes as the front sections with wave disturbances pass through the Bureya Range, while the intensity of precipitation increases significantly. As a result, in some parts of the Bureya River basin, rain floods of the category of adverse and dangerous hydrological phenomena were formed. By the example of the synoptic situation on the night of June 24 to 25, the process of formation of local cumulonimbus clouds having an «explosive» character under the influence of the orographic rise of the air masses is shown. The authors analyzed the images of the geostationary spacecraft Himawari-8 and the maps of precipitation intensity obtained on their basis and concluded that data on convective precipitation from observation points alone are insufficient due to the heterogeneity of convective precipitation. So, it is necessary to supplement the data of ground observations with satellite information to obtain a more complete picture of their amount and contribution to the formation of rain floods.
Keywords: Bureya River, rain flood, precipitation, water level, Himawari-8
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