Climatic causes of dangerous hydrological phenomena in the Altai region

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Climatic causes of dangerous hydrological phenomena in the Altai region Maria G. Sukhova 1 & Olga V. Zhuravleva 2 & Andrey V. Karanin 2 & Natalya F. Kharlamova 3 Received: 22 June 2020 / Accepted: 21 July 2020 # Springer Nature B.V. 2020

Abstract The research objective is to analyze the causes of the catastrophic rise in the water level of rivers in the Katun River basin (the territory of the Altai Republic) in 2014. The research was conducted through the consideration of the impact factors that lead to flooding of the territory. The moisture regime is analyzed, as well as the change in the air temperature of the considered basin. It is established that the flood in several areas of the Altai Republic located in the Katun River basin was caused by the cumulative effect of the natural and anthropogenic factors, which created the emergency situation, with the dominating natural one—the record high precipitation for the entire period of instrumental monitoring. The general reason for such prolonged and intense precipitation was the extensive stationary cyclone, which spread to most of the Altai Mountains due to the blocking role of the high-level anticyclone spread from the southeast to the western and central parts of Russia in the last third of May–the first third of June 2014. Keywords Atmospheric precipitation . Air temperature . Mountains . Katun River basin . River flood situation

Introduction Among the natural disasters observed on the territory of the Russian Federation, which cause great material damage, a special place is held by floods. The events of the last decade have expressly demonstrated their danger. Thus, in the summer of 2013, after many days of heavy rains on the Amur River, a catastrophic flood occurred, which resulted in the flooding of 185 settlements, the destruction of 15,000 residential buildings, and 611 km of roads (Semenov et al. 2014). At the end of June 2019, one of the most catastrophic floods in more than 100 years occurred in the Irkutsk region, which

* Maria G. Sukhova [email protected] 1

Laboratory of Landscape Water and Ecological Researches and Environmental Management, Institute of Water and Environmental Problems of the Siberian Branch of the Russian Academy of Science, 1 Molodezhnaya Str., Barnaul, Russian Federation 656038

2

Department of Geography and Nature Management, Gorno-Altaisk State University, 1 Lenkin Str., Gorno-Altaisk, Russian Federation 649000

3

Department of Physical Geography and Geoinformation Systems, Altai State University, 61a Lenin Ave., Barnaul, Russian Federation 656049

covered five districts. Only direct economic damage is estimated at several billion roubles. There are casualties (25 people died and 7 went missing) (Vinober 2019). Generally, in Russia, a territory with a total area of over 400.000 km2 is subject to potential flooding; the annual material damage from floods averages over 50 billion roubles. Over 35% of the population live in places that may be flooded (Vorobyov 2016). The problem is also relevant to the world community