Geology, geography and global energy

Scientific and Technical Journal

Flooding on the Ashamba River in the Wake of a Black Sea Storm

2013. №1, pp. 9-17

Barmin Aleksandr N. - D.Sc. in Geography, Professor, Astrakhan State University, 20a Tatishchev st., Astrakhan, Russian Federation, 414000, abarmin60@mail.ru

Yevsyukov Yuriy D. - C.Sc. in Geography, Russian Academy of Sciences, , 1g Prostornaya st., Krasnodar reg., Gelendzhik, Russian Federation, 353467, evsgeol@rambler.ru

Kozyreva Vera N. - Post-graduate student, Volgograd State University, 9-137 Aleksandrova st., Volgskiy, 404127, Russian Federation, kozyreva0307@mail.ru

Rudnev Valeriy I. - Younger research assistant, Russian Academy of Sciences, , 1g Prostornaya st., Krasnodar reg., Gelendzhik, Russian Federation, 353467, evsgeol@rambler.ru

Zimovets Petr A. - Post-graduate student, Astrakhan State University, 66 Pushkin st., Volgskiy, Russian Federation, 404104, petrzimovets@yandex.ru

Kuklev Sergey B. - C.Sc. in Geography, Russian Academy of Sciences, , 1g Prostornaya st., Krasnodar reg., Gelendzhik, Russian Federation, 353467, kuklev@ecologpro.ru

Golovachev Ilya V. - C.Sc. in Geography, Astrakhan State University, Astrakhan department of Russian geographical society, 16 Tatishcev st., Astrakhan, Russian Federation, 414025, bask_speleo@mail.ru

Khvoroshch Aleksey B. - Research assistant, Russian Academy of Sciences, , 1g Prostornaya st., Krasnodar reg., Gelendzhik, Russian Federation, 353467, orso@land.ru

The article states that atmospheric instability in Krasnodar region caused heavy precipitation in the July, 4th–7th, 2012 timespan. The sharp rainfall apparently activated an ’inactive cyclone’ over the northeast sector of the Black Sea. The cumulus-type clouds responsible for the downpour were noted at an altitude of nine km. The critique relates that thermal and dynamic factors, both caused by local orographic conditions, played an important role in the synoptic events leading to the showers. According to a meteorological station located at Ge-lendzhiksky Airport, a total of 428.6mm of rain fell during a 14-hour period on July 6th. The heavy precipitation, the paper says, caused the Ashamba River to overflow its catchment basin, revealing two paleo-terrace deposits. According to the study, the flooding established an opportune basis for repeated (post-flooding) depth measurements. For this task, echo sounders with split-hair accu-racy were used. Moreover, a bathygraphic chart was created in the wake of the overflows. The review states that morphological data from this chart were listed for comparison with that accruing from an earlier chart created in 2010. Over-all, the flooding caused the Ashamba to release about 520 thousand m3 of sediment on July 16th, a figure that is around 22 times the annual sedimentary runoff of the Tuapse River. In the blueprint’s view, the Ashamba runoff is a sign of the July flooding’s catastrophic proportions.

Key words: flooding,glen,bay,relief,bathymetry,geomorphology

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