Application of interval approach to pattern recognition for identification of preceeding baric structures that determine extreme thermal modes in the South-Kuril area in summer

• Published in: Izvestiya TINRO
• Main Authors: T. A. Shatilina, G. Sh. Tsitsiashvili, T. V. Radchenkova
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Transactions of the Pacific Research Institute of Fisheries and Oceanography 2021
• Subjects: южнокурильский район; метод интервального распознавания; барические структуры; тропосферные депрессии; тропосферные гребни; Aquaculture. Fisheries. Angling; SH1-691; Okhotsk; Pacific; okhotsk sea
• Online Access: https://doi.org/10.26428/1606-9919-2021-201-470-483; https://doaj.org/article/b6387d10e72f43d98c4b102466b8fb60

Patterns of atmosphere baric fields preceeded to development of extreme thermal modes in the South-Kuril area in summer are identified using the interval approach to their recogni tion. The best recognition rates are noted for the field of AT 500 hPa over the region of East Asia in February, March, May, and June. Extreme cold summer conditions in the South-Kuril area in summer were preceeded by development of AT 500 hPa trough and baric depression at the sea surface over East Asia in these winter and spring months. Warm summer conditions in the South-Kuril area were preceeded by opposite patterns, as AT 500 hPa ridge over the North-West Pacific and high pressure over the Okhotsk Sea, with positive anomalies of H500 height over the North-West Pacific and Kuril Islands.