Инд. авторы: | Astakhov A.S., Dar'in A.V., Kalugin I.A., Aksentov K.I. |
Заглавие: | Reconstructing the Frequency of Catastrophic Floods on the Western Coast of the Sea of Japan Based on Sedimentary Proxy |
Библ. ссылка: | Astakhov A.S., Dar'in A.V., Kalugin I.A., Aksentov K.I. Reconstructing the Frequency of Catastrophic Floods on the Western Coast of the Sea of Japan Based on Sedimentary Proxy // Russian Meteorology and Hydrology. - 2019. - Vol.44. - Iss. 1. - P.62-70. - ISSN 1068-3739. - EISSN 1934-8096. |
Внешние системы: | DOI: 10.3103/S1068373919010072; РИНЦ: 38663849; РИНЦ: 38663849; SCOPUS: 2-s2.0-85064557689; WoS: 000466734600007; |
Реферат: | eng: The history of coastal catastrophic floods was reconstructed for the first time using the geochemical proxy in shelf sediments. The reconstruction is based on the identification of sediment layers accumulated on the shelf during the intensive discharge of the river runoff suspended matter from the land which does not contain bromine. The set of isotopic (AMS C-14, Pb-210, Cs-137), tephrastratigraphic, and paleomagnetic methods was used for the detailed chronology of sediments. The scanning of chemical composition of sediments with the step of 0.5-0.8 mm is performed using the synchrotron radiation X-ray fluorescence in the VEPP-3 storage of the Institute of Nuclear Physics of Siberian Branch of Russian Academy of Sciences. The history of catastrophic floods for the past 1800 years is reconstructed based on the typical variations in bromine concentration in one of the cores from the Amur Bay (the Sea of Japan). New methodological approaches to the flood signal extraction are proposed. The revealed inverse correlation between the frequency of floods caused by typhoons over the coast of the Sea of Japan and southern China agrees with the existing assumption on the change in their trajectories in different periods of global climate change.
|
Ключевые слова: | X ray fluorescence; Sea of Japan; Paleoclimatology; Little Ice Age; Bottom sediments; Amur Bay; X rays; Synchrotron radiation; Suspended sediments; Storms; Ice; Hurricanes; Floods; Climate change; Bromine; X-ray fluorescence; typhoons; Sea of Japan; Paleoclimatology; Little Ice Age; floods; bromine; bottom sediments; Amur Bay; Fluorescence; |
Издано: | 2019 |
Физ. характеристика: | с.62-70 |