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Sea ice variations in the northern Okhotsk Sea shelf since the Last Glacial Maximum
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Xuejiao Jiang1, Kunshan Wang1, 2, *, Zhi Dong1, 2, Jianjun Zou1, 2, Jihua Liu1, 2, Zhen Li1, Gorbarenko Sergey3, Bosin Alexander3, Xuefa Shi1, 2
Haiyang Xuebao | 2023, 45(5) : 1 - 13
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Haiyang Xuebao | 2023, 45(5): 1-13
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Sea ice variations in the northern Okhotsk Sea shelf since the Last Glacial Maximum
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Xuejiao Jiang1, Kunshan Wang1, 2, *, Zhi Dong1, 2, Jianjun Zou1, 2, Jihua Liu1, 2, Zhen Li1, Gorbarenko Sergey3, Bosin Alexander3, Xuefa Shi1, 2
Affiliations
  • 1Key Laboratory of Marine Geology and Metallogeny, First Institude of Oceanoraphy, Ministry of Natural Resources, Qingdao 266061, China
  • 2Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
  • 3V.I. Il’ichev Pacific Oceanological Institute, FEB of RAS, Vladivostok 690041, Russia
Published: 2023-05-01 doi: 10.12284/hyxb2023074
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Here we examine the history of sea ice activity recorded in the Core LV87-54-1 recovered from the northern Okhotsk Sea shelf using high-resolution grain-size analyses. We extracted 3 end members and use EM3 as the sea-ice proxy, using the program AnalySize to conduct end members analyses on the data. According to EM3 results, active sea ice was persistently predominant in the northern Okhotsk Sea shelf since the Last Glacial Maximum. The EM3 content was high and the sea ice activity was intense during the Last Glacial Maximum and Heinrich Stadial 1. The climate cooling at the middle and high latitudes of the Northern Hemisphere and the negative Arctic Oscillation were the main controlling mechanism for sea ice expansion during glacial periods. And weakened runoff from the Amur caused by decreased East Asian Summer Monsoon would allow more sea ice formation in the Okhotsk Sea. Sea ice formation decreased at the onset of the Bølling-Allerød warm period, and then decreased sharply after a slight peak during the Younger Dryas Event. EM3 levels remained low stably since the Holocene due to: increased local autumn insolation, positive Arctic Oscillation and enhanced East Asian Summer Monsoon suppresses subsequent sea ice formation.

ice-rafted debris  /  grain-size analyses  /  end members analyses  /  sea ice variations  /  the Okhotsk Sea
Xuejiao Jiang, Kunshan Wang, Zhi Dong, Jianjun Zou, Jihua Liu, Zhen Li, Gorbarenko Sergey, Bosin Alexander, Xuefa Shi. Sea ice variations in the northern Okhotsk Sea shelf since the Last Glacial Maximum[J]. Haiyang Xuebao, 2023 , 45 (5) : 1 -13 . DOI: 10.12284/hyxb2023074
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Article Info
doi: 10.12284/hyxb2023074
  • Receive Date：2022-07-01
  • Online Date：2025-12-26
  • Published：2023-05-01
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  • Received：2022-07-01
  • Revised：2022-09-15
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Affiliations
    1Key Laboratory of Marine Geology and Metallogeny, First Institude of Oceanoraphy, Ministry of Natural Resources, Qingdao 266061, China
    2Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
    3V.I. Il’ichev Pacific Oceanological Institute, FEB of RAS, Vladivostok 690041, Russia
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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