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A preliminary analysis of the characteristics and mechanisms for the recurrence of wintertime SST anomalies in the southern Indian Ocean
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Yue Dong1, Hui Teng1, Yun Qiu1, *, Xinyu Lin1
Haiyang Xuebao | 2022, 44(6) : 37 - 47
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Haiyang Xuebao | 2022, 44(6): 37-47
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A preliminary analysis of the characteristics and mechanisms for the recurrence of wintertime SST anomalies in the southern Indian Ocean
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Yue Dong1, Hui Teng1, Yun Qiu1, *, Xinyu Lin1
Affiliations
  • 1. Ocean Dynamic Laboratory, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
Published: 2022-05-25 doi: 10.12284/hyxb2022043
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This study mainly uses the GECCO2 reanalysis data from 1958 to 2016 to analyze the spatiotemporal characteristics of the southern Indian Ocean sea surface temperature anomalies (SSTA) winter-to-winter recurrence through lag correlation analysis, and investigate the roles of oceanic reemergence mechanism and atmospheric forcing. The results show that the winter-to-winter recurrence of SSTA occurs south of 15ºS in the southern Indian Ocean, especially between Madagascar and southwestern Australia (15º–45ºS, 70º–100ºE). The recurrence mainly occurs in the winter of the following year, but there are also some areas where the recurrence occurs in the following fall and continue to the subsequent winter. Further analysis shows that the difference between the deep winter mixed layer and shallow summer mixed layer, known as the oceanic reemergence mechanism, is the main cause of the recurrence of SSTA in the southern Indian Ocean. In addition, the net heat flux also directly contributes to the recurrence of SSTA in southern Madagascar and southwestern Australia.

southern Indian Ocean  /  sea surface temperature  /  winter-to-winter recurrence  /  seasonal variability
Yue Dong, Hui Teng, Yun Qiu, Xinyu Lin. A preliminary analysis of the characteristics and mechanisms for the recurrence of wintertime SST anomalies in the southern Indian Ocean[J]. Haiyang Xuebao, 2022 , 44 (6) : 37 -47 . DOI: 10.12284/hyxb2022043
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Article Info
doi: 10.12284/hyxb2022043
  • Receive Date：2021-05-21
  • Online Date：2026-02-01
  • Published：2022-05-25
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  • Received：2021-05-21
  • Revised：2021-11-04
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    1. Ocean Dynamic Laboratory, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
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表12种不同金属材料的力学参数
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Number of
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Number of
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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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