GSTDTAP  > 气候变化
DOI10.1029/2020GL090994
Sea surface temperatures in the Indian Sub‐Antarctic Southern Ocean for the last four Interglacial periods
Sunil Kumar Shukla; Xavier Crosta; Minoru Ikehara
2021-04-11
发表期刊Geophysical Research Letters
出版年2021
英文摘要

Interglacial periods (IG) offer an opportunity to understand natural climate variability and its drivers under potential warmer‐than‐present conditions. However, sea‐surface temperature (SST) records from the Southern Ocean (SO) are limited. The first SST record from the Sub‐Antarctic western Indian SO covering the last four IGs suggest warmer conditions during Marine Isotope Stage 5e than 9e, 7e, and Holocene. Each IG presents two (early and late) warm phases interrupted by a cooling, except Holocene that experienced a continuous warming. The early warm phase might be attributable to changes in northern summer insolation with feedbacks from Northern and Southern Hemisphere ice‐sheets, global oceanic circulation, and the carbon cycle. Conversely, the late warm phase might be due to changes in Southern Hemisphere summer insolation. Larger millennial‐scale SST variability for IGs older than Holocene could be attributed to a less stable thermohaline circulation, which resulted in more variable heat redistribution between the two hemispheres.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/321967
专题气候变化
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GB/T 7714
Sunil Kumar Shukla,Xavier Crosta,Minoru Ikehara. Sea surface temperatures in the Indian Sub‐Antarctic Southern Ocean for the last four Interglacial periods[J]. Geophysical Research Letters,2021.
APA Sunil Kumar Shukla,Xavier Crosta,&Minoru Ikehara.(2021).Sea surface temperatures in the Indian Sub‐Antarctic Southern Ocean for the last four Interglacial periods.Geophysical Research Letters.
MLA Sunil Kumar Shukla,et al."Sea surface temperatures in the Indian Sub‐Antarctic Southern Ocean for the last four Interglacial periods".Geophysical Research Letters (2021).
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