DOI: 10.5194/cp-10-2253-2014
Scopus记录号: 2-s2.0-84919796755
论文题名: Millennial meridional dynamics of the Indo-Pacific Warm Pool during the last termination
作者: Lo L. ; Shen C.-C. ; Wei K.-Y. ; Burr G.S. ; Mii H.-S. ; Chen M.-T. ; Lee S.-Y. ; Tsai M.-C.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2014
卷: 10, 期: 6 起始页码: 2253
结束页码: 2261
语种: 英语
Scopus关键词: Bolling
; core analysis
; Hadley cell
; Heinrich event
; last glaciation
; meridional circulation
; planktonic foraminifera
; precipitation (climatology)
; sea surface temperature
; Southern Hemisphere
; teleconnection
; warm pool
; Younger Dryas
; Coral Sea
; Pacific Ocean
; Solomon Sea
英文摘要: To develop an in-depth understanding of the natural dynamics of the Indo-Pacific Warm Pool (IPWP) during the last deglaciation, stacked north- (N-) and south-IPWP (S-IPWP) thermal and hydrological records over the past 23-10.5 ka were built using planktonic foraminiferal geochemistry data from a new core, MD05-2925 (9.3° S, 151.5° E water depth 1661 m) in the Solomon Sea and eleven previous sites. Ice-volume-corrected seawater δ18O (δ18OSW-IVC) stacks show that S-IPWP δ18OSW-IVC values are indistinguishable from their northern counterparts through glacial time. The N-IPWP SST (sea surface temperature) stacked record features an increasing trend of 0.5 °C kag-1 since 18 ka. Its S-IPWP counterpart shows an earlier onset of temperature increase at 19 ka and a strong teleconnection to high-latitude climate in the Southern Hemisphere. Meridional SST gradients between the N- and S-IPWP were 1-1.5 °C during the Bølling/Allerød period and 1 °C during both Heinrich event 1 and the Younger Dryas, due to a warmer S-IPWP. A warm S-IPWP during the cold events could weaken the southern hemispheric branch of the Hadley cell and reduce precipitation in the Asian monsoon region. © 2014 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49193
Appears in Collections: 气候变化与战略
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Recommended Citation:
Lo L.,Shen C.-C.,Wei K.-Y.,et al. Millennial meridional dynamics of the Indo-Pacific Warm Pool during the last termination[J]. Climate of the Past,2014-01-01,10(6)