Precessional hydroclimatic synchronicity changes in the Indo-Pacific Warm Pool driven by the intertropical convergence zone over the past 450 kyr

被引：0
作者：
Qian, Fang [1 ,2 ,3 ]
Chang, Fengming [1 ,4 ,5 ]
Nuernberg, Dirk [6 ]
Zhang, Shuai [7 ]
Wang, Yi [2 ]
Zhang, Junru [1 ,5 ]
Tang, Luyao [1 ,5 ]
Li, Tiegang [4 ,8 ]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
[2] Tulane Univ, Dept Earth & Environm Sci, New Orleans, LA USA
[3] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA USA
[4] Qingdao Marine Sci & Technol Ctr, Lab Marine Geol, Qingdao, Peoples R China
[5] Univ Chinese Acad Sci, Beijing, Peoples R China
[6] GEOMAR Helmholtz Ctr Ocean Res Kiel, Kiel, Germany
[7] Hohai Univ, Coll Oceanog, Nanjing, Peoples R China
[8] MNR, Inst Oceanog 1, Key Lab Marine Geol & Met, Qingdao, Peoples R China
来源：
GEOLOGICAL MAGAZINE | 2024年 / 161卷
基金：
中国国家自然科学基金;
关键词：
Indo-Pacific warm pool; tropical hydroclimate; intertropical convergence zone (ITCZ); precession; LAST GLACIAL MAXIMUM; EAST-ASIAN MONSOON; WESTERN PACIFIC; TROPICAL PACIFIC; SURFACE-TEMPERATURE; SEA-SURFACE; MODEL SIMULATIONS; SUMMER MONSOON; CLIMATE-CHANGE; INDIAN-OCEAN;
D O I：
10.1017/S0016756824000177
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The Indo-Pacific Warm Pool (IPWP) significantly influences the global hydrological cycle through its impact on atmospheric-oceanic circulation. However, gaining a comprehensive understanding of the hydrologic climate dynamics within the IPWP and its broader effects on the global climate have been hindered by spatial and temporal limitations in paleoclimate records on orbital timescales. In this study, we reconstructed precipitation records (approximated from delta O-18(sw-ivc)) over the past 450 kyr, based on planktonic foraminiferal Mg/Ca and delta O-18 data obtained from International Ocean Discovery Program Site U1486 in the western tropical Pacific. The delta O-18(sw-ivc) record revealed a generally consistent pattern with precession variations over the past 450 kyr, closely corresponding to changes in boreal summer insolation at the equator. The delta O-18(sw-ivc) record displayed an anti-phased relationship with Chinese speleothem delta O-18 records on the precession band, with lower precipitation in the western tropical Pacific and higher precipitation in the East Asia summer monsoon region during periods of high Northern Hemisphere summer insolation. This anti-phased correlation primarily resulted from the north-south migration of the Intertropical Convergence Zone (ITCZ), influenced by the interhemispheric insolation contrast. By considering additional delta O-18(sw-ivc) records from various locations within the IPWP region, we identified synchronous precipitation changes within the IPWP on the precession band. The synchronization of precipitation on both margins of the ITCZ's seasonal range and differences between central and marginal regions of the ITCZ within the IPWP revealed the expansion and contraction of the ITCZ on precession band.
引用
收藏
页数：15
相关论文
共 106 条
  • [1] An Z.S., The history and variability of the East Asian paleomonsoon climate, Quaternary Science Reviews, 19, pp. 171-187, (2000)
  • [2] Barker S., Greaves M., Elderfield H., A study of cleaning procedures used for foraminiferal Mg/Ca paleothermometry, Geochemistry, Geophysics, Geosystems, 4, pp. 1-20, (2003)
  • [3] Battisti D.S., Ding Q., Roe G.H., Coherent pan-Asian climatic and isotopic response to orbital forcing of tropical insolation, Journal of Geophysical Research: Atmospheres, 119, pp. 11-997, (2014)
  • [4] Bemis B.E., Spero H.J., Bijma J., Lea D.W., Reevaluation of the oxygen isotopic composition of planktonic foraminifera: experimental results and revised paleotemperature equations, Paleoceanography, 13, pp. 150-160, (1998)
  • [5] Berger A., Loutre M.F., Precession, eccentricity, obliquity, insolation and paleoclimates, Long-Term Climatic Variations. NATO ASI Series, 22, (1994)
  • [6] Berger A.L., Long-term variations of daily insolation and quaternary climate changes, Journal of the Atmospheric Sciences, 35, pp. 2362-2367, (1978)
  • [7] Bintanja R., van de Wal R.S., Oerlemans J., Modelled atmospheric temperatures and global sea levels over the past million years, Nature, 437, pp. 125-128, (2005)
  • [8] Bolliet T., Holbourn A., Kuhnt W., Laj C., Kissel C., Beaufort L., Kienast M., Andersen N., Garbe-Schonberg D., Mindanao Dome variability over the last 160 kyr: episodic glacial cooling of the West Pacific Warm Pool, Paleoceanography, 26, (2011)
  • [9] Bosmans J.H.C., Drijfhout S.S., Tuenter E., Hilgen F.J., Lourens L.J., Rohling E.J., Precession and obliquity forcing of the freshwater budget over the Mediterranean, Quaternary Science Reviews, 123, pp. 16-30, (2015)
  • [10] Braconnot P., Marzin C., Gregoire L., Mosquet E., Marti O., Monsoon response to changes in Earth’s orbital parameters: comparisons between simulations of the Eemian and of the Holocene, Climate of the Past, 4, pp. 281-294, (2008)
12345678910