干旱区生态环境知识资源中心(Arid): Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America

Arid

DOI	10.1029/2020PA003936
	Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America
	Chiessi, C. M.; Mulitza, S.; Taniguchi, N. K.; Prange, M.; Campos, M. C.; Haeggi, C.; Schefuss, E.; Pinho, T. M. L.; Frederichs, T.; Portilho-Ramos, R. C.; Sousa, S. H. M.; Crivellari, S.; Cruz, F. W.
通讯作者	Chiessi, CM (corresponding author), Univ Sao Paulo, Sch Arts Sci & Humanities, Sao Paulo, Brazil.
来源期刊	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN	2572-4517
EISSN	2572-4525
出版年	2021
卷号	36 期号:4
英文摘要	Modern precipitation over northeastern (NE) South America is strongly controlled by the seasonal meridional migration of the Intertropical Convergence Zone (ITCZ). Ample evidence from the Northern Hemisphere suggests a mid- to late Holocene southward migration of the ITCZ. Such a shift would be expected to increase precipitation over semi-arid northern NE Brazil (Southern Hemisphere). However, the most robust precipitation record from northern NE Brazil shows a drying trend throughout the Holocene. Here, we address this issue presenting a high-temporal resolution reconstruction of precipitation over northern NE Brazil based on data from a marine sediment core, together with analyses of mid- and late Holocene simulations performed with the fully coupled climate model FGOALS-s2. Both, our data and the climate model simulations show a decrease in precipitation over northern NE Brazil from the mid- to the late Holocene. The model outputs further indicate a latitudinal contraction of the seasonal migration range of the ITCZ that, together with an intensification of the regional Walker circulation, were responsible for the mid- to late Holocene changes in precipitation over NE South America. Our results reconcile apparently conflicting precipitation records and climate mechanisms used to explain changes in precipitation over NE South America.
英文关键词	precipitation Intertropical Convergence Zone Holocene South America organic and inorganic geochemistry
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000644566400004
WOS关键词	NORTH-ATLANTIC CLIMATE ; HEINRICH STADIAL 1 ; SEA-LEVEL HISTORY ; CARBONATE DISSOLUTION ; ENVIRONMENTAL-CHANGES ; TROPICAL ATLANTIC ; INDIAN MONSOON ; AMAZON BASIN ; BRAZIL ; SEDIMENTS
WOS类目	Geosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS研究方向	Geology ; Oceanography ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368879
作者单位	[Chiessi, C. M.; Campos, M. C.] Univ Sao Paulo, Sch Arts Sci & Humanities, Sao Paulo, Brazil; [Mulitza, S.; Prange, M.; Haeggi, C.; Schefuss, E.; Frederichs, T.; Portilho-Ramos, R. C.] Univ Bremen, MARUM Ctr Marine Environm Sci, Bremen, Germany; [Taniguchi, N. K.; Sousa, S. H. M.] Univ Sao Paulo, Inst Oceanog, Sao Paulo, Brazil; [Haeggi, C.] Univ Southern Calif, Dept Earth Sci, Los Angeles, CA 90007 USA; [Pinho, T. M. L.; Crivellari, S.; Cruz, F. W.] Univ Sao Paulo, Inst Geosci, Sao Paulo, Brazil; [Frederichs, T.] Univ Bremen, Fac Geosci, Bremen, Germany
推荐引用方式 GB/T 7714	Chiessi, C. M.,Mulitza, S.,Taniguchi, N. K.,et al. Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America[J],2021,36(4).
APA	Chiessi, C. M..,Mulitza, S..,Taniguchi, N. K..,Prange, M..,Campos, M. C..,...&Cruz, F. W..(2021).Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(4).
MLA	Chiessi, C. M.,et al."Mid- to Late Holocene Contraction of the Intertropical Convergence Zone Over Northeastern South America".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.4(2021).