scholarly journals Rapid transitions in the Atlantic thermohaline circulation triggered by global warming and meltwater during the last deglaciation

2007 ◽  
Vol 8 (12) ◽  
pp. n/a-n/a ◽  
Author(s):  
Gregor Knorr ◽  
Gerrit Lohmann
Keyword(s):  
Global Warming ◽  
Thermohaline Circulation ◽  
Last Deglaciation ◽  
The Last Deglaciation ◽  
Atlantic Thermohaline Circulation

Intensification and variability of ocean thermohaline circulation through the last deglaciation

2004 ◽  
Vol 225 (1-2) ◽  
pp. 205-220 ◽  
Author(s):  
Alexander M. Piotrowski ◽  
Steven L. Goldstein ◽  
Sidney R. Hemming ◽  
Richard G. Fairbanks
Keyword(s):  
Thermohaline Circulation ◽  
Last Deglaciation ◽  
The Last Deglaciation

scholarly journals Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation

Nature ◽  
2012 ◽  
Vol 484 (7392) ◽  
pp. 49-54 ◽  
Author(s):  
Jeremy D. Shakun ◽  
Peter U. Clark ◽  
Feng He ◽  
Shaun A. Marcott ◽  
Alan C. Mix ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Last Deglaciation ◽  
Carbon Dioxide Concentrations ◽  
The Last Deglaciation

Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation

Nature ◽  
1999 ◽  
Vol 402 (6761) ◽  
pp. 511-514 ◽  
Author(s):  
Carsten Rühlemann ◽  
Stefan Mulitza ◽  
Peter J. Müller ◽  
Gerold Wefer ◽  
Rainer Zahn
Keyword(s):  
Atlantic Ocean ◽  
Thermohaline Circulation ◽  
Tropical Atlantic ◽  
Last Deglaciation ◽  
Tropical Atlantic Ocean ◽  
The Last Deglaciation

Correlation between Vegetation in Southwestern Africa and Oceanic Upwelling in the Past 21,000 Years

2000 ◽  
Vol 54 (1) ◽  
pp. 72-80 ◽  
Author(s):  
Ning Shi ◽  
Lydie M. Dupont ◽  
Hans-Jürgen Beug ◽  
Ralph Schneider
Keyword(s):  
Thermohaline Circulation ◽  
Sea Surface ◽  
Pollen Record ◽  
Sea Surface Temperatures ◽  
Last Deglaciation ◽  
Surface Temperatures ◽  
Oceanic Upwelling ◽  
The Last Deglaciation ◽  
The Last Glacial Maximum ◽  
The Last Glacial

Dinoflagellate cyst and pollen records from marine sediments off the southwestern African coast reveal three major aridification periods since the last glaciation and an environmental correlation between land and sea. Abundant pollen of desert, semi-desert, and temperate plants 21,000–17,500 cal yr B.P. show arid and cold conditions in southwestern Africa that correspond to low sea surface temperatures and enhanced upwelling shown by dinoflagellate cysts. Occurrence of Restionaceae in the pollen record suggests northward movement of the winter-rain regime that influenced the study area during the last glacial maximum. Decline of Asteroideae, Restionaceae, and Ericaceae in the pollen record shows that temperate vegetation migrated out of the study area about 17,500 cal yr B.P., probably because of warming during the last deglaciation. The warming in southwestern Africa was associated with weakened upwelling and increased sea surface temperatures, 2000–2800 years earlier than in the Northern Hemisphere. Aridification 14,300–12,600 cal yr B.P. is characterized by a prominent increase of desert and semi-desert pollen without the return of temperate vegetation. This aridification corresponds to enhanced upwelling off Namibia and cooler temperatures in Antarctica, and it might have been influenced by oceanic thermohaline circulation. Aridification 11,000–8900 cal yr B.P. is out of phase with the northern African climate. Reduction of the water vapor supply in southwestern Africa at that time may be related to northward excursions of the Intertropical Convergence Zone.

scholarly journals Synchronous Strengthening of the Indian and East Asian Monsoons in Response to Global Warming Since the Last Deglaciation

2019 ◽  
Vol 46 (7) ◽  
pp. 3944-3952 ◽  
Author(s):  
Wenying Jiang ◽  
Suzanne A.G. Leroy ◽  
Shiling Yang ◽  
Enlou Zhang ◽  
Luo Wang ◽  
...  
Keyword(s):  
Global Warming ◽  
East Asian ◽  
Last Deglaciation ◽  
The Last Deglaciation ◽  
Asian Monsoons

scholarly journals Abrupt Warming of the Intermediate-Depth Atlantic Ocean in Response to Thermohaline Circulation Slowdown During the Last Deglaciation

PAGES news ◽  
2003 ◽  
Vol 11 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Carsten Rühlemann ◽  
S Mulitza ◽  
G Lohmann ◽  
A Paul ◽  
M Prange ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Thermohaline Circulation ◽  
Last Deglaciation ◽  
Intermediate Depth ◽  
The Last Deglaciation

scholarly journals Deglacial variability of South China hydroclimate heavily contributed by autumn rainfall

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chengfei He ◽  
Zhengyu Liu ◽  
Bette L. Otto-Bliesner ◽  
Esther C. Brady ◽  
Chenyu Zhu ◽  
...  
Keyword(s):  
East Asia ◽  
South China ◽  
Thermohaline Circulation ◽  
Climate Model ◽  
Asian Summer Monsoon ◽  
Last Deglaciation ◽  
Northerly Wind ◽  
The North ◽  
Asian Summer ◽  
Atlantic Thermohaline Circulation

AbstractThe deglacial hydroclimate in South China remains a long-standing topic of debate due to the lack of reliable moisture proxies and inconsistent model simulations. A recent hydroclimate proxy suggests that South China became wet in cold stadials during the last deglaciation, with the intensification proposed to be contributed mostly by the East Asian summer monsoon (EASM). Here, based on a deglacial simulation in a state-of-the-art climate model that well reproduces the evolution of EASM, winter monsoon (EAWM) and the associated water isotopes in East Asia, we propose that the intensified hydroclimate in South China is also contributed heavily by the rainfall in autumn, during the transition between EASM and EAWM. The excessive rainfall in autumn results from the convergence between anomalous northerly wind due to amplified land-sea thermal contrast and anomalous southerly wind associated with the anticyclone over Western North Pacific, both of which are, in turn, forced by the slowdown of the Atlantic thermohaline circulation. Regardless the rainfall change, however, the modeled δ18Op remains largely unchanged in autumn. Our results provide new insights to East Asia monsoon associated with climate change in the North Atlantic.

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