Browsing by Author "Mackensen, A."
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A first look at past sea surface temperatures in the equatorial Indian Ocean from Mg/Ca in foraminifera
Saraswat, R.; Nigam, R.; Weldeab, S.; Mackensen, A.; Naidu, P.D. (AGU, 2005)Sea surface temperature (SST) for the central equatorial Indian Ocean, has been reconstructed over the last approx. 137 kyr, from Mg/Ca of the planktonic foraminiferal species Globigerinoides ruber. According to our record ... -
A tropical warm pool in the Indian Ocean and its influence on ENSO over the past 137, 000 yrs BP
Saraswat, R.; Nigam, R.; Weldeab, S.; Mackensen, A. (Indian Academy of Sciences, 2007)The tropical sea surface temperature (SST) is one of the important factors that regulates the amount and duration of rainfall in the tropical region, the world’s most densely populated region. The tropical oceanic warm ... -
Deglaciation in the tropical Indian Ocean driven by interplay between the regional monsoon and global teleconnections
Saraswat, R.; Lea, D.W.; Nigam, R.; Mackensen, A.; Naik, Dinesh K. (Elsevier, 2013)High resolution climate records of the ice age terminations from monsoon-dominated regions reveal the interplay of regional and global driving forces. Speleothem records from Chinese caves indicate that glacial terminations ... -
Inconsistent change in surface hydrography of the eastern Arabian Sea during the last four glacial-interglacial intervals
Saraswat, R.; Kurtarkar, S.R.; Yadav, R.; Mackensen, A.; Singh, D.P.; Bhadra, S.; Singh, A.D.; Tiwari, M.; Prabhukeluskar, S.P.; Bandodkar, S.R.; Pandey, D.K.; Clift, P.D.; Kulhanek, D.K.; Bhishekar, K.; Nair, S. (Cambridge University Press (CUP), 2020)The eastern Arabian Sea is influenced by both the advection of upwelled water from the western Arabian Sea and winter convective mixing. Therefore, sediments collected from the eastern Arabian Sea can help to understand ... -
Indonesian throughflow controlled the westward extent of the Indo-Pacific Warm Pool during glacial-interglacial intervals
Saraswat, R.; Singh, D.P.; Lea, D.W.; Mackensen, A.; Naik, D.K. (2019)The tropical atmospheric circulation is strongly influenced by the sea surface temperature (SST) of the warmest region of the world ocean, the Indo-Pacific Warm Pool (IPWP). The effect of recent anomalous Indian Ocean ... -
Last glacial-interglacial productivity and associated changes in the eastern Arabian Sea
Naik, Dinesh K.; Lea, D.W.; Kurtarkar, S.R.; Mackensen, A. (Elsevier, 2017)We reconstruct paleo-productivity and bottom water oxygenation changes during the past 32ka, from the southeastern Arabian Sea, using absolute abundance of planktic foraminifera, relative abundance of Globigerina bulloides, ... -
Linkage between seasonal insolation gradient in the tropical northern hemisphere and the sea surface salinity of the equatorial Indian Ocean during the last glacial period
Saraswat, R.; Nigam, R.; Mackensen, A.; Weldeab, S. (Geological Society of China, 2012)Paired stable oxygen isotope and Mg/Ca analyses in calcite tests of the mixed-layer-dwelling planktic foraminifer Globigerinoides ruber has been used to reconstruct equatorial Indian Ocean delta sup(18)O of seawater (delta ...