Antarctic palaeoclimate variability on millennial, centennial and decadal time scales; Indian initiatives during 2010-2015

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doi: 10.16943/ptinsa/2016/48477
Author(s): Thamban, Meloth; Laluraj, C. M.; Mohan, Rahul
Author Affiliation(s): Primary:
ESSO - National Centre for Antarctic and Ocean Research, Goa, India
Volume Title: Glimpses of geoscience research in India; the Indian report to IUGS 2012-2016
Volume Author(s): Singhvi, Ashok Kumar, editor; Banerjee, Dhiraj Mohan; Gupta, Somnath Das; Mohan, Rahul; Chandrasekharan, P.; Ahmad, Talat; Bajpai, Sunil; Raju, S.; Srinagesh, D.
Source: Glimpses of geoscience research in India; the Indian report to IUGS 2012-2016, edited by Ashok Kumar Singhvi, Dhiraj Mohan Banerjee, Somnath Das Gupta, Rahul Mohan, P. Chandrasekharan, Talat Ahmad, Sunil Bajpai, S. Raju and D. Srinagesh. Proceedings of the Indian National Science Academy, 82(3), p.685-694. Publisher: Indian National Science Academy, New Delhi, India. ISSN: 0370-0046
Note: In English. 25 refs.; illus., incl. sketch map
Summary: Palaeoclimatic reconstructions using diverse types of climatic archives and proxies help us in understanding the long term climatic variability and improve our knowledge for climate change perspectives. Globally, the Cenozoic was characterized by the cyclicity of glacial and inter glacial fluctuations at regular intervals. Understanding the Antarctic climate variability on millennial, centennial to decadal level is crucial to our knowledge on the role and response of Antarctic ice sheets to the global climate variability. During the period 2010-15, the Indian scientists have used a variety of palaeoclimate records like marine/lake sediment cores and ice cores, mainly from the East Antarctica and its mar gins. The Indian studies have made significant contributions to the understanding of Antarctic climate variability and the various factors involved. Among the diverse types of studies undertaken, the ice core studies have generated lar ge amount of knowledge basis on the Antarctic climate and its global/regional linkages. Recent developments in the recovery and study of undisturbed sedimentary records from Antarctic lakes for the first time in the country provide an excellent opportunity to understand the last glacial to Holocene variability with better stratigraphic constraints. Compared to these, deeper sedimentary records from the Antarctic continental mar gin of fer us an important opportunity to study of evolution and dynamics of the Antarctic cryosphere from its inception.
Year of Publication: 2016
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 03 Geochronology; 24 Surficial Geology, Quaternary Geology; Alkaline earth metals; Annual variations; Antarctica; Asia; Be-10; Beryllium; Byrd Station; Cenozoic; Clastic sediments; Clay minerals; Climate change; Continental margin; Cores; Cryosphere; Current research; D/H; Decadal variations; Dust; East Antarctica; Expedition 318; Global; Grain size; Holocene; Hydrogen; IODP Site U1359; Ice; Ice cores; India; Indian Peninsula; Indicators; Integrated Ocean Drilling Program; Isotope ratios; Isotopes; Lacustrine environment; Lake sediments; Last glacial maximum; Magnetic properties; Magnetic susceptibility; Marie Byrd Land; Marine sediments; Metals; Mineral composition; Moisture; Nitrate ion; O-18/O-16; Oxygen; Paleoclimatology; Paleomagnetism; Pleistocene; Princess Elizabeth Land; Quaternary; Queen Maud Land; Radioactive isotopes; Reconstruction; Regional; Roundness; Sea ice; Sediments; Sheet silicates; Silicates; Size distribution; Southern Ocean; Stable isotopes; Time scales; Upper Pleistocene; Upper Quaternary; Wilkes Land; Winds
Coordinates: S645415 S645415 E1435738 E1435738
Record ID: 2017039128
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