12-14 September, 2011, Lucknow - Earth Science India

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National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow challenges” at Lucknow on scientists-people partnership. The delegates of the conference will also be involved in outreach activities apart from scientific deliberations. The main themes of the conference were selected in such a way to address all the domains of earth sciences: 1. Climatic changes in the geological history, impact on Earth, and imprints of Quaternary and recent climatic change as studied in glacial, fluvial and marine systems. 2. Indian monsoon and climate change 3. Atmospheric processes and climate change 4. Natural resource management- surface and ground water, mineral and fuel wealth. 5. Environmental pollution, solid-waste management 6. Green chemistry and related studies and impact on ecology and agriculture, forestry 7. Sustainable Development and renewable energy resources Apart from various technical sessions a panel of eminent scientists will also discuss “National strategies and plan for human and institutional capacity building in climate change”. An exhibition on ‘Solar Energy’ is also organized. As a part of outreach activities of SES a school children poster painting competition on ‘Save your Planet’ is also being organized jointly with Regional Science City, Lucknow to aware young students about the treat of climate change and their responsibility. Delegates have also offered to deliver popular lectures in surrounding schools and to interact with students. School students will also be invited in the inauguration of the conference to witness scientists interacting on core topics of science so as they are encourage to have career in earth sciences. The financial support received from the Ministry of Earth Science, Department of Science and Technology and Hindustan Aeronautics Limited greatly helped SES in organizing the Conference. Volunteer scientists of SES and other organizations and quality of technical papers received from delegates, show their commitment towards the society. We express our sincere gratitude to all of them. Satish C. Tripathi Usha Bajpai 2
National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow UNDERSTANDING THE INDIAN MONSOON THROUGH FAUNAL AND GEOCHEMICAL SIGNALS SINCE THE EARLY MIOCENE Anil K. Gupta Wadia Institute of Himalayan Geology, 33, General Mahadeo Singh Road, Dehradun 248 001 email: anilg@wihg.res.in The Indian monsoon is one of the most spectacular features on Earth marked by seasonally reversing winds. During summer (June-August), the monsoon winds are stronger and wet, whereas during winter (December-February) the winds are dry and variable. The summer and winter monsoon winds impact several parts of the Indian Ocean and its surrounding regions, driving important changes in ocean productivity and land vegetation. The summer monsoon rains are critical for food production, water supply and economic growth of the Asian societies. Thus the Indian monsoon constitutes a critical resource for the region’s largely agrarian economies, as almost two-third of India’s food production depends on summer rains, so are the rivers that cater to the domestic needs of the region. Northern Indian Ocean marine records of upwelling and sediment deposition indicate that the Indian monsoon experienced abrupt changes with major intensification during the middle (12-11 Ma) and late Miocene (10-8 Ma). These changes coincide with a shift in the continental vegetation from dominant C 3 type to dominant C 4 type plants. Evolution of the Indian monsoon has been closely related to the uplift of the Himalaya-Tibetan plateau with a major intensification during 10-8 Ma. However, there are debates about the relation of the 10-8 Ma event with the elevation changes in the Himalaya-Tibetan plateau. The study presents a new faunal and geochemical dataset from the Arabian Sea that indicates major changes in the Indian monsoon during the early and middle Miocene. The elevated heat source of the Himalaya and the Tibetan plateau is of vital importance to the establishment and maintenance of the Indian summer monsoon circulation. The Indian monsoon has varied on orbital and suborbital time scales. While long term changes in the Indian monsoon have been linked to the phased uplift of the Himalaya-Tibetan plateau superimposed by orbital changes, small scale, rapid changes as documented in late Quaternary and Holocene proxy records from marine sequences, speleothems, peat deposits, runoff in the Bay of Bengal, and fluvial sediments have been related to boundary conditions including Himalayan- Tibetan snow, North Atlantic variability, Eurasian temperatures, tropical sea surface temperatures, solar activity, vegetation changes, and linkages with the El- Nino Southern Oscillation, Indian Ocean Dipole or North Atlantic Oscillations. The late Quaternary and Holocene records of the monsoon from the Arabian Sea 3
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12-14 September, 2011, Lucknow - Earth Science India

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