Siberia Integrated Regional Study megaproject: approaches, first results and challenges E. Gordov (1) and E. Vaganov (2) (1) Siberian Center for Environmental research and Training and Institute of Monitoring of Climatic and Ecological Systems SB RAS, Tomsk, Russia, gordov@scert.ru (2)Institute of Forest SB RAS and Siberian Federal University, Krasnoyarsk, Russia December 16, 2010 AGU Fall Meeting San Francisco, USA