11:45 〜 12:00
*Irina P Panyushkina1、David Meko 1、Richard Thaxton2、Alexander I Shiklomanov 3、Alexander Prusevich3、Stanley Glidden3、Richard Lammers3 (1.University of Arizona, Laboratory of Tree-Ring Research 、2. University of Idaho, Department of Earth and Spatial Sciences、3.University of New Hampshire, Earth Systems Research Center)