Warming-induced spring net carbon uptake contributes to enhanced carbon sink activity in the northern high latitudes

Zhihua Liu1, John Kimball2, Nicholas Parazoo3, Ashley Ballantyne1, Nima Madani3, Susan Natali4, Jennifer Watts5, Ana Bastos6 and Philippe Ciais7, (1)University of Montana, Missoula, MT, United States, (2)University of Montana, Numerical Terradynamic Simulation Group, W.A. Franke College of Forestry & Conservation, Missoula, MT, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (4)Woods Hole Science Center, Falmouth, MA, United States, (5)Woods Hole Research Center, Falmouth, United States, (6)Ludwig-Maximilians Universität, München, Germany, (7)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France