Leaf onset in the northern hemisphere triggered by daytime temperature - Piao, S. L. (Zhongguo ke xue yuan. Institute of Tibetan Plateau Research) ; Tan, Jianguang (Sino-French Institute for Earth System Science) ; Chen, Anping (Princeton University. Departament of Ecology and Evolutionary Biology) ; Fu, Yongshuo H.. (Sino-French Institute for Earth System Science) ; Ciais, Philippe (Laboratoire des Sciences du Climat et de l'Environment) ; Liu, Qiang (Sino-French Institute for Earth System Science) ; Janssens, Ivan (Universiteit Antwerpen. Departement Biologie) ; Vicca, Sara (Universiteit Antwerpen. Departement Biologie) ; Zeng, Zhenzhong (Sino-French Institute for Earth System Science) ; Jeong, Su-Jong (Jet Propulsion Laboratory (U.S.)) ; Li, Yue (Sino-French Institute for Earth System Science) ; Myneni, Ranga B. (Boston University. Department of Earth and Environment) ; Peng, Shushi (Sino-French Institute for Earth System Science) ; Shen, Miaogen (Zhongguo ke xue yuan. Institute of Tibetan Plateau Research) ; Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)