Ground-Based Hyperspectral Characterization of Alaska Tundra Vegetation along Environmental Gradients

by Marcel Schwieder, Howard E. Epstein, Martha K. Raynolds, Marcel Buchhorn, Donald A. Walker, Birgit Heim
Published 2013-08-01

Recent Declines in Warming and Vegetation Greening Trends over Pan-Arctic Tundra

by Igor V. Polyakov, Compton J. Tucker, Jorge E. Pinzon, Howard E. Epstein, Josefino C. Comiso, Peter A. Bieniek, Donald A. Walker, Martha K. Raynolds, Uma S. Bhatt
Published 2013-08-01