Institution: | (1) Lamont-Doherty Earth Observatory of Columbia University, 10964 Palisades, NY, USA;(2) Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, 96822 Honolulu, HI, USA;(3) Present address: the Institute of Arctic and Alpine Research, University of Colorado, 80309 Boulder, CO, USA |