1. a Earth Observation Systems Laboratory (EOSL), Department of Earth and Atmospheric Sciences , University of Alberta , Edmonton, Alberta, T6G 2E3, Canada
2. b Alberta Sustainable Resource Development , 9920-108, Street, Edmonton, T5K 2M4, Alberta, Canada
3. c Alberta-Pacific Forest Industries Inc. , Box 8000, Boyle, Alberta, T0A 0M0, Canada