Monitoring of coalbed water retention ponds in the Powder River Basin using Google Earth images and an Unmanned Aircraft System

Xiaobing Zhou, Montana Technological University, Geological Engineering, Butte, United States, Zhaoming Zhou, Montana Tech of The University of Montana, Geophysical Engineering, Butte, MT, United States, Martha E Apple, Montana Tech of The University of Montana, Butte, MT, United States and Lee Spangler, Montana State University, Energy Research Institute, Bozeman, MT, United States