Detecting subtle change from dense landsat time series: Case studies of mountain pine beetle and spruce beetle disturbance - Ye, Su; Rogan, John; Zhu, Zhe; Hawbaker, Todd; Hart, Sarah J.; Andrus, Robert; Meddens, Arjan; Hicke, Jeffery; Eastman, J.; Kulakowski, Dominik (Remote Sensing of Environment, 2021)