Chugach Mountains, Alaska:  RapidEye satellite false colour image of the lower part of Martin River Glacier in the Chugach Mountains, Alaska. The ripples and curved moraines are an indication of unstable, episodic or pulsating glacier flow. Copyright Planet Labs, Inc. CC-BY-SA 4.0.
Published Mar. 12, 2019 3:55 PM

A new methodology to combine heaps of satellite images allows researchers from University of Oslo with colleagues to create a complete time series of glacier movement. To demonstrate the methodology, they created a map of ice flow every month, over several years, covering several mountain ranges in Southern Alaska and Canada. Once created, the dataset revealed several sudden glacier speed-ups and slow-downs.