Science, Space and Technology News 2024
Satellite image of Adam’s Inlet in Alaska captured on August 28, 2023, by the Operational Land Imager-2 on Landsat 9.
Adam’s Inlet, previously covered by thick ice, is now ice-free and features braided rivers, landslide debris, and alluvial fans spread across a dynamic landscape in Glacier Bay National Park. From a geological perspective, Adam’s Inlet in Alaska has undergone major changes in the blink of an eye. Just 130 years ago, the inlet was covered by ice hundreds of meters thick. Today, it is ice-free.The inlet, which drains into the East Arm of Glacier Bay, lies within Glacier Bay National Park. “Since the end of the Little Ice Age about 150 years ago, Glacier Bay has seen deglaciation on a scale almost unseen anywhere else on Earth,” said Dan Shugar, a University of Calgary geomorphologist.
The OLI-2 on Landsat 9 captured this image of the area on August 28, 2023. Several streams flow into the inlet, including a large one that drains meltwater from the Casement Glacier. It is one of several glaciers in the eastern part of the park that has retreated by several kilometers in recent decades, partly because of warming air and water temperatures., meaning they have lots of strands that interweave, and can change dramatically from day to day over the melt season.
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