The Northeast Archeological Resources Program (NARP) supports archeological resource planning, research, and baseline inventory and evaluation of archeological resources in the Interior Region 1 North Atlantic-Appalachian (formerly Northeast Region). NARP uses a suite of tools in their work with archeological resources including Geographic Information Systems (GIS) and Global Positioning Systems (GPS), with an integrated program of remote sensing to contribute to the enhancement of arc
Glaciers are important sentinels of a changing climate, crucial components of the global cryosphere, and integral to ecosystem functioning in the surrounding landscape. Until now, commonly used methods for mapping glacier change were labor intensive and thus limited in temporal and spatial scope. This work addressed some of those limitations by developing a novel deep learning–based method called GlacierCoverNet, a deep neural network that relies on an extensive, customized training dataset.
Ice wedges are a common feature of permafrost regions that form when cracks in frozen ground are filled by ice. Because they are located near the ground surface and have little covering insulation, they are susceptible to thaw and can be an early warning sign of permafrost loss. Ice wedges are also responsible for much of the unique polygonal patterned ground in the Arctic.
Glaciers are an iconic part of the landscape in south-central Alaska and cover approximately half of Kenai Fjords National Park. Glaciers play a role in local terrestrial, freshwater, and marine ecosystems and are one of the highlights for local tours. Like most glaciers in Alaska, the glaciers in Kenai Fjords have been shrinking.
National Park Service (NPS) scientists had been monitoring water quality in a small lake in Yukon-Charley Rivers National Preserve since 2005 when they noticed a sudden and persistent increase in the ionic concentration in 2019. The specific conductance of the lake water increased over time.