Search
NPS | 2022
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…
NPS | 2022
The Northeast Archeological Resources Program (NARP) supports archeological resource planning, research, and baseline inventory and evaluation of archeological resources in the Interior Region 1…
NPS | 2022
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…
NPS | 2022
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,…
NPS | 2022
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…
NPS | 2021
The Yukon River basin encompasses 832,000 square-kilometers and is one of Earth's largest boreal-Arctic rivers. Characterized by a long, frozen winter season, the river demonstrates an abrupt…
NPS | 2021
Twenty years ago, ecological studies were often limited by the number of times biologists could find (relocate) their study animals. With the advent and now widespread use of Global Positioning…
NPS | 2021
The snow season has become shorter and the growing season longer over the past 20 years in Alaska's Arctic National Parks. The NPS Arctic Inventory and Monitoring Network (ARCN) uses MODIS (Moderate…
NPS | 2011
The Alaska Land Resources Program Center uses orthoimagery available from the Alaska Region's GIS site. Prior to good high-resolution digital orthoimagery, the location of many parcels were drawn…
NPS | 2011
Many parks depend on surveying for activities ranging from locating boundaries and cultural resources to monitoring geomorphological change. Assateague Island National Seashore and Cape Cod…
NPS | 2011
In recent years, the retreat of Exit Glacier has kept Kenai Fjords National Park’s trail crews busy extending trails as they strive to maintain safe visitor access to the edge of the glacier. …
NPS | 2011
The Inventory and Monitoring (I&M) Central Alaska Network stream monitoring program relies heavily on GPS and remote sensing technology. Remotely sensed imagery, particularly IKONOS and…