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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…
NPS | 2011
GPS data received by collars on caribou, moose, muskox, and wolves is relayed via communication satellites to the desks of wildlife biologists. This technology allows biologists to track these…
NPS | 2011
The Alaska Region I&M program uses a variety of remote sensing technologies to assist its efforts to inventory vegetation and soils within the region. As with other NPS programs, the…
NPS | 2011
The Alaska Regional Cultural Resources program uses all available imagery to evaluate land areas for the presence of cultural sites and to assess the status of known sites. For example, an…
NPS | 2011
Kenai Fjords National Park staff use GPS technology to map the terminus of Exit Glacier at the beginning and end of each summer. This semiannual monitoring effort allows park managers to understand…
NPS | 2011
In support of NPS Alaska Region Inventory and Monitoring Program a sampling design was developed, through a contract with the private sector, of soil and vegetation in Lake Clark National Park and…