Search
NPS | 2018
Snow cover strongly influences the energy budget and regional climate of higher latitudes and elevations. The seasonal freeze-thaw (FT) transition is coupled with snowpack melt dynamics and impacts…
NPS | 2018
The Everglades National Park (EVER) and Big Cypress National Preserve (BICY) vegetation mapping project is a component of the Comprehensive Everglades Restoration Plan (CERP). The CERP is a…
NPS | 2018
The NPS contracted with ABR, Inc., to develop a map that depicts the day of the year that a Landsat 30-meter pixel becomes snow free during the spring from 1999 to 2015. Annual coverage is…
NPS | 2018
The NPS is using the entire Landsat 30-meter resolution data archive (1980s to the present) to study changes in the total surface area of lakes and ponds in the national parks of northern and central…
NPS | 2018
Snowmelt and rain-on-snow (ROS) events enhance the liquid water content of a snowpack, which affects snow properties such as depth, density, grain size, and extent. These changes are associated with…
NPS | 2018
There are 88 NPS park units designated as Ocean and Coastal Parks that encompass 11,000 shoreline miles and 2.5 million acres of ocean and Great Lakes waters. Due to the large and complex…
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…