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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 | 2012
The Great Smoky Mountains National Park is collecting light detection and ranging (lidar) data in partnership with the State of North Carolina and the U.S. Geological Survey (USGS) to develop high-…
NPS | 2012
The topography of many Alaskan national parks has changed greatly over the last 50 years primarily because of glacier retreat and downwasting (thinning). Glaciers have downwasted as much as 640 m and…
NPS | 2012
Snow cover plays a major role in the energy and freshwater balances of Alaska, and variability in snow cover extent and duration are climatologically important. The Southwest Alaska Network Inventory…
NPS | 2012
Warming in the northern high latitudes is expected to alter freeze and break-up dates of lake ice, affecting lake ecosystems, wildlife migration and habitat, human subsistence, and recreation. …
NPS | 2012
The National Park Service (NPS) Arctic Inventory and Monitoring Network (ARCN) is concerned with understanding widespread ecological changes in the northern Alaskan national parks. Repeat…
NPS | 2012
The lowlands of the NPS ARCN, like much of the arctic and subarctic, have extensive areas of lakes and ponds. According to the National Hydrography Dataset (USGS NHD 2012) there are approximately 1,…