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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 | 2015
In September 2014, Grand Teton National Park and John D. Rockefeller Jr. Memorial Parkway partnered with the Fish and Wildlife Service (FWS) National Elk Refuge to collect high-resolution light…
NPS | 2015
As part of the ongoing effort to collect lidar coverage across the entire Shenandoah National Park, the NPS worked with the U.S. Geological Survey (USGS) National Geospatial Program liaison to…
NPS | 2015
The NPS is using WorldView-2 high-resolution satellite imagery to monitor coastal change in Alaska's arctic national parks with the help of cooperators at the University of Alaska Fairbanks (…
NPS | 2015
The GIS Team conducted a comprehensive update and densification of interior National Hydrography Dataset (NHD) data features for Glacier Bay National Park and Preserve (GLBA). The editing protocol…
NPS | 2015
As part of the Comprehensive Everglades Restoration Plan (CERP), this project is mapping vegetation comunities in Everglades National Park and parts of Big Cypress National Preserve via collaboration…
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. …