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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 | 2017
Snow wetness and icing can affect ecosystem processes at multiple spatial and temporal scales including hydrology, carbon cycling, wildlife movement, and human transportation. Snow wetness occurs…
NPS | 2017
In 2010, a team of researchers at the University of Washington worked with the NPS to analyze the canopy structure across Crater Lake National Park using lidar data. The data were used to identify…
NPS | 2017
In spring 2017, Denali National Park consulted with the NPS Alaska Regional Office (AKRO) to develop a project for the documentation of the aging Kantishna Roadhouse, a building located near the end…
NPS | 2017
The NPS has partnered with Alaska Biological Research (ABR), Inc., to develop an Alaska-wide map that shows general patterns of snowmelt in the spring at a 30-m (Landsat) scale. This…
NPS | 2017
The NPS, Arctic Inventory and Monitoring Network (ARCN) is using 35-mm aerial photography to monitor the growth of permafrost thaw slumps in the five national parks of northern Alaska. These slumps…
NPS | 2017
The Everglades National Park (EVER) and Big Cypress National Preserve (BICY) vegetation mapping project is a component of the Comprehensive Everglades Restoration Plan (CERP). This is a cooperative…
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…