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NPS | 2016
In the summer of 2015 Crater Lake National Park (CRLA) hosted a research fellow with the George Melendez Wright Young Leaders in Climate Change program; Donal O’Leary, then a Masters student in…
NPS | 2016
The length and warmth of the growing season is changing in arctic Alaska, with important implications for wildlife and overall ecosystem productivity. The NPS in Alaska is using eMODIS (EROS MODIS)…
NPS | 2016
Water clarity is a key water-quality property in salmon-bearing lakes. Decreases in water clarity due to increases in glacial runoff have been shown to reduce salmon production by lowering the…
NPS | 2016
The current rapid retreat of glaciers in Kenai Fjords National Park (KEFJ) results in dramatic landscape change on a shorter time scale than is observed in many other parts of the country. Park…
NPS | 2016
Reductions in the duration of annual lake ice cover in Alaska are expected to produce profound environmental changes. These include biological productivity changes in aquatic and terrestrial…
NPS | 2016
A heavy rain event on August 18, 2015, triggered two landslides in the southeastern Alaska community of Sitka. The slides claimed three lives and caused substantial damage to property and…
NPS | 2013
One of the key early steps in preparing for sea-level rise and storm surge is ensuring that the geodetic “backbone,” the National Geodetic Survey (NGS) benchmarks, have long-term viability and…
NPS | 2013
Timucuan Ecological and Historic Preserve (TIMU), Jacksonville, FL, contains thousands of acres of healthy and productive salt marsh. These salt marshes provide crucial habitat to a wide variety of…
NPS | 2013
The Alaska Shallow Lake Monitoring Program, part of the NPS Inventory and Monitoring Program, monitors the water quantity and chemistry of shallow lakes along with the composition of the vegetation…
NPS | 2013
The 2010 lidar survey of Crater Lake National Park, Oregon, penetrated forested terrain to reveal surface features of the ignimbrite (pyroclastic flow deposit) from the climactic caldera-forming…
NPS | 2013
NPS used high-resolution IKONOS satellite images and a combination of manual and computer-assisted methods to map slumps and small landslides caused by thaw of permafrost in Alaska's Arctic national…
NPS | 2013
Slumps caused by thaw of permafrost are common in Alaska's Arctic national parks. Slumps often occur near rivers or lakes and can shed significant amounts of sediment into the adjacent water body.…