Filters: Tags: Shenandoah National Park (X)
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A combination of long-term daily temperature records and depth to bedrock measurements were used to parameterize one-dimensional models of shallow aquifer vertical heat transport in Shenandoah National Park, VA, USA. Spatially discontinuous roving water surface and bank temperatures surveys were performed with a handheld thermal infrared camera in September and December 2015 along the main channel of a headwater stream supporting coldwater-dependent brook trout (Salvelinus fontinalis). We also installed vertical arrays of thermal data loggers to estimate bulk thermal diffusivity of the saturated alluvium at two stations in the upper trout section. The methods are fully documented in the associated journal article,...
These data describe longitudinal (upstream to downstream) patterns of dewatering during summer baseflow (July-September) conditions in nine watersheds in Shenandoah National park. In July-August of 2016 all nine watersheds (Jeremy's Run, Hazel River, Piney River, Hughes River, Staunton River, Whiteoak Canyon Run, Paine Run, Meadow Run, and Big Run) were evaluated for dewatering. In September of 2019, dewatering surveys were repeated in three watersheds (Pine Run, Piney River, and Staunton River) to evaluate annual variation in dewatering patterns. Data were collected by team of investigators walking each stream from an upstream point defined by the point along the stream draining 75-hectares (determined using watershed...
The Shenanadoah Salamander (Plethodon shenandoah) is an endangered salamander found only in the mountains of Shenandoah National Park. Field surveys of the salamander were conducted from 2007-2022 using daytime cover object surveys. In order to capture the totality of P. shendandoah’s range we sampled from low to high elevation across a broad geographic range. We created a spatial generalized additive model with aspect, latitude, longitude, and elevation and heat load index (HLI) to predict salamander occupancy and create a new range map based on our extended surveys. All spatial covariates were extracted from a 15m digital elevation model layer of Shenandoah National Park. Temperature and precipitaiton data were...
Categories: Data;
Tags: Shenandoah National Park,
USGS Science Data Catalog (SDC),
amphibian,
none,
range map,
Shenandoah National Park, Virginia. Greenstone dike in basement rocks. Dike at the west side of the north portal of Marys Rock Tunnel, mile 32.1, Skyline Drive. Wallrock is granodiorite. Figure 15 (right), U.S, Geological Survey Bulletin 1265.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: National Parks,
Page County, Virginia,
Photographers,
Reed, J.C. Collection,
Shenandoah National Park,
Shenandoah National Park, Virginia. Sawed slab of porphyritic greenstone. Slab is from the outcrop on the south side of Skyline Drive at mile 80.9, about 100 yards east of Big Run Overlook in the southern section of the park. Angular to slightly rounded phenocrysts of plagioclase (now albite) occur in the matrix of finer grained albite, chlorite, and epidote displaying relict basaltic fabric. The phenocrysts in this specimen are somewhat larger than those in the porphyritic flows in the Big Meadows-Stony Man Area, but the texture is typical. Specimen collected by Professor Ernst Cloos, The Johns Hopkins University. Photo by J.P. Owens. Figure 14, U.S. Geological Survey Bulletin 1265.
Categories: Image;
Tags: Photographers,
Reed, J.C. Collection,
Shenandoah National Park,
Specimens,
photo print
Shenandoah National Park, Virginia. Franklin Cliffs, viewed from Big Meadows Campground, showing the prominent cliffs marking the outcrops of the second and third flows above the base of the Catoctin Formation. Note the change in attitude of flows near the fault. Figure 5, U.S. Geological Survey Bulletin 1265.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Formations,
National Parks,
Photographers,
Reed, J.C. Collection,
Shenandoah National Park,
Album caption: The summit profile of Stony Man (altitude 4,010 feet) on the crest of the Blue Ridge and the Little Stony Cliffs (left) are outcrops of ancient lava flows of the Catoctin Formation. Shenandoah National Park. Stony Man quadrangle. Madison County, Virginia. n.d. Published as frontispiece, U.S. Geological Survey Bulletin 1265 (1969).
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Formations,
National Parks,
Photographers,
Reed, J.C. Collection,
Shenandoah National Park,
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