|
This folder contains hyperspectral imaging and sampling data for the Upper Delaware River National Parks collected by the Civil Air Patrol with their Airborne real-time cueing hyperspectral enhanced reconnaissance (ARCHER) sensor and by members of the Leetown Science Center team. Data were collected for the purpose of evaluating value of hyperspectral imaging for the identification submerged aqauatic vegetation, including the invasive diatom, Didymo germinata, in shallow riverine systems. Also included are field data collected by the Pennsylvania Nature Conservancy and by the USGS team of researchers. The two Upper Delaware National Park recreational areas and their ecological health are of primary importance to...
|
Climate change information simulated by global climate models is downscaled using statistical methods to translate spatially course regional projections to finer resolutions needed by researchers and managers to assess local climate impacts. Several statistical downscaling methods have been developed over the past fifteen years, resulting in multiple datasets derived by different methods. We apply a simple monthly water-balance model (MWBM) to demonstrate how the differences among these datasets result in disparate projections of snow loss and future changes in runoff. We apply the MWBM to six statistically downscaled datasets for 14 general circulation models (GCMs) from the Climate Model Intercomparison Program...
Categories: Data;
Types: NetCDF OPeNDAP Service;
Tags: BCCA,
BCSD,
Climatology,
Contiguous United States,
LOCA, All tags...
MACA,
USGS Science Data Catalog (SDC),
United States,
Water Resources,
effects of climate change,
hydrologic processes,
numerical modeling,
runoff,
snow and ice cover,
snow water equivalent, Fewer tags
|
This data release consists of digitized glacier margins that represent the maximum extent of glaciers in Glacier National Park (GNP) and two glaciers on U.S. Forest Service’s Flathead National Forest land during the peak of the Little Ice Age. Glacier margins are based on moraine deposits that result from active glaciation, and do not depict perennial snow and ice. Moraines are continuous arcuate rock deposits with distinct crests that form at the ice edge of active glaciers. The criteria used for identifying the former size and location of glaciers were a) the presence of a terminal moraine, b) the presence of one or both lateral moraines, and c) whether the identified glacier area was 0.020 km2 (five acres) or...
Tags: Flathead National Forest,
Glacier National Park,
Montana,
USGS Science Data Catalog (SDC),
aerial imagery, All tags...
alpine glacier,
cryosphere,
environment,
geoscientificInformation,
glacier area,
glacier retreat,
glaciers,
moraine,
satellite imagery,
snow and ice cover, Fewer tags
|
Boreal ecosystems comprise about one tenth of the world’s land surface and contain over 20 % of the global soil carbon (C) stocks. Boreal soils are unique in that the mineral soil is covered by what can be quite thick layers of organic soil. These organic soil layers, or horizons, can differ in their state of decomposition, source vegetation, and disturbance history. These differences result in varying soil properties (bulk density, C content, and nitrogen (N) content) among soil horizons. These data were used in a manuscript (https://doi.org/10.5194/essd-2019-114) where these soil properties, as represented by over 3000 samples from Interior Alaska, were summarized. We also examined how soil drainage and stand...
Categories: Data,
Data Release - Revised;
Tags: Alaska,
Alaska,
Ecology,
Interior Alaska,
Soil Sciences, All tags...
USGS Science Data Catalog (SDC),
biogeochemistry,
environment,
soil,
soil chemistry,
soil horizons,
soil moisture, Fewer tags
|
|
