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Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). Nine instrument sites were established in April 2018, seven of which were given a borehole approximately 2.3 meters (m) deep for repeat nuclear magnetic resonance (NMR) logging to quantify unfrozen water content and soil properties in the near surface. NMR data were collected from each borehole a total of ten times between April 2018 and October 2020, at a...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Active layer thickness,
Alaska,
Bonanza Creek,
Borehole nuclear magnetic resonance,
Disturbance, All tags...
Fairbanks North Star,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Hydrologic processes,
Land Change Science Program,
Permafrost,
U.S. Geological Survey,
USGS,
environment,
field monitoring stations,
geoscientificInformation,
hydrologic processes,
permafrost, Fewer tags
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Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). Nine instrument sites were established in April 2018 and initially comprised a buried seismic station for continuous passive recording of the seismic wavefield, and seven of the nine sites were given a borehole for repeat nuclear magnetic resonance (NMR) logging. Between June 2018 and September 2019, measurements of active-layer thaw depth were regularly recorded...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Active layer thickness,
Alaska,
Bonanza Creek,
Disturbance,
Fairbanks North Star, All tags...
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Hydrologic processes,
Land Change Science Program,
Permafrost,
U.S. Geological Survey,
USGS,
environment,
field monitoring stations,
geoscientificInformation,
hydrologic processes,
permafrost, Fewer tags
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Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). In April 2018, seven boreholes were emplaced to depths of 2.3-2.5 meters (m) to allow for repeat logging with downhole nuclear magnetic resonance (NMR) to quantify the spatial and temporal variations in unfrozen water content within active-layer and permafrost soils. NMR data were collected on ten separate occasions between April 2018 and October 2020. In June...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Active layer thickness,
Alaska,
Bonanza Creek,
Borehole nuclear magnetic resonance,
Disturbance, All tags...
Electrical resistivity tomography,
Fairbanks North Star,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Hydrologic processes,
Land Change Science Program,
Permafrost,
U.S. Geological Survey,
USGS,
USGS Science Data Catalog (SDC),
electrical resistivity imaging,
environment,
field monitoring stations,
geoscientificInformation,
hydrologic processes,
permafrost,
soil moisture,
soil temperature, Fewer tags
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This data set is a compilation of discrete and high frequency water quality data from sites on Allequash Creek in Wisconsin, and within the Allequash Creek watershed, for the water years (WY) 2019-2021.
Categories: Data;
Tags: Allequash Creek,
BDOC,
USGS Science Data Catalog (SDC),
Water Quality,
Wisconsin, All tags...
biota,
carbon dioxide,
discharge,
dissolved inorganic carbon,
dissolved organic carbon,
stream,
water quality,
wetland, Fewer tags
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Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). Nine instrument monitoring sites (APEX1-APEX9) were established in April 2018. To quantify permafrost and thaw zone characteristics along the instrumented gradient, electrical resistivity tomography (ERT) data were collected in August 2018 along four 82 meter (m)-long transects between select sites: APEX1-3, APEX5-3, APEX5-7, and APEX6-8. Data were collected...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Active layer thickness,
Alaska,
Bonanza Creek,
Disturbance,
Electrical resistivity tomography, All tags...
Fairbanks North Star,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Hydrologic processes,
Land Change Science Program,
Permafrost,
U.S. Geological Survey,
USGS,
electrical resistivity imaging,
environment,
field monitoring stations,
geoscientificInformation,
hydrologic processes,
permafrost, Fewer tags
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