Ecologist.
Geology, Minerals, Energy, and Geophysics Science Center
Email:
kmanies@usgs.gov
Office Phone:
650-329-5010
Fax:
650-329-4920
ORCID:
0000-0003-4941-9657
Supervisor:
Mark P Waldrop
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Our objective is to improve the scientific understanding of the modes, rates, and mechanisms of carbon stabilization and losses in soils from Alaska, California, and other Western states. We focus on the biophysical and microbial mechanisms that drive carbon gains and losses, and to use our data to improve models of soil carbon cycling. This catalog supports research from several projects focused on soil carbon cycling. It encompasses multiple types of datasets including environmental, ecological, biological, isotopic, mineralogical, genomic, flux, and modeled data from water, vegetation, soil, and atmospheric matrices. The catalog will be available online and to the public. Therefore, publication of data through...
Tags: Alaska,
California,
carbon,
carbon sequestration,
carbon storage, All tags...
genomics,
grasslands,
methane,
microbes,
microbial communities,
minerals,
permafrost,
soil, 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 July 2018, soil temperature and moisture sensors were installed at six out of the nine instrument locations (APEX1, APEX2, APEX3, APEX4, APEX7, APEX9). Thermistors (PS103J2, US Sensor, Orange, CA, USA) were placed at depths of 5, 30, 60, 120, and 180 centimeters (cm) with three replicates. Three sites (APEX1, APEX4, APEX9) contained an additional single...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Bonanza Creek,
Disturbance,
Fairbanks North Star,
GGGSC, All tags...
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,
soil moisture,
soil temperature, 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, 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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Site, field, and soil data collected from 14 sites along a chronosequence of wetland submergence on 15 – 17 October 2019 in a Louisiana salt marsh in Barataria Basin, part of the Mississippi River Deltaic Plain, along the northern Gulf of Mexico coast.
Categories: Data;
Tags: Botany,
Flora,
Louisiana Coastal,
Microbial Communities,
Soil Sciences, All tags...
USGS Science Data Catalog (SDC),
Water Quality,
biogeochemical cycling,
coastal submergence,
marsh,
soil,
wetland ecosystems, Fewer tags
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