CT Scans of Cores Metadata, Utqiagvik (Barrow), Alaska, 2015
- LBNL
Individual ice cores were collected from Barrow Environmental Observatory in Barrow, Alaska, throughout 2013 and 2014. Cores were drilled along different transects to sample polygonal features (i.e. the trough, center and rim of high, transitional and low center polygons). Most cores were drilled around 1 meter in depth and a few deep cores were drilled around 3 meters in depth. Three-dimensional images of the frozen cores were constructed using a medical X-ray computed tomography (CT) scanner. TIFF files can be uploaded to ImageJ (an open-source imaging software) to examine soil structure and soil densities within each core.The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a 15-year research effort (2012-2027) to reduce uncertainty in Earth System Models by developing a predictive understanding of carbon-rich Arctic ecosystems and feedbacks to climate. NGEE Arctic was supported by the Department of Energy's Office of Biological and Environmental Research.The NGEE Arctic project had two field research sites: 1) located within the Arctic polygonal tundra coastal region on the Barrow Environmental Observatory (BEO) and the North Slope near Utqiagvik (Barrow), Alaska and 2) multiple areas on the discontinuous permafrost region of the Seward Peninsula north of Nome, Alaska.Through observations, experiments, and synthesis with existing datasets, NGEE Arctic provided an enhanced knowledge base for multi-scale modeling and contributed to improved process representation at global pan-Arctic scales within the Department of Energy's Earth system Model (the Energy Exascale Earth System Model, or E3SM), and specifically within the E3SM Land Model component (ELM).
- Research Organization:
- Next Generation Ecosystems Experiment - Arctic, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (US)
- Sponsoring Organization:
- U.S. DOE > Office of Science > Biological and Environmental Research (BER)
- Contributing Organization:
- PNL, BNL,ANL,ORNL
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1170517
- Report Number(s):
- https://doi.org/10.5440/1170517; NGA014
- Availability:
- ORNL
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AB Transect
BD Transect
CT-computed Tomography
Drained Thaw Lake Basin (DTLB)
EARTH SCIENCE > AGRICULTURE > SOILS > ORGANIC MATTER
EARTH SCIENCE > AGRICULTURE > SOILS > SOIL DEPTH
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > PERMAFROST
EARTH SCIENCE > LAND SURFACE > SOILS > PERMAFROST
EC
Intensive site 0
Utqiagvik
Alaska
X-ray