Iron and Phosphorus Geochemistry in High-Centered and Low-Centered Polygon Soils from the Barrow Environmental Observatory, Utqiagvik, Alaska, 2015

Dataset · Fri May 15 04:00:00 EDT 2020

DOI:https://doi.org/10.5440/1618325· OSTI ID:1618325

Herndon, Elizabeth ^[1]; Kinsman-Costello, Lauren; Di-Domenico, Nicolle; Duroe, Kiersten; Barczok, Maximilian; Smith, Chelsea; Wullschleger, Stan

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1. Oak Ridge National Laboratory

This dataset provides chemical characterization of soil cores obtained in triplicate from center and trough positions of a high-centered polygon and center, ridge, and trough positions of a low-centered polygon in the NGEE Arctic research area within the Barrow Environmental Observatory, Utqiagvik, Alaska. Photographs of the 15 collected cores are provided. Cores were collected to thaw depth in early October 2015 and subsequently divided into subsamples for analysis, which included bulk soil horizons (organic or mineral) and finer scale depth increments (minimum 4 cm thickness per increment). Bulk horizons and depth increments were characterized using sequential chemical extractions for Fe and P and with Fe K-edge x-ray absorption spectroscopy. Additional soil parameters such as loss-on-ignition, gravimetric water content, and carbon and nitrogen concentrations were also quantified for bulk horizons. This dataset includes four csv files, one pdf user guide, and one zip folder of *.jpg photos.The Next-Generation Ecosystem Experiments: Arctic (NGEE Arctic), was a research effort 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: ORNL
• OSTI ID: 1618325
• Report Number(s): https://doi.org/10.5440/1618325; NGA226
• Availability: ORNL
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
Barrow Environmental Observatory
Barrow
Alaska
EARTH SCIENCE > LAND SURFACE > FROZEN GROUND
EARTH SCIENCE > LAND SURFACE > SOILS
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY
Loss-on-ignition
Utqiagvik
Alaska
X-ray absorption spectroscopy
iron
phosphorus
sequential extractions
soil C
soil N
soil chemistry