Ground Penetrating Radar, Utqiagvik (Barrow), Alaska

Dataset · Wed Dec 31 23:00:00 EST 2014

DOI:https://doi.org/10.15485/1171723· OSTI ID:1171723

Peterson, John ^[1]

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1. Lawrence Berkeley National Laboratory

This is 500 MHz Ground Penetrating Radar collected sporadically along the AB Line from 2012 to 2014 and along L2 (Site 0) from 2011 to 2014. A smaller area along AB line has also been surveyed in 2013 and 2014. Some of the surveys have been performed in the summer and fall season to estimate thaw depth (thaw depth measured right before the start of the freezing season have been used as proxy for active layer thickness). Some of the surveys have been performed in late fall when a thin snow layer was covering the ground and thus provide information on both thaw depth and snow depth. Finally, some surveys have been performed in the winter and provide snow depth only. The used velocity to calculate depth from GPR travel time have been estimated based on the site characteristics. Some collocated measurement of thaw and snow depth using a tile probe are also provided. The archive contains 17 *.csv datafile and 18 *.csv metadata files. 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 Ecosystem Experiments (NGEE) Arctic
• Sponsoring Organization: U.S. DOE > Office of Science > Biological and Environmental Research (BER)
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1171723
• Report Number(s): NGA023; https://doi.org/10.5440/1171723
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > ACTIVE LAYER
EARTH SCIENCE > CRYOSPHERE > FROZEN GROUND > SEASONALLY FROZEN GROUND
EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW DEPTH
ESS-DIVE CSV File Formatting Guidelines Reporting Format
ESS-DIVE File Level Metadata Reporting Format