Alaska permafrost characterization: Borehole Nuclear Magnetic Resonance Data & Models from 2019-2020

Borehole nuclear magnetic resonance (NMR) data were collected by the U.S. Geological Survey (USGS) at Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska, to quantify unfrozen water content and soil properties at select sites in and around the lake edge. In September 2019, NMR data were collected within two 2.3 m deep boreholes adjacent to the East and North perpendicular electrical resistivity survey lines. Manual permafrost-probe measurements of thaw depths were also collected. These two boreholes were logged a second time in late March 2020. Additional one-time NMR measurements of liquid water content were collected in September 2019 within the lakebed sediments (0-25 cm depth) in approximately 2.5 m lateral increments moving away from the shorelines in the East and North, between 0 and 12 m from shore. These NMR transects roughly coincided with the perpendicular electrical resistivity lines.

Data e Risorse

Campo Valore
accessLevel public
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publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • active-layer-thickness
  • alaska
  • amerigeo
  • amerigeoss
  • bonanza-creek
  • borehole-nuclear-magnetic-resonance
  • ckan
  • disturbance
  • environment
  • fairbanks-north-star
  • fires
  • geo
  • geology-geophysics-and-geochemistry-science-center
  • geoscientificinformation
  • geoss
  • gggsc
  • hydrologic-processes
  • land-change-science-program
  • national
  • north-america
  • permafrost
  • soil-moisture
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-5f5a5ab882cefd9f20865888
isopen False
license_id notspecified
license_title License not specified
maintainer Stephanie R James
maintainer_email sjames@usgs.gov
metadata_created 2025-11-22T20:09:28.968654
metadata_modified 2025-11-22T20:09:28.968658
notes Borehole nuclear magnetic resonance (NMR) data were collected by the U.S. Geological Survey (USGS) at Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska, to quantify unfrozen water content and soil properties at select sites in and around the lake edge. In September 2019, NMR data were collected within two 2.3 m deep boreholes adjacent to the East and North perpendicular electrical resistivity survey lines. Manual permafrost-probe measurements of thaw depths were also collected. These two boreholes were logged a second time in late March 2020. Additional one-time NMR measurements of liquid water content were collected in September 2019 within the lakebed sediments (0-25 cm depth) in approximately 2.5 m lateral increments moving away from the shorelines in the East and North, between 0 and 12 m from shore. These NMR transects roughly coincided with the perpendicular electrical resistivity lines.
num_resources 2
num_tags 26
title Alaska permafrost characterization: Borehole Nuclear Magnetic Resonance Data & Models from 2019-2020