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Earth Observing Laboratory
Field Data Archive

Borehole Optical Stratigraphy measurements through 4 full years at Summit, Greenland

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Summary

These data consist of detailed measurements of the temporal and spatial variations of firn compaction to advance knowledge and understanding of ice deformation and across different fields, including remote sensing, snow morphology, and paleoclimatology. These details can be tracked over time to determine vertical motion and strain, which in the shallow depth is dominated by firn compaction. These data were gathered using the concept of Borehole Optical Stratigraphy (BOS).

Borehole Optical Stratigraphy is a method for recording the visual stratigraphy in a snow/firn borehole, generating a profile of brightness versus depth. The BOS instrument is a downward-looking video camera that is lowered down a borehole. The lens is wide-angle, and the view includes the walls of the borehole.

These data cover accumulation rates occurring between 1980-2008, and the data were collected between 2004-2009.

Data access

Additional information

Identifier
Versions
  • 1.0 (2011-01-05)
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Spatial Type point
Frequency < 1 second
Language English
Grant Code 352584
ISO Topic Categories
  • geoscientificInformation
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Temporal coverage

Begin datetime 2004-01-01 00:00:00
End datetime 2009-01-01 23:59:59

Spatial coverage


Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 72.70, Minimum (South) Latitude: 72.50
Minimum (West) Longitude: -38.60, Maximum (East) Longitude: -38.40

Primary point of contact information

Bob Hawley <robert.l.hawley@dartmouth.edu>

Additional contact information

Citation

Waddington, E., Hawley, B. 2011. Borehole Optical Stratigraphy measurements through 4 full years at Summit, Greenland. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.5065/D6XK8CPQ. Accessed 02 Dec 2024.

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NSF

This material is based upon work supported by the NSF National Center for Atmospheric Research, a major facility sponsored by the U.S. National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the U.S. National Science Foundation.