Dataset
ICECAPS-MELT: Manual shear strength from two 1-m snow profiles in SW Greenland (May 2024)
Abstract
Shear strength (kPa) was measured in two 1-m deep snow profiles from southwest Greenland (Camp Raven, 66.48 N, 46.30 W, 2331 m asl) during Spring 2024. The snow profile measurements were made adjacent to an autonomous atmospheric and glaciological platform (the SLEIGH) as part of the ICECAPS-MELT experiment. Profile 1 was measured on 15 May 2024, 2-3 meters from the eventual SLEIGH installation. Profile 2 was measured on 18 May 2024, 20 m from the eventual SLEIGH installation.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Please contact the data centre for details on how to access these data.
For data use licensing information please contact: support@ceda.ac.uk |
| Data lineage: |
Shear strength was measured using one of two shear frames (100 cm2, 250 cm2) with one of two fish hook scales (range 0-110 N and 0-250 N). The choice depended on the strength of the snow relative to the force scale range. The measurements were made using American Avalanche Association standards from Snow, Weather, and Avalanche Guidelines, 4th Edition, 2022. The measurements were made by preparing a column of snow approximately the same surface area as the shear frame. The shear frame was carefully tapped into the top of the snow column until flush. The fishhook scale was attached to shear frame and pulled such that the frame released in 1 s or less. Max force was recorded from the fishhook scale. Shear strength was computed as the ratio of the max force and shear frame cross-sectional area. |
| Data Quality: |
Some spatial variability was apparent in snow properties based on unpublished compression strength measurements. Uncertainty in max force values were +/- 4 N, 1-sigma. Uncertainty in shear frame area is 0.01 cm2, 1-sigma.
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| File Format: |
Not defined
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Process overview
Independent Instruments
| Snow Shear Frame |
| Output Description | None |
No variables found.
Temporal Range
2024-05-15T00:00:00
2024-05-18T00:00:00
Geographic Extent
66.4800° |
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-46.3000° |
-46.3000° |
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66.4800° |