Dataset
ICECAPS-MELT: Manual shear strength from a 1-m snow profile in SW Greenland (August 2024)
Abstract
Shear strength (kPa) was measured in a 1-m deep snow profile from southwest Greenland (Camp Raven, 66.48 N, 46.30 W, 2331 m asl) during Summer 2024. The snow profile measurements were made adjacent to an autonomous atmospheric and glaciological platform (the SLEIGH) as part of the ICECAPS-MELT (Integrated Characterization of Energy, Clouds, Atmospheric state, and Precipitation - MEasurements along Lagrangian Transects) experiment. This profile was made 2-3 m away from the SLEIGH.
This work was US-led, US-UK collaboration co-funded by the US National Science Foundation and the UK National Environment Research Council.
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: |
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence(s): http://creativecommons.org/licenses/by/4.0/ When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| 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Some spatial variability was apparent in snow properties based on unpublished compression strength measurements.
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| File Format: |
Data are BADC-CSV formatted
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Related Documents
| 100 cm2 shear frame |
| 250 cm2 shear frame |
Process overview
Instrument/Platform pairings
| Snow Shear Frame | Deployed on: Camp Raven, Greenland |
| Output Description | None |
- units: cm
- long_name: depth
- var_id: 2
- var_id: 3
- units: N
- long_name: force
- units: m2
- var_id: 4
- long_name: frame size
- units: 1
- long_name: index
- var_id: 1
- units: 1
- var_id: 6
- long_name: notes
- units: N m-2
- var_id: 5
- long_name: shearStrength
Co-ordinate Variables
Temporal Range
2024-08-21T00:00:00
2024-08-22T00:00:00
Geographic Extent
66.4800° |
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-46.3000° |
-46.3000° |
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66.4800° |