Summary & Purpose

Quantifying the mechanical properties of snow is crucial for various applications. Snow density alone can provide a rough estimate of mechanical properties, while direct observation of snow microstructure is necessary to accurately determine mechanical properties. We utilize a novel non-contacting laser ultrasound system (LUS), providing acoustic waveform measurements, to observe mechanical properties at the microscale. We investigated the temporal relationship between P-wave velocity, density, snow crystal type, and specific surface area (SSA). We created homogeneous snow samples, each composed of a single crystal type, compacted to a 250~$kg/m^3$ density. We measured acoustic wave propagation through these snow samples to observe changes in P-wave speed throughout metamorphism. We also measured SSA with the InfraSnow Sensor, as well as micromechanical properties with the SnowMicroPen. These observations allowed us to monitor changes in mechanical properties throughout sintering, with increases in elastic modulus temporally by a factor of 1-2 depending on crystal type.

Date of Publication or Submission

3-1-2024

DOI

https://doi.org/10.18122/cryogars_snow_data.2.boisestate

Funding Citation

This research is based upon work supported in part by the Cold Regions Research and Engineering Laboratory (CRREL) award #W913E520C0017.

Single Dataset or Series?

Single Dataset

Data Format

*.csv, *.mat, *.svd, *.pnt

File Size

181MB

Data Attributes

Ultrasonic wavefields in a time series through snow samples with associated InfraSnow SSA, and SMP vertical profiles.

Time Period

October 2023

Privacy and Confidentiality Statement

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Use Restrictions

Users are free to share, copy, distribute and use the dataset; to create or produce works from the dataset; to adapt, modify, transform and build upon the dataset as long as the user attributes any public use of the dataset, or works produced from the dataset, referencing the author(s) and DOI link. For any use or redistribution of the dataset, or works produced from it, the user must make clear to others the license of the dataset and keep intact any notices on the original dataset.

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BOISE STATE UNIVERSITY MAKES NO REPRESENTATIONS ABOUT THE SUITABILITY OF THE INFORMATION CONTAINED IN OR PROVIDED AS PART OF THE SYSTEM FOR ANY PURPOSE. ALL SUCH INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. BOISE STATE UNIVERSITY HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH REGARD TO THIS INFORMATION, INCLUDING ALL WARRANTIES AND CONDITIONS OF MERCHANTABILITY, WHETHER EXPRESS, IMPLIED OR STATUTORY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT.

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