Sample Test Data and Results Winter 2018 | 2019
Results of manual hand hardness tests overlayed on snow profile graphs generated from a 1-2 second probe of the Scope.
The following six snow profiles are only a selection of our data, meant to represent a wide selection of snow conditions from a variety of locations, including the Wasatch, Tetons, Beartooths, and Selkirks.
A few things are important to note when comparing hand hardness data to Scope profiles:
- 1.All of these charts were generated with the same processing algorithm, meaning that data was not manipulated to match individual hand hardness profiles.
- 2.The scope profile data is much more detailed than a hand hardness pit, collecting one hardness value per mm of depth. This means it picks up many minor layers and grain boundaries that are not identified in a hand hardness profile, giving a more accurate picture of the snowpack.
- 3.Hand Hardness profiles have by their nature a large amount of human error. There is opportunity for minor layers to be missed in a hand hardness profile, and potential for large variation in absolute hardness estimations depending on the practitioner. What should be compared is the general trend in hardness and critical layers, not so much the absolute hardness values.
- 4.Several of the scope profiles show a very hard layer at the ground that is not identified in the hand hardness profile. This is actually the probe picking up a mud layer at the ground and should be ignored. We are working on filtering this out in processing.