4.6 x 7 inches
Where to Buy
Our Snow Crystal Card provides a stable base and grids for examining snow crystals. It also doubles as an Inclinometer by using the attached string and weight.
The Snow Crystal Card has laser etched textured 1 mm, 2 mm and 3 mm grids, inclinometer increments of 1 degree, crystal and snow pit "prompt legends" and centimeter and inch rulers.
During production, the high quality aluminum is partially textured and then anodized flat black for oxidation, contrast and for easy crystal identification. The metal has low thermal conductivity to minimize melting and preserve the crystals.
The Snow Crystal Card, a basic snow safety tool that will help in making an informed decision about the snowpack, is etched with information on snow crystal types.
Here's what other sites are saying:
More than just a simple grid snow card, the Brooks-Range Snow Crystal Card is recommended by the AIARE and designed to aid professionals with snow study, slope measurement, and snow stability tests. Etched with a fine grid, vital snow-study information, and sized to fit in a thigh pocket, this metal card fits easily in your field book and withstands the torture of backcountry travel season after season.
"Brooks-Range Mountaineering Avalanche Safety Crystal Card 16219000. Expansive 1mm 2mm and 3mm grids are laser etched for precision when estimating snow crystal sizes. Because each grid has a textured anodized flat black surface crystals stay put and a degree of relief is achieved. Though aluminum it has a low thermal conductivity to minimize melting and preserve the crystals. Dimensions and guidelines for performing Rutschblock Stuffblock Compression and Shovel Shear Tests are etched on the backside. Snow crystal terminology is etched on the front side to aid in proper recording of conditions in a field book. By using the attached string and weight the Snow Crystal Card doubles as an inclinometer with one-degree increments of resolution. Sized at approximately 4 1/2 x 7 it fits easily in your field book pocket and the Brooks-Range Field Organizer. Inclinometer string and instructions included."