OCR Text |
Show Introduction Two of the instruments described in this report have been in use for a number of years at Forest Service avalanche stations. The third, the temperature telemeter, was installed and tested at Squaw Valley during the winter of 1960- 61, and seems to work very satisfactorily with the teste so far. Purpose of this report is to provide a short description of these instruments and furnish sufficient technical data that they may be duplicated when needed at future stations yet to be established. It is not the intent here to make a full analysis of their behavior or discuss similar instruments reported in the literature. We do acknowledge the settlement gauge to be based, with some modifications, on the one originated at the Weissfluhjoch in Switzerland over twenty years ago. The snow collector is an original and strictly empirical design, justifying its continued existence by the fact that it works rather well for the limited purpose for which it was intended. The temperature telemeter uses standard circuitry, and is unique only in this application. Further details may be obtained from the Alta Avalanche Study Center. |