Minimizing Measurement Errors in Automated Snowpack Profile Temperature Measurements
Title | Minimizing Measurement Errors in Automated Snowpack Profile Temperature Measurements |
Publication Type | Conference Proceedings |
Year of Conference | 1992 |
Authors | Sauter, K. A., and Tanner B. D. |
Conference Name | 60th Annual Western Snow Conference |
Series Title | Proceedings of the 60th Annual Western Snow Conference |
Date Published | April 1992 |
Publisher | Western Snow Conference |
Conference Location | Jackson Hole, Wyoming |
Keywords | Snowpack profile temperatures, Thermal conductance, Thermocouple |
Abstract | Snowpack profile temperatures were measured hourly during the winter season in the Bear River Mountains of northern Utah. A monofilament fish line ladder was constructed to support 20 junction chromel-constantan (Type E) thermocouple (TC) string in the snowpack. To minimize conductance, 0.25 mm TC wire was routed along the ground surface, up and horizontally across 10 cm spaced ladder rungs. Hourly, a datalogger measured each TC junction 10 times and calculated an average temperature.During the season, a maximum cavitation of 1 cm in diameter and 2 in depth was observed around the mono-filament support structure. Under isothermal conditions (Tsnow = 0 degrees C), TC temperatures were within +0.05 C of 0.0 C. Effects from surface conductance was evident in upper snowpack temperatures to an approximate depth of 20 cm. |
URL | sites/westernsnowconference.org/PDFs/1992SauterA.pdf |