Studies on shielded snow gages

TitleStudies on shielded snow gages
Publication TypeConference Proceedings
Year of Conference1949
AuthorsWarnich, C. C.
Conference Name17th Annual Western Snow Conference
Series TitleProceedings of the 17th Annual Western Snow Conference
Date PublishedApril 1949
PublisherWestern Snow Conference
Conference LocationDenver, Colorado
KeywordsResearch, Snow gages, Snow storm simulation

Cooperative research was conducted by the University of Idaho, the Bureau of Reclamation, and other agencies to improve high altitude precipitation gages and their windshields. A smoke wind tunnel was built at the University of Idaho to study the action of wind around gages. A ventilating fan produced wind velocities of 20 Mi./hr. and smoke was generated by forcing dry air through a bottle of TiCl4 and combining the vapor with moist air. One-quarter scale models of Sacramento-type and Standpipe-type gages with and without shields were placed before the approach section to study the path of the airstream. Field studies were started September 1948 near Mullen Pass on the Idaho-Montana border. Two standpipe gages, two Sacramento storage gages and one Stevens-type Q12 recording winter-precipitation gage, equipped with various shields are being used. Results are as yet inconclusive.Discussion by J.C. Stevens.