PROGRESS REPT. JUNE 27, 1952-JUNE 27, 1953 ON Contract DA-11-190-ENG-3
CALIFORNIA UNIV BERKELEY INST OF ENGINEERING RESEARCH
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Research is reported on projects to determine 1 spectral characteristics of wet and dry snow from 0 deg to -60 deg C, 2 radiant characteristics of paints and materials which might be used in arctic conditions, and 3 criteria for arctic identification and camouflage materials. Descriptions and discussions are included of instruments being used or designed and techniques for measuring reflectances and reflectinities of materials. These include a heated-cavity reflectometer, a paraboloid reflectometer design, a 2- radiometer technique for measurements at or near ambient temperatures, a portable field emissivity meter, and a solarimeter and albedometer for measuring the transmission and albedo of snow to solar radiation. Reflectivity curves 1 to 15 microns are included for polished Phosphor Bronze Kovar polished Mo, Zn, Cu, Ni, and Al commercial-finish Al roughened, polished Al Al foil flat black paint on polished Al VNCH-coated Bakelite Corp Al foil galvanized Fe black Bakelite Tophet-A Nichrome ribbon black, red, and clear Glyptal red and clear Pedigree MgO and TiO2 on polished Al and on a flat, black coating on Al and flat white paint on polished Al.
- Snow, Ice and Permafrost
- Test Facilities, Equipment and Methods