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CMA Albedometers

CMA Albedometers
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Albedometers FOR THE PRECISE MEASUREMENT OF GLOBAL AND REFLECTED RADIATION Specications to ISO 9060:1990 and IEC 60904 standards Measure incoming and reected solar radiation with one convenient instrument Used around the world in meteorology, hydrology and climate research Easily portable for eld research Introduction The albedo of a surface is the extent to which it diffusely reects short-wave radiation from the sun in the wavelength range from 300 to 3000 nanometers (nm). It is the ratio of the reected radiation to the incoming radiation and varies from 0 (dark) to 1 (bright). As an indication, albedo is about 0.15 for grass, 0.5 for dry sand and 0.8 for fresh snow. An Albedometer consists of two pyranometers. The upper sensor measures incoming global solar radiation and the lower sensor measures solar radiation reected from the surface below. When the two signal outputs have been converted to irradiance in W/m², the albedo can be simply calculated. Kipp & Zonen has been manufacturing pyranometers for over 75 years and our CMA albedometers share this experience and technology. They comply with the requirements of ISO 9060:1990 and are fully traceable to the World Radiometric Reference (WRR) in Davos, Switzerland, where Kipp & Zonen instruments form part of the World Standard Group.

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Other Congurations Kipp & Zonen albedometers have been developed for use in all environments, from the Antarctic to deserts. They are installed around the world for meteorology, hydrology, climate research, and agriculture. A particular use is for measuring the changing albedo of glaciers, snow and ice elds in climate change research. An entry level albedometer can be congured by using two CMP 3 pyranometers and the accessory mounting rod. Highest performance albedometers can be assembled using two CMP 21 or CMP 22 pyranometers and a CMF 1 mounting xture. Ventilated setups are also...

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