The MultiFilter Rotating Shadowband Radiometer
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The MFRSR infers the solar beam intensity by making successive global and diffuse measurements and computing their difference. In this way it simulates measurements of a sun photometer. In processing the raw data, the cosine response of the instrument is accounted for, thus allowing for accurate calibration using the Langley method. |
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| MFRSR channels are nominally 415, 500, 614. 670, 868, and 940 nm, although each MFRSR has unique measurement channels that may be up to 4 nm different than the nominal values. The actual measurement wavelengths are used in the SURFRAD algorithms. The 940-nm channel is not processed for AOD because of its high sensitivity to water vapor. |
