The MFRSR-Column Intensive Properties (CIP) value-added product (VAP) has been developed for estimating the microphysical (e.g., size distribution) and optical (e.g., single-scattering albedo and asymmetry factor) properties of aerosols. The size distribution retrieval is based on MFRSR measurements of the direct irradiance at five wavelengths (415, 500, 615, 673 and 870 nm) and assumptions regarding the shape of the aerosol size distribution (a combination of two lognormal distributions) and the real refractive index. The optical properties estimation is based on the retrieved size distribution, measured direct and diffuse irradiances, assumed real refractive index and spectral values of surface albedo. To reduce the potential impact of the surface albedo uncertainties on the retrieved optical properties, the current version utilized the direct and diffuse irradiances at two wavelengths (415 and 500 nm) where surface albedo is quite small and depends weakly on observational conditions. The assumption regarding the real refractive index is based on available independent measurements.
mfrsrcip > MFRSR Column Intensive PropertiesVAP Type(s) > Baseline • Evaluation
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Sivaraman S. 2013. ARM Climate Research Facility Quarterly Value-Added Product Report January 1–March 31, 2013. Ed. by U.S. Department of Energy, DOE/SC-ARM-13-010.
Sivaraman C. 2013. ARM Climate Research Facility Quarterly Value-Added Product Report October 01–December 31, 2012. U.S. Department of Energy. DOE/SC-ARM-13-002.
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