Atmospheric Radiation Measurement Climate Research Facility US Department of Energy

mfrsr > Multifilter Rotating Shadowband RadiometerInstrument Type(s) > Baseline • Guest

The visible multifilter rotating shadowband radiometer (MFRSR) is a passive instrument that measures global and diffuse components of solar irradiance at six narrowband channels and one open, or broadband, channel. Direct irradiance is not a primary measurement, but is calculated using diffuse and global measurements.

To collect one data record, the MFRSR takes measurements at four different shadowband positions. The first measurement is taken with the shadowband in the nadir (home) position. The next three measurements are, in order, the first side-band, sun-blocked, and second side-band. The side-band measurements are used to correct for the portion of the sky obscured by the shadowband. The nominal wavelengths of the narrowband channels are 415, 500, 615, 673, 870, and 940 nm.

From such measurements, the atmosphere’s aerosol optical depth at each wavelength can be inferred. In turn, these optical depths may be used to derive information about the column abundances of ozone and water vapor, as well as aerosol and other atmospheric constituents.


  • Fixed
  • AMF1
  • AMF2
  • AMF3

Data Details

Contact Mikhail Alexandrov
Resource(s) Data Directory
Content time range 21 October 1996 - 27 June 2022


Geerts B, S Giangrande, G McFarquhar, L Xue, S Abel, J Comstock, S Crewell, P DeMott, K Ebell, P Field, T Hill, A Hunzinger, M Jensen, K Johnson, T Juliano, P Kollias, B Kosovic, C Lackner, E Luke, C Lüpkes, A Matthews, R Neggers, M Ovchinnikov, H Powers, M Shupe, T Spengler, B Swanson, M Tjernström, A Theisen, N Wales, Y Wang, M Wendisch, and P Wu. 2022. "The COMBLE campaign: a study of marine boundary-layer clouds in Arctic cold-air outbreaks." Bulletin of the American Meteorological Society, , 10.1175/BAMS-D-21-0044.1.


Turner DD, C Lo, Q Min, D Zhang, and K Gaustad. 2021. Cloud Optical Properties from the Multi-filter Shadowband Radiometer (MFRSRCLDOD): An ARM Value-Added Product. Ed. by Robert Stafford, U.S. Department of Energy. DOE/SC-ARM/TR-047.

Russell LM, D Lubin, I Silber, E Eloranta, J Muelmenstaedt, S Burrows, A Aiken, D Wang, M Petters, M Miller, A Ackerman, A Fridlind, M Witte, M Lebsock, D Painemal, R Chang, J Liggio, and M Wheeler. 2021. Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-009. 10.2172/1804710.

Shupe M, D Chu, D Costa, C Cox, J Creamean, G de Boer, K Dethloff, R Engelmann, M Gallagher, E Hunke, W Maslowski, A McComiskey, J Osborn, O Persson, H Powers, K Pratt, D Randall, A Solomon, M Tjernstrom, D Turner, J Uin, T Uttal, J Verlinde, and D Wagner. 2021. Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-007. 10.2172/1787856.

McComiskey A, S Springston, and C Flynn. 2021. ARM Aerosol Measurement Science Group 2019 Strategic Planning Workshop Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-010. 10.2172/1811679.

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