Capabilities > Instruments

MFRSR

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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.

Measurements

Aerosol optical depth Shortwave broadband diffuse downwelling irradiance Shortwave narrowband direct normal irradiance
Aerosol optical properties Shortwave narrowband diffuse downwelling irradiance Shortwave narrowband total downwelling irradiance
Ozone Column Abundance Shortwave narrowband direct downwelling irradiance Shortwave spectral diffuse downwelling irradiance

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Peckham, OK (Extended) 2016-04-07
Tryon, OK (Extended) 2011-09-28
Omega, OK (Extended) 2011-11-01
Pawnee, OK (Extended) 2015-11-13
Morrison, OK (Extended) 2015-11-12
Newkirk, OK (Extended) 2011-09-27
Waukomis, OK (Extended) 2011-11-02
Byron, OK (Extended) 1997-08-23
Marshall, OK (Extended) 2011-10-18
Maple City, KS (Extended) 2011-09-28
Graciosa Island, Azores, Portugal 2014-04-10
Ashton, KS (Extended) 1998-02-06
Ringwood, OK (Extended) 1997-08-26
Houston, TX; AMF1 (main site for TRACER) 2020-12-29
Pawhuska, OK (Extended) 1997-11-06

2021

Riihimaki L, S McFarlane, and C Sivaraman. 2021. Droplet Number Concentration Value-Added Product. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-140.

Wu X, K Balmes, and Q Fu. 2021. "Aerosol direct radiative effects at the ARM SGP and TWP Sites: Clear skies." Journal of Geophysical Research: Atmospheres, 126(5), e2020JD033663, 10.1029/2020JD033663.

Geerts B, G McFarquhar, L Xue, M Jensen, P Kollias, M Ovchinnikov, M Shupe, P DeMott, Y Wang, M Tjernstrom, P Field, S Abel, T Spengler, R Neggers, S Crewell, M Wendisch, and C Lupkes. 2021. Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-001.

2020

Vountas M, K Belinska, V Rozanov, L Lelli, L Mei, S Jafariserajehlou, and J Burrows. 2020. "Retrieval of aerosol optical thickness and surface parameters based on multi-spectral and multi-viewing space-borne measurements." Journal of Quantitative Spectroscopy and Radiative Transfer, 256, 10.1016/j.jqsrt.2020.107311.

Zhang C, S Xie, and C Tao. 2020. ARM Data-Oriented Metrics and Diagnostics Package for Climate Model Evaluation. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-TR-202.

Riihimaki L, C Flynn, A McComiskey, D Lubin, Y Blanchard, J Chiu, G Feingold, D Feldman, J Gristey, C Herrera, G Hodges, E Kassianov, S LeBlanc, A Marshak, J Michalsky, P Pilewskie, S Schmidt, R Scott, Y Shea, K Thome, R Wagener, and B Wielicki. 2020. "The Shortwave Spectral Radiometer for Atmospheric Science: Capabilities and Applications from the ARM User Facility." Bulletin of the American Meteorological Society, , 10.1175/BAMS-D-19-0227.1. ONLINE.

Marquardt Collow A, M Miller, L Trabachino, M Jensen, and M Wang. 2020. "Radiative heating rate profiles over the southeast Atlantic Ocean during the 2016 and 2017 biomass burning seasons." Atmospheric Chemistry and Physics, 20(16), 10.5194/acp-20-10073-2020.
Research Highlight

Kassianov E, E Cromwell, Y Shi, J Monroe, L Riihimaki, and C Flynn. 2020. Quality Control Aerosol Optical Depth Value-Added Product Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-247.

Berg L, C Long, E Kassianov, D Chand, S Tai, Z Yang, L Riihimaki, S Biraud, J Tagestad, A Matthews, A Mendoza, F Mei, J Tomlinson, and J Fast. 2020. "Fine Scale Variability of Observed and Simulated Surface Albedo over the Southern Great Plains." Journal of Geophysical Research: Atmospheres, 125(7), e2019JD030559, 10.1029/2019JD030559.
Research Highlight

Marchand R. 2020. Macquarie Island Cloud and Radiation Experiment (MICRE) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-005.

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