The multifilter radiometer (MFR) is simply the head from a multifilter rotating shadowband radiometer (MFRSR) mounted on a tower pointing at the surface.
Like the MFRSR, it has six narrowband channels (415, 500, 615, 673, 870, and 940 nm) and one broadband channel. Pointing the head at the surface provides spectral measurements of reflected irradiance. Measurements are taken every 20 seconds, with no averaging performed.
| Facility Name | Instrument Start Date |
|---|---|
| Central Facility, Lamont, OK | 1994-03-26 |
| Central Facility, Barrow AK | 1998-03-18 |
| Graciosa Island, Azores, Portugal | 2014-04-14 |
| Oliktok Point, Alaska; AMF3 | 2015-08-01 |
| Houston, TX; AMF1 (main site for TRACER) | 2021-01-16 |
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.
Mei F, D Dexheimer, J Fast, M Diao, B Geerts, A Bucholtz, L Riihimaki, C Flynn, T Thornberry, T Campos, S Springston, C Kuang, J Tomlinson, and B Schmid. 2020. ARM Aerial Instrument Workshop Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-20-010.
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
Varble A, S Nesbitt, P Salio, E Avila, P Borque, P DeMott, G McFarquhar, S van den Heever, E Zipser, D Gochis, R Houze, M Jensen, P Kollias, S Kreidenweis, R Leung, K Rasmussen, D Romps, and C Williams. 2019. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-028.
Zuidema P, M Alvarado, C Chiu, S DeSzoeke, C Fairall, G Feingold, A Freedman, S Ghan, J Haywood, P Kollias, E Lewis, G McFarquhar, A McComiskey, D Mechem, T Onasch, J Redemann, D Romps, D Turner, H Wang, R Wood, S Yuter, and P Zhu. 2018. Layered Atlantic Smoke Interactions with Clouds (LASIC) Field Campaign Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-18-018.
Williams IN, WJ Riley, LM Kueppers, SC Biraud, and MS Torn. 2016. "Separating the effects of phenology and diffuse radiation on gross primary productivity in winter wheat." Journal of Geophysical Research: Biogeosciences, 121(7), 10.1002/2015jg003317.
Biraud S, M Torn, C Miller, A Sedlacek, C Sweeney, S Wofsy, G de Boer, M Shupe, and C Kuang. 2015. ARM-ACME V: ARM Airborne Carbon Measurements V on the North Slope of Alaska Science and Implementation Plan. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-15-032.
Kassianov E, J Barnard, C Flynn, L Riihimaki, J Michalsky, and G Hodges. 2014. "Areal-Averaged Spectral Surface Albedo from Ground-Based Transmission Data Alone: Toward an Operational Retrieval." Atmosphere, 5(3), 10.3390/atmos5030597.
Research Highlight
Kassianov E, J Barnard, M Pekour, L Berg, J Michalsky, K Lantz, and G Hodges. 2013. "Do diurnal aerosol changes affect daily average radiative forcing?" Geophysical Research Letters, 40(12), 10.1002/grl.50567.
Fang L, Y Yu, H Xu, and D Sun. 2013. "New retrieval algorithm for deriving land surface temperature from geostationary orbiting satellite observations." IEEE Transactions on Geoscience and Remote Sensing, 52(2), 10.1109/tgrs.2013.2244213.