Capabilities > Instruments

NFOV

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nfov > Narrow Field of View Zenith RadiometerInstrument Type(s) > Baseline • Guest

The narrow-field-of-view zenith radiometer (NFOV) is a ground-based radiometer that looks straight up. As the name states, the field of view of the instrument is narrow, thus permitting the measurement of the downwelling zenith radiance.

The instrument outputs a time series of 1-sec observations of the zenith spectral radiance measured at a wavelength of 869 nm. Data from the instrument have many uses; for example, the internal structure of clouds can be characterized by examining a time series of the radiance data.

Primary Derived Measurements

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Locations

Facility Name Start Date
Houston, TX; AMF1 (main site for TRACER) 2021-04-14

2020

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, 102(3), 10.1175/BAMS-D-19-0227.1.

2019

Liu J and Z Li. 2019. "Aerosol properties and their influences on low warm clouds during the Two-Column Aerosol Project." Atmospheric Chemistry and Physics, 19(14), 10.5194/acp-19-9515-2019.

2018

Liu J and Z Li. 2018. "Significant Underestimation in the Optically Based Estimation of the Aerosol First Indirect Effect Induced by the Aerosol Swelling Effect." Geophysical Research Letters, 45(11), 10.1029/2018GL077679.
Research Highlight

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.

2017

Wood R, J Stemmler, J Rémillard, and A Jefferson. 2017. "Low-CCN concentration air masses over the eastern North Atlantic: Seasonality, meteorology, and drivers." Journal of Geophysical Research: Atmospheres, 122(2), 10.1002/2016JD025557.
Research Highlight

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