Narrow Field of View Zenith Radiometer (NFOV)
Instrument Categories: Radiometric, Cloud Properties
General Overview
![Picture of the Narrow Field of View Zenith Radiometer (NFOV)](https://webarchive.library.unt.edu/web/20090508174149im_/http://www.arm.gov/instruments/images/nfov.jpg)
The Narrow Field of View Zenith Radiometer (NFOV) is a ground-based radiometer that looks straight up. As implied by the name, the field of view of the instrument is narrow, thus permitting the measurement of the downwelling zenith radiance. The output of the instrument consists of a time series of 1-sec observations of the zenith spectral radiance. The radiance is measured at a wavelength of 869 nm. Data from the instrument has many uses; for example, the internal structure of clouds may be characterized by examining a time series of the radiance data.
Primary Measurements Taken
The following measurements are those considered scientifically relevant. Refer to the netCDF File Header Descriptions (Data Object Design Files) for the list of all available measurements, including those recorded for diagnostic or quality assurance purposes.
Available Datastreams
Sites / Facilities
Note: Click the "" to expand/collapse the list.
- Southern Great Plains (SGP)
- Central Facility, Lamont, OK (C1)
- ARM Mobile Facility (FKB)
- Black Forest, Germany (M1)
- ARM Mobile Facility (HFE)
- Shouxian, Anhui, China (M1)
- ARM Mobile Facility (PYE)
- Point Reyes, CA (M1)
Mentor(s)
Gary Hodges
(303) 497-6460
Gary.Hodges@noaa.gov