A scatterometer or diffusionmeter is a scientific instrument to measure the return of a beam of light or radar waves scattered by diffusion in a medium such as air. Diffusionmeters using visible light are found in airports or along roads to measure horizontal visibility. Radar scatterometers use radio or microwaves to determine the normalized radar cross section (σ0, "sigma zero" or "sigma naught") of a surface. They are often mounted on weather satellites to find wind speed and direction, and are used in industries to analyze the roughness of surfaces.
A scatterometer or diffusionmeter is a scientific instrument to measure the return of a beam of light or radar waves scattered by diffusion in a medium...
The NASA QuikSCAT (Quick Scatterometer) was an Earth observation satellite carrying the SeaWinds scatterometer. Its primary mission was to measure the...
agencies that are issuing estimates on the same system. The ASCAT is a scatterometer used by the MetOp satellites to map the wind field vectors of tropical...
altimeter to measure spacecraft height above the ocean surface Microwave scatterometer to measure wind speed and direction Scanning multichannel microwave...
later, the depression intensified into Tropical Storm Irma, based on scatterometer data and satellite estimates. With warm sea surface temperatures and...
instrumented runway visual range (IRVR), which is measured by devices called scatterometers which provide simplified installation as they are integrated units and...
radiometer with CCD detectors, was also produced by NASDA. The NASA Scatterometer (NSCAT), developed with the Jet Propulsion Laboratory (JPL), used fan-beam...
"Characteristics of the Yamase Winds over Oceans around Japan Observed by the Scatterometer-Derived Ocean Surface Vector Winds". Journal of the Meteorological Society...
moved rapidly westward under the influence of a subtropical ridge. Scatterometer passes indicating a closed circulation confirmed that Tropical Storm...
McKay (right) at Kennedy Space Center with ISS-RapidScat, the radar scatterometer which was built at JPL. Specifically, they were testing the rotating...
Salmi A., Penttilä A., Kassamakov I., Hæggström E., Muinonen K. 4π Scatterometer: A new technique for understanding the general and complete scattering...
Tehuantepec. These winds can be observed on satellite pictures such as scatterometer wind measurements, they influence waves which then propagate as swell...
active instruments ranging in design from imagers and sounders to a scatterometer and a radio-occultation instrument. The satellite service module is...
resting ocean wind stress. Data for relative wind stress is obtained from scatterometers. These accurately represent the relative wind stress as they measure...
Upon his return to JPL, he became the project manager for the NASA Scatterometer (NSCAT) project aimed at space-based radar measurement of winds over...
(Scanning scatterometer) on Oceansat-2 became dysfunctional after its life span of four-and-a-half years. SCATSAT carries a Ku-band scatterometer similar...
a tropical wave just offshore the west coast of Africa on July 15. Scatterometer data early on July 21 indicated that a small, but well-defined low-pressure...
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