Results 141 to 150 of about 978 (179)
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SPIE Proceedings, 1989
The design, analysis, and performance of a small-angle scatterometer are presented. A dye-cell Gaussian apodized aperture is utilized to reduce the small-angle diffraction background. After the diffraction background is sufficiently reduced, the system scatter becomes the dominant noise in the instrument beam profile.
Steven J. Wein, William L. Wolfe
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The design, analysis, and performance of a small-angle scatterometer are presented. A dye-cell Gaussian apodized aperture is utilized to reduce the small-angle diffraction background. After the diffraction background is sufficiently reduced, the system scatter becomes the dominant noise in the instrument beam profile.
Steven J. Wein, William L. Wolfe
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The SeaSat-A satellite scatterometer
IEEE Journal of Oceanic Engineering, 1977This paper describes the methods used to develop performance requirements and design characteristics for the microwave scatterometer (SASS) ocean-surface wind sensor on the NASA SeaSat-A satellite. Wind vector measurement requirements from the SeaSat user community such as wind speed and direction accuracy, resolution cell size, grid spacing, and swath
W. Grantham +3 more
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On a satellite scatterometer as an anemometer
Journal of Geophysical Research: Oceans, 1983The SEASAT‐A satellite scatterometer (SASS) wind‐algorithm was tested against surface wind fields. Three classes of surface wind fields were used; point measurements, an isotach field over an intensively measured triangle with 200 km sides, and synoptic scale winds determined from pressure and temperature fields and a planetary boundary layer model ...
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Verification of scatterometer design
SPIE Proceedings, 2011Scatterometric applications demand strategies for the selection from the various basic scatterometer principles as well as detailed design rules to fit the final optical instrument, the data processing and user interface into the requirements of the application in scope.
Wenjing Zhao +2 more
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Seasat scatterometer observations of sea ice
IEEE Transactions on Geoscience and Remote Sensing, 1999Seasat I scatterometer data collected over the Beaufort Sea are analyzed and compared with a simple theoretical model that includes surface roughness and volume scattering. The values of the root-mean-square (rms) surface slope of roughness and the volume scattering albedo are adjusted to fit the data.
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The SeaWinds scatterometer instrument
Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium, 2002The SeaWinds scatterometer instrument is currently being developed by NASA/JPL, as a part of the NASA EOS Program, for flight on the Japanese ADEOS II mission in 1999. This Ku-band radar scatterometer will infer surface wind speed and direction by measuring the radar normalized backscatter cross-section over several different azimuth angles. This paper
C. Wu +7 more
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The SEASAT-A Satellite Scatterometer
OCEANS '76, 1976This report describes the methods used to develop performance requirements and design characteristics of a microwave scatterometer wind sensor planned for SeaSat-A. User requirements such as wind speed accuracy, resolution cell size, grid spacing, and swath width of the measurements formed the basis for defining instrument characteristics.
W. Grantham, E. Bracalente, W. Jones
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Progress in Scatterometer Application
Journal of Oceanography, 2002Progress in the scientific application of space-based scatterometer data over the past two decades is reviewed. There has been continuous improvement in coverage, resolution, and accuracy. Besides the traditional applications in weather and ocean-atmosphere interaction, which are based on ocean surface wind vectors, emerging applications over land and ...
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Calibration of RapidScat scatterometer
2017 IEEE Microwaves, Radar and Remote Sensing Symposium (MRRS), 2017RapidScat is a Ku-band scatterometer that flew onboard the International Space Station (ISS) between September 2014 and November 2016. RapidScat's primary objective had been global wind vector retrieval over sea surface from the measured normalized radar cross section (σ°).
Ruaa Alsabah, Ali Al-Sabbagh, Josko Zec
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The Scatterometer: Data and Applications
1990The application of a new class of data such as that furnished by a satellite scatterometer requires a basic understanding of the nature of the data. Here are examined the assumptions and techniques required to translate backscatter cross-section into surface stress, airsea fluxes, wind profiles and pressure fields.
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