Results 21 to 30 of about 5,074,442 (338)
An approximate model for the microwave brightness temperature of the sea
International Journal of Remote Sensing, 1987 Abstract A modified two-scale model is proposed for scattering and emissivity calculations for certain classes of random rough surfaces. It is based on an approach by Burrows and by Brown, but it has been extended to bistatic scattering by lossy dielectric surfaces, and it incorporates modified Fresnel reflection coefficients and a simple correction ...
Guissard, Albert, Sobieski, Piotr
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Constraining Microwave Brightness Temperatures by Radar Brightband Observations
Journal of Atmospheric and Oceanic Technology, 2003 Multichannel microwave sensors make it possible to construct physically based rainfall retrieval algorithms. In these schemes, errors arising from the inaccuracy of the physical modeling of the cloud system under observation have to be accounted for. The melting layer has recently been identified as a possible source of bias when stratiform events are ...
Battaglia A. +3 more
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The influence of tree transmissivity variations in winter on satellite snow parameter observations
International Journal of Digital Earth, 2021 The ability to correct for the influence of forest cover is crucial for retrieval of surface geophysical parameters such as snow cover and soil properties from microwave remote sensing.
Qinghuan Li +5 more
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暴雨灾害, 2020 Based on data of FY-3 satellite microwave hygrometer and conventional observation, microwave observational characteristics of convective clouds during a heavy precipitation event from Giuzhou to Hubei province in 2016 were analyzed. The results show that
Pingping ZHANG +3 more
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Retrieval of Desert Microwave Land Surface Emissivity Based on Machine Learning Algorithms
Remote Sensing, 2023 Based on the community radiative transfer model, ensemble tree-based random forest algorithm, and extreme gradient boosting tree algorithm, this study established a random forest retrieval model (RF) and an extreme gradient boosting tree retrieval model (
Jiangtao Li +5 more
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Downscaling microwave brightness temperatures using self regularized regressive models [PDF]
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015 A novel algorithm is proposed to downscale microwave brightness temperatures ($\mathrm{T_B}$), at scales of 10-40 km such as those from the Soil Moisture Active Passive mission to a resolution meaningful for hydrological and agricultural applications. This algorithm, called Self-Regularized Regressive Models (SRRM), uses auxiliary variables correlated ...
Subit Chakrabarti +3 more
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Satellite-borne active and passive instruments for remote sensing of heavy rain in China: A review
暴雨灾害, 2019 In this paper, the domestic research results of heavy rain in China by using instruments of spectral remote sensing, passive microwave remote sensing and active microwave radar on-board satellite are reviewed.
Yunfei FU
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The microwave brightness temperature spectrum of the quiet sun
The Astrophysical Journal, 1991 New measurements of the microwave brightness temperature spectrum of the center of the quiet sun, acquired at Owens Valley over several months during the 1986-1987 sunspot minimum, are reported. The resulting brightness temperature spectra are consistent with previous data, but exhibit much less frequency-to-frequency scatter. The corona is fitted well
H. Zirin, B. M. Baumert, G. J. Hurford
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Modeling time series of microwave brightness temperature in Antarctica [PDF]
Journal of Glaciology, 2009 AbstractThis paper aims to interpret the temporal variations of microwave brightness temperature (at 19 and 37GHz and at vertical and horizontal polarizations) in Antarctica using a physically based snow dynamic and emission model (SDEM). SDEM predicts time series of top-of-atmosphere brightness temperature from widely available surface meteorological ...
Picard, Ghislain +4 more
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Evidence of an increase in the microwave brightness temperature of Uranus
The Astrophysical Journal, 1978 Measurements are reported which indicate that the microwave brightness temperature of Uranus near 3 cm wavelength has increased by about 35% in the past decade. It is suggested that changes of this magnitude could be caused by seasonal or latitudinal variations of the microwave opacity of the Uranus atmosphere.
M. J. Klein, J. A. Turegano
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