Results 301 to 310 of about 278,573 (333)

Brightness temperature of extended targets

ICMMT'98. 1998 International Conference on Microwave and Millimeter Wave Technology. Proceedings (Cat. No.98EX106), 2002
A method of establishing formulas for calculating brightness temperature of extended targets at microwave frequency is introduced in this paper. The formulas are obtained through the statistical process of a large amount of measured data. The formulas for concrete road, asphalt road, and crushed stone are presented, which are established by this method.
null Li Qingxia, null Guo Wei, null Zhang Zuying, null Wen Guanghua   +3 more
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Calibration of RapidScat Brightness Temperature

2018 IEEE 15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad), 2018
NASA RapidScat is the first satellite scatterometer that flown in non-Sun-synchronous orbit. Its unique orbit enabled collocated measurements with multiple satellite remote-sensing instruments that mostly fly in Sun-synchronous orbits. RapidScat's primary mission was retrieval of global ocean wind vectors from normalized radar backscatter measurements.
Ali Al-Sabbagh, Ruaa Alsabah, Jasko Zec
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Brightness Temperature Reconstruction Using BGI

IEEE Transactions on Geoscience and Remote Sensing, 2008
This paper departs from the popular usage of the Backus-Gilbert inversion (BGI) method as a tool for inversion of antenna temperature measurements in microwave radiometry. The BGI method is applied in this paper to enhance the information content of an existing set of oversampled brightness-temperature (TB) data. The purpose is to isolate the inversion
P. Chakraborty, A. Misra, T. Misra, S.S. Rana   +3 more
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Brightness temperature ratios: analysis of typical behaviour

1995 International Geoscience and Remote Sensing Symposium, IGARSS '95. Quantitative Remote Sensing for Science and Applications, 2002
In the framework of the Olympus and Italsat satellites experiment, the Politecnico di Milano carried out a campaign aiming to measure brightness temperatures at different frequencies and to estimate some quantities, as water vapour (V), liquid water integrated content (L) and atmospheric attenuation, related to absorption phenomena of interest for ...
Bosisio AV, Capsoni C
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Venus: A Map of Its Brightness Temperature

Science, 1963
The 200-inch Hale telescope has been used to make high-resolution maps of the brightness temperature of Venus at wavelengths 8 to 14 microns. Resolution of about 1/30 of the disk reveals a general symmetry about the plane of the orbit, no day-night temperature effects, and a transient temperature anomaly in the southern hemisphere.
Murray, Bruce C., Wildey, Robert L., Westphal, James A.   +2 more
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Salinity retrieval from SMOS brightness temperatures

IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477), 2004
The neural network methodology is applied to the sea surface salinity retrieval from SMOS brightness temperatures. The direct model for simulating the brightness temperatures is the Small Slope Approximation model (SSA). Different cases are compared to analyze the retrieval quality.
S. Labroue, E. Obligis, C. Boone, S. Philipps   +3 more
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Brightness temperature for 166 radio sources

Research in Astronomy and Astrophysics, 2009
Using the database of the University of Michigan Radio Astronomy Observatory (UMRAO) at three radio frequencies (4.8, 8 and 14.5 GHz), we determined the short-term variability timescales for 166 radio sources. The timescales are 0.15 d (2007+777) to 176.17 d (0528–250) with an average timescale of Δ t obs = 17 . 1  16 .
Jun-Hui Fan, Yong Huang, Yu-Hai Yuan, Jiang-He Yang, Yi Liu, Jun Tao, Ying Gao, Tong-Xu Hua, Rui-Guang Lin, Jiang-Shui Zhang, Jing-Yi Zhang, Yi-Ping Qin   +11 more
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Brightness Temperature over the Indian Subcontinent

Journal of the Geological Society of India, 2000
Abstract Special Sensor Microwave/Imager (SSM/I) onboard the Defence Meteorological Satellite measures brightness temperature. Microwave remote sensing sensors have the capabilities of sensing the Earth surface through cloud cover day and night. Using these sensors, day to day monitoring of Earth, ocean and snow covered regions can be
Nrusingha C. Mishra, Prasanjit Dash, Ramesh P. Singh   +2 more
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HIRAD Brightness Temperature Image Geolocation Validation

IEEE Geoscience and Remote Sensing Letters, 2017
The Hurricane Imaging Radiometer (HIRAD) is an airborne microwave radiometer developed to provide wide-swath hurricane surface wind speed and rain rate imagery for scientific research. This letter presents a geometric evaluation of the brightness temperature (Tb) images produced by HIRAD for high-contrast land/water targets.
Saleem Sahawneh, W. Linwood Jones, Sayak K. Biswas, Daniel Cecil   +3 more
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