Results 251 to 260 of about 1,082,685 (298)
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Journal of Meteorology, 1945
Abstract In this paper a brief discussion of the use of radar in meteorology is presented. The appearance of various weather phenomena on radar scopes is described and a number of radar photographs of thunderstorms, cold fronts and typhoons is included.
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Abstract In this paper a brief discussion of the use of radar in meteorology is presented. The appearance of various weather phenomena on radar scopes is described and a number of radar photographs of thunderstorms, cold fronts and typhoons is included.
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Physics Today, 2015
Dual-polarization radar promises to improve the modeling of convective storms. Dual-polarization radar promises to improve the modeling of convective storms.
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Dual-polarization radar promises to improve the modeling of convective storms. Dual-polarization radar promises to improve the modeling of convective storms.
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Proceedings of the IEEE, 1979
The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
R.J. Doviak, D.S. Zrnic, D.S. Sirmans
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The Doppler weather radar and its signals are examined from elementary considerations to show the origin and development of useful weather echo properties such as signal-to-noise ratio (SNR), range correlation, signal statistics, etc. We present a form of the weather radar equation which explicitly shows the echo power loss due to finite receiver ...
R.J. Doviak, D.S. Zrnic, D.S. Sirmans
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1955
Publisher Summary Radars using a wavelength of the order of 10 cm can detect rain to ranges of 200 miles or more, and snow to somewhat shorter ranges. At 10 cm wavelength, the scattering of the radiation by the precipitation, which is the basis of this detection, does not weaken the beam appreciably such that the detection of rain at long range is ...
J.S. Marshall +2 more
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Publisher Summary Radars using a wavelength of the order of 10 cm can detect rain to ranges of 200 miles or more, and snow to somewhat shorter ranges. At 10 cm wavelength, the scattering of the radiation by the precipitation, which is the basis of this detection, does not weaken the beam appreciably such that the detection of rain at long range is ...
J.S. Marshall +2 more
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2020 IEEE Radar Conference (RadarConf20), 2020
Modern ground-based weather radars are mostly dual-polarized, and they are rich in information content in multiple dimensions, and are ideal candidates for effective artificial intelligence (AI) applications. There are a large number of dual-polarization radars around the world.
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Modern ground-based weather radars are mostly dual-polarized, and they are rich in information content in multiple dimensions, and are ideal candidates for effective artificial intelligence (AI) applications. There are a large number of dual-polarization radars around the world.
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Proceedings International Radar Conference, 2002
The Federal Aviation Administration has established three ground-based weather radar programs. The terminal Doppler weather radar (TDWR) and weather system processor (WSP) provide wind shear detection capability for air traffic controllers in the terminal area. These systems also reduce weather related delays. The next generation weather radar (NEXRAD)
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The Federal Aviation Administration has established three ground-based weather radar programs. The terminal Doppler weather radar (TDWR) and weather system processor (WSP) provide wind shear detection capability for air traffic controllers in the terminal area. These systems also reduce weather related delays. The next generation weather radar (NEXRAD)
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Weather Radar and Ground-Penetrating Radar
2004This chapter examines two topics of modern radar: meteorological radar and ground-penetrating radar.
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Journal of Applied Meteorology, 1975
Abstract The advantages of operating weather radar in a “surveillance” mode, i.e., recording automatically all precipitation at ranges from a few kilometers to a few hundred kilometers, can be achieved without sacrifice of regional performance. The operation can be made efficient in terms of five-dimensional resolution (three spatial, time and ...
J. Stewart Marshall +1 more
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Abstract The advantages of operating weather radar in a “surveillance” mode, i.e., recording automatically all precipitation at ranges from a few kilometers to a few hundred kilometers, can be achieved without sacrifice of regional performance. The operation can be made efficient in terms of five-dimensional resolution (three spatial, time and ...
J. Stewart Marshall +1 more
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2003
In this chapter, we discuss in section 5.1, with particular reference to operational ground-based radars, the observational procedures, scan strategies and common sources of observational error. This is followed by a discussion of the tracking of echoes and various techniques for derivation of echo motion and wind.
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In this chapter, we discuss in section 5.1, with particular reference to operational ground-based radars, the observational procedures, scan strategies and common sources of observational error. This is followed by a discussion of the tracking of echoes and various techniques for derivation of echo motion and wind.
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On the Sensitivity of Weather Radars
Journal of Atmospheric and Oceanic Technology, 1986Abstract This paper discusses the subject of weather radar system sensitivity from a general point of view, with emphasis an the influence of wavelength. Expressions for the echo signal-to-noise ratio are examined using a detection theory approach to develop factors describing the effects of different signal processing techniques. Then the variation of
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