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Proceedings Paper

Lower atmospheric wind observation by L-band Doppler radar in Thailand
Author(s): Nipha Leelaruji; Chaiwat Somboonlarp; Parichart Sangonchart; Narong Hemmakorn; Apinan Manyanon; Yuichi Ohno
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Paper Abstract

The study of low atmospheric boundary layer wind by wind profiler radar is the aim of this present. The L-band Doppler radar used as the meteorological equipment using operating frequency 1357.5 MHz. The transmitter radiates the pulse signal of peak power 1 kW through the upper air. The single parabolic antenna is steering into three directions, vertical, north and east respectively. This radar received the echo scattered back by the irregularity of atmospheric refractivity along the beam. The Doppler shift frequency deviates by the movement of turbulent are used to calculate the wind velocity and wind direction. The observation height starts from 150 meters to 4 km. The diurnal and seasonal wind had been observed for six years continuously. It shows the variation of wind in each year, which correspond to Asia monsoon, Northeastern monsoon and Southwestern monsoon. While the radio sonde, which operates by radio propagation technique is used for wind measurements too. The comparisons of both systems are present in correlation method.

Paper Details

Date Published: 21 December 2000
PDF: 8 pages
Proc. SPIE 4152, Microwave Remote Sensing of the Atmosphere and Environment II, (21 December 2000); doi: 10.1117/12.410585
Show Author Affiliations
Nipha Leelaruji, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Chaiwat Somboonlarp, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Parichart Sangonchart, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Narong Hemmakorn, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Apinan Manyanon, King Mongkut's Institute of Technology Ladkrabang (Thailand)
Yuichi Ohno, Communications Research Lab. (Japan)


Published in SPIE Proceedings Vol. 4152:
Microwave Remote Sensing of the Atmosphere and Environment II
Thomas T. Wilheit; Harunobu Masuko; Hiroyuki Wakabayashi, Editor(s)

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