• Laser & Optoelectronics Progress
  • Vol. 59, Issue 16, 1601003 (2022)
Chuan Li1、2, Changjian Ni1、2、*, and Xinyi Li3
Author Affiliations
  • 1School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, Sichuan , China
  • 2Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu 610225, Sichuan , China
  • 3Chengdu Meteorological Service, Chengdu 611130, Sichuan , China
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    DOI: 10.3788/LOP202259.1601003 Cite this Article Set citation alerts
    Chuan Li, Changjian Ni, Xinyi Li. Applicability Analysis of Wind Profiler Radar in Chengdu[J]. Laser & Optoelectronics Progress, 2022, 59(16): 1601003 Copy Citation Text show less

    Abstract

    The applicability of wind profiler radar products in Chengdu is investigated using L-band sounding radar data from the Wenjiang District Weather Station, Chengdu, from January 2020 to July 2020, based on the wind field and atmospheric refractive index structure constant (Cn2). At all levels, there is a significant positive correlation (p<0.05) between the horizontal wind field retrieved by the wind profiler radar and L-band sounding radar wind data measured at the same time. The horizontal wind speed retrieved by the wind profiler radar is about 0‒1 m·s-1 smaller than the L-band sounding radar at the low level (<2.5 km), and the effective sample rate of the horizontal wind speed at each level fluctuates between 90% and 100%. The horizontal wind speed retrieved by the wind profiler radar is about 0.5‒2 m·s-1 smaller than the L-band sounding radar at the high level (>2.5 km), and the effective sample rate of the horizontal wind speed fluctuates between 70% and 90%. Additionally, the effective sample rate of the horizontal wind direction of the wind profiler radar fluctuates growth with increasing altitude. When the atmosphere is moderately unstable, weakly unstable, neutral, or weakly stable, the Cn2 profiles retrieved by the wind profiler radar and L-band sounding radar agree well with each other at the same time. When the atmosphere is severely unstable or moderately stable, the Cn2 profiles retrieved by the wind profiler radar and L-band sounding radar show a significant positive correlation (p<0.05), but the two profiles have a large value difference. Precipitation is another important factor that affects the accuracy of the wind profile radar inversion, resulting in a significant increase in the horizontal wind speed inaccuracy.
    Chuan Li, Changjian Ni, Xinyi Li. Applicability Analysis of Wind Profiler Radar in Chengdu[J]. Laser & Optoelectronics Progress, 2022, 59(16): 1601003
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