Preprints
https://doi.org/10.5194/amt-2020-516
https://doi.org/10.5194/amt-2020-516

  08 Feb 2021

08 Feb 2021

Review status: this preprint was under review for the journal AMT. A revision for further review has not been submitted.

Wind measurement comparison of Doppler lidar with wind cup and L band sounding radar

Zizhong Zhou1 and Zhichao Bu2 Zizhong Zhou and Zhichao Bu
  • 1Atmospheric Observation Technology Supporting Center of Zhejiang Province, Zhejiang Hangzhou, 310018
  • 2CMA, Meteorological Observation Centre, China, Beijing, 100081

Abstract. Wind-profiling lidars are now regularly used in boundary-layer meteorology and in applications such as vertical wind field measurement. In order to verify the accuracy of the Doppler wind lidar, the major domestic Doppler wind lidar manufacturers were organized to compare the Minute-level average wind speed and direction data measured by the lidar to which measured by meteorological gradient tower and L band Sounding radar in Shenzhen and Zhangjiakou, respectively. The result of comparison with the wind cup on the meteorological gradient tower is in good agreement, the correlation coefficient of wind speed is close to or higher than 90 %, and the maximum standard deviation of the wind direction is about 7° except the inflection point. When the L-band sounding radar is used as a reference for the lidar equipment which joint the comparison. The system difference and standard deviation of daily wind speed and direction vary greatly, and the reliability is poor. At the same time, it was founded that compared with the 1-minute average data, when the 10-minute average data were used for comparison, the system deviation and standard deviation were reduced. That mean the results were more stable and reliable. The comparison results show that the technical indicators of several domestic lidar equipment are equivalent to windcube indicators made by Vaisala and complying with the World Meteorological Organization's requirements for the Coherent Doppler Lidar indicator for near-term weather forecasts. It shows the lidars are reliable to obtain wind speed and direction parameters at different altitudes in real time.

Zizhong Zhou and Zhichao Bu

Status: closed (peer review stopped)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on amt-2020-516', Alexander Shelekhov, 09 Feb 2021
    • CC2: 'Reply on CC1', Zizhong Zhou, 19 Feb 2021
  • RC1: 'Comment on amt-2020-516', Anonymous Referee #1, 16 Mar 2021
    • CC3: 'Reply on RC1', Alexander Shelekhov, 22 Mar 2021
  • RC2: 'Comment on amt-2020-516', Anonymous Referee #2, 17 May 2021

Status: closed (peer review stopped)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on amt-2020-516', Alexander Shelekhov, 09 Feb 2021
    • CC2: 'Reply on CC1', Zizhong Zhou, 19 Feb 2021
  • RC1: 'Comment on amt-2020-516', Anonymous Referee #1, 16 Mar 2021
    • CC3: 'Reply on RC1', Alexander Shelekhov, 22 Mar 2021
  • RC2: 'Comment on amt-2020-516', Anonymous Referee #2, 17 May 2021

Zizhong Zhou and Zhichao Bu

Zizhong Zhou and Zhichao Bu

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Short summary
In this paper we compare the Minute-level average wind speed and direction data measured by lidars to which measured by meteorological gradient tower and L band Sounding radar in Shenzhen and Zhangjiakou, one of the major cities in southern and northern China respectively. The meteorological gradient tower in Shenzhen is 356 meters high which capable for the comparison. Long-term data for about half a month shown good agreement between lidars and wind cup on the meteorological gradient tower.