Validation of 205 MHz wind profiler radar located at Cochin, India, using radiosonde wind measurements

摘要

A novel Mini Wind Profiling radar at 205 MHz has been set up at Cochin (10.04N, 76.33E), India, with the main objective of studying the dynamics of the Indian summer monsoon. This paper presents the first time validation of this Mini Wind Profiler using collocated radiosonde wind measurements. The wind profiles within 1–6 km altitude range have been validated. The radar wind profiles match very well with the radiosondes both in terms of magnitude and direction and ideally captures the day-to-day wind variations. The correlation between radar and radiosonde's zonal and meridional wind is 0.91 and 0.85, respectively. The standard deviation of the difference between radiosonde and radar for zonal wind is found to be 1.95 m s and 1.56 m s for meridional wind. These observations are seen to agree quite well with other established wind profiler radars operating elsewhere in the world. The results show that the 205 MHz Wind Profiler is capable of providing high-quality wind data, and this could be pivotal for monsoon studies in years to come.