Radar upper wind measurements at New Delhi using Decca wind finding radar- Type WF 2

Abstract

This note gives a brief description of the Decoa wind finding radar type WF2 acquired by the India Meteorological Department. An analysis of the series of upper wind measurements taken with this radar at New Delhi during the monsoon months, July to September 1960, and the winter months, December 1960 to February 1961, is given. The structure of the upper winds over New Delhi during these months as revealed by the composite wind velocity profiles, it also indicated. The ratios of the maximum wind speed to the mean wind speed between the ground level and level of maximum wind were computed for all these ascents and the mean Percentage ratio was found to be 2.78. The comparison of the radar upper winds with the Rawin winds indicate close of squalls agreement at lower levels and when the winds are light. However, at higher levels in winter the radar winds are within 50° stronger than the Rawin winds.