Refractivity turbulence structure constant (<i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0>) measurements using Indian MST radar

Abstract

Refractive turbulence structure constant (<i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0>) has been studied for the first time in India from the intensity of observed clear air radar echoes. Profiles of <i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0> have been determined from observations made at the MST radar situated near Tirupati (13.47°N, 79.1°E). The radar measurements of <i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0> have been compared with the model <i>C</i>n2. It is found that the magnitude and variation of <i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0> with height, and day to day variations of observed and model refractivity constant agree fairly well. Thus, vertical profiles of <i>C</i><img src='http://www.niscair.res.in/jinfo/n2.gif' border=0> with good height and time resolutions can be measured with sensitive Doppler radars.