Sodar studies of some atmospheric boundary layer parameters during a solar eclipse

Sodar observations of the atmospheric boundary layer during the solar eclipse of 24 October 1995 have been examined for three different topographical stations in India. The celestial phenomenon occurred almost at the morning transitional time when night-time stable conditions were giving way to day-time unstable conditions. The echograms (sodar records) have been examined with special reference to the delay in break-up of inversion on the eclipse day. The delay was clearly reflected on the echograms of the same site when compared with the eroding inversion on a preceding/subsequent normal day. Doppler sodar data suggest a compression in vertical wind velocity and turbulence due to the increased stability during the eclipse phase