Triggering of convective precipitation observed with 206.5 MHz VHF radar over the central Himalayas

Abstract

The Himalayan region plays an important role in determining the meteorological conditions of the Indian subcontinent. During recent years, frequent events of triggering of local convection and subsequent rapid precipitations are being noticed in the Himalayan region. This work presents a few such events observed during the monsoon period of this year using the ARIES ST Radar at Nainital, over the central Himalayan region. Different phases of the simultaneous occurrence of the precipitation at the two vertical levels in a convective pillar cloud are discussed. Hourly changes in the atmospheric processes during the event are also shown.