Tropopause characteristics over Indian region

Abstract

Tropical atmosphere hold key to much of variability in global climate change. But many processes occurring in the tropical upper tropospherelower stratosphere (UTLS) region is not clearly understood. Accurate knowledge of mechanism acting in tropopause region is required forweather forecasting beyond 5 days. The temperature and water vapour characteristics in the vicinity of tropopause measured using radiooccultation technique over Indian subcontinent is presented here. Tropopause temperature and height shows large variation over Indianregion. Extremely cold tropopause temperature is observed over many parts of India. Water vapour in UTLS region exhibits seasonalvariation.