Abstract
High spatial and temporal resolution measurements from the Indian Geostationary satellite ‘Kalpana-1’ have been utilized to find the relation between the convection and upper tropospheric humidity (UTH). The analysis reveals that the UTH leads deep convection by 2–4 h over Indian landmass, which is attributed to the advection associated with tropical easterly jet rather than the direct overshooting monsoon convection. In contradiction, the UTH lags convection by 2–6 h over nearby oceans, indicating that direct overshooting convection plays a major role in moistening the upper troposphere. A new mechanism is proposed in which, if the UTH leads to deep convection, thick and dense high-altitude clouds form that can lead to negative feedback to convection through radiative cooling. If UTH lags convection then thin clouds form, thereby can result in positive feedback for convection. However, this feedback to convection is controlled by the presence of the TEJ.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Atmospheric and Solar-Terrestrial Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
