Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 9
Articles | Volume 33, issue 9
https://doi.org/10.5194/angeo-33-1081-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-33-1081-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 9
Regular paper
 | 
03 Sep 2015
Regular paper |  | 03 Sep 2015

Tropical upper tropospheric humidity variations due to potential vorticity intrusions

M. Sandhya, S. Sridharan, and M. Indira Devi

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Short summary
Four cases are presented in which the relative humidity (RH) shows consistent increase by more than 50% in the upper troposphere (200-250 hPa) over tropics at the eastward side of the potential vorticity (PV) intrusion region. The increase in RH is observed irrespective of whether the PV intrusions are accompanied by deep convection or not and is suggested to be due to poleward advection induced by the PV intrusions.
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