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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 33, issue 9
Ann. Geophys., 33, 1081–1089, 2015
https://doi.org/10.5194/angeo-33-1081-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 33, 1081–1089, 2015
https://doi.org/10.5194/angeo-33-1081-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 03 Sep 2015

Regular paper | 03 Sep 2015

Tropical upper tropospheric humidity variations due to potential vorticity intrusions

M. Sandhya et al.

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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.
Four cases are presented in which the relative humidity (RH) shows consistent increase by more...
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