Impact of monsoon‐associated deep‐penetrating clouds on the hydration of the tropical upper troposphere

Jain, Shipra; Jain, A. R.; Mandal, T. K.

doi:10.1002/asl2.517

Cited by 4 publications

(1 citation statement)

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“…This might be due to the transport of atmospheric moisture from Arabian Sea by strong southwesterlies during the monsoon. Over Indian region during monsoon period the convective clouds reaches ~7 km and these clouds can influence the moisture content in the upper troposphere (Jain et al ., ). The enhancement of mid‐troposphere moisture after the onset of ISM is well known characteristics of ISM.…”

Section: Resultsmentioning

confidence: 97%

Indian summer monsoon onset signatures on the tropical tropopause layer

Babu

Ratnam

Basha

et al. 2019

Atmospheric Science Letters

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Over the Indian region, changes in the tropopause parameters during pre-monsoon to monsoon seasons have been reported. However, no study exists to date dealing with the Indian summer monsoon (ISM) onset signatures on the tropopause parameters. In the present study, the climatological structure of the tropical tropopause layer during the onset phase of ISM is delineated by using long-term (2006-2017) radiosonde observations over Gadanki (13.5 N, 79.2 E). A prominent transition in the tropopause parameters from pre-monsoon to monsoon is noticed and the transition is initiated from the day of ISM onset. Continuous decrease (increase) of tropopause altitude (temperature) is perceived after the ISM onset. The ozonesonde observations clearly show the strong enhancement in the ozone mixing ratio in the lower stratosphere (~16-20 km) after the ISM onset. This clearly demonstrates the instantaneous warming of the tropopause region after the ISM onset in addition to the latent heat release due to the precipitation. Transitions from pre-monsoon to monsoon in the tropopause parameters are influenced strongly by onset of ISM which was attributed as seasonal changes earlier. These results provide strong evidence on the ISM onset signatures on the tropical tropopause parameters.

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Section: Resultsmentioning

confidence: 97%