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I am currently working as a Project Scientist at Indian Institute of Tropical Meteorology. I am working on improving seasonal and sub-seasonal predictability of Indian Summer Monsoon.
Relationship between convective available potential energy (CAPE) and precipitation is explored in a season-long cloud-resolving model (CRM) simulation of Indian summer monsoon. The location of maximum precipitation and CAPE does not always coincide in a CRM simulation. The diurnal land surface heating is shown to have an effect on CAPE and precipi...
Equatorward propagating precipitation episodes over the Bay of Bengal have been documented in many previous observational studies. Proposed propagation mechanisms include mean surface to midtropospheric wind shear driving the convection orthogonal to the lower tropospheric winds and the gravity currents generated by outflow from convection initiate...
High Resolution Simulation of Indian Monsoon Precipitation and Implications on Cumulus Parameterizations
Relationship between CAPE and Precipitation in a CRM
The simulation of precipitation in a general circulation model relying on relaxed mass flux cumulus parameterization scheme is sensitive to cloud adjustment time scale (CATS). In this study, the frequency of the dominant intra-seasonal mode and interannual variability of Indian summer monsoon rainfall (ISMR) simulated by an atmospheric general circ...
Interdecadal Variability of the Indian Monsoon in an Atmospheric General Circulation Model
We find the role of cumulus parameterization closure assumption on mean Indian monsoon precipitation prediction
The precipitation by Relaxed Arakawa–Schubert cumulus parameterization in a General Circulation Model (GCM) is sensitive to the choice of relaxation parameter or specified cloud adjustment time scale. In the present study, we examine sensitivity of simulated precipitation to the choice of cloud adjustment time scale (τadj) over different parts of t...
During the CTCZ-Pilot experiment, Vaisala and Pisharoty radiosondes were launched simultaneously on some days. It is for the first time that these two radiosondes have been launched together providing a good opportunity to compare their performance. In this paper, the basic parameters, namely temperature (T), relative humidity (RH), wind speed and...
I am studying boundary layer properties over Ocean. Was looking for observations which preferably should be high frequency.