What is it about?

1. Diurnal precipitation characteristics of the Indian summer monsoon were simulated realistically without convective parameterization 2. Precipitation characteristics were more dependent on convection representation than model horizontal grid resolution 3. Explicit (parameterized) convection experiments simulate high‐intensity localized (high‐frequency widespread) precipitation events

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Why is it important?

Representation of convection accurately in the climate models is essential for the prediction of precipitation. If convection is not accurately represented, then to found out the kind of errors does it pose in the climate simulations. Do current climate models have skill in representing convection, then how to quantify them? This article is our first endeavor to answer these questions on convection representation.


This article firstly focuses on the representation of convection in the climate models. A clear picture of the convection related errors is provided in the precipitation in terms of its diurnal cycle, frequency, intensity, mesoscale precipitation system, and propagation of the precipitation systems. These errors arise due to the poor representation of convection in the model. With the help of convection-permitting simulation, the errors mentioned above were resolved and simulated the convection convincingly.

Rakesh Teja Konduru
Shuto Daigaku Tokyo

Read the Original

This page is a summary of: Effects of Convection Representation and Model Resolution on Diurnal Precipitation Cycle Over the Indian Monsoon Region: Toward a Convection‐Permitting Regional Climate Simulation, Journal of Geophysical Research Atmospheres, August 2020, American Geophysical Union (AGU), DOI: 10.1029/2019jd032150.
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