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Proceedings Paper

Evaluation of NCMRWF unified model vertical cloud structure with CloudSat over the Indian summer monsoon region
Author(s): A. Jayakumar; Ashu Mamgain; A. S. Jisesh; Saji Mohandas; R. Rakhi; E. N. Rajagopal
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Paper Abstract

Representation of rainfall distribution and monsoon circulation in the high resolution versions of NCMRWF Unified model (NCUM-REG) for the short-range forecasting of extreme rainfall event is vastly dependent on the key factors such as vertical cloud distribution, convection and convection/cloud relationship in the model. Hence it is highly relevant to evaluate the vertical structure of cloud and precipitation of the model over the monsoon environment. In this regard, we utilized the synergy of the capabilities of CloudSat data for long observational period, by conditioning it for the synoptic situation of the model simulation period. Simulations were run at 4-km grid length with the convective parameterization effectively switched off and on. Since the sample of CloudSat overpasses through the monsoon domain is small, the aforementioned methodology may qualitatively evaluate the vertical cloud structure for the model simulation period. It is envisaged that the present study will open up the possibility of further improvement in the high resolution version of NCUM in the tropics for the Indian summer monsoon associated rainfall events.

Paper Details

Date Published: 3 May 2016
PDF: 6 pages
Proc. SPIE 9882, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VI, 988207 (3 May 2016); doi: 10.1117/12.2223622
Show Author Affiliations
A. Jayakumar, National Ctr. for Medium Range Weather Forecasting (India)
Ashu Mamgain, National Ctr. for Medium Range Weather Forecasting (India)
A. S. Jisesh, National Ctr. for Medium Range Weather Forecasting (India)
Saji Mohandas, National Ctr. for Medium Range Weather Forecasting (India)
R. Rakhi, National Ctr. for Medium Range Weather Forecasting (India)
E. N. Rajagopal, National Ctr. for Medium Range Weather Forecasting (India)


Published in SPIE Proceedings Vol. 9882:
Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions VI
Tiruvalam N. Krishnamurti; Madhavan Nair Rajeevan, Editor(s)

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