Articles | Volume 18, issue 5
https://doi.org/10.5194/gmd-18-1879-2025
https://doi.org/10.5194/gmd-18-1879-2025
Model evaluation paper
 | 
18 Mar 2025
Model evaluation paper |  | 18 Mar 2025

Indian Institute of Tropical Meteorology (IITM) High-Resolution Global Forecast Model version 1: an attempt to resolve monsoon prediction deadlock

R. Phani Murali Krishna, Siddharth Kumar, A. Gopinathan Prajeesh, Peter Bechtold, Nils Wedi, Kumar Roy, Malay Ganai, B. Revanth Reddy, Snehlata Tirkey, Tanmoy Goswami, Radhika Kanase, Sahadat Sarkar, Medha Deshpande, and Parthasarathi Mukhopadhyay

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Cited articles

Abhik, S., Halder, M., Mukhopadhyay, P., Jiang, X., and Goswami, B. N.: A possible new mechanism for northward propagation of boreal summer intraseasonal oscillations based on TRMM and MERRA reanalysis, Clim. Dynam., 40, 1611–1624, https://doi.org/10.1007/s00382-012-1425-x, 2013. 
Abhik, S., Krishna, R. P. M., Mahakur, M., Ganai, M., Mukhopadhyay, P., and Dudhia, J.: Revised cloud processes to improve the mean and intraseasonal variability of Indian summer monsoon in climate forecast system: Part 1, J. Adv. Model. Earth Sy., 9, 1002–1029, https://doi.org/10.1002/2016MS000819, 2017. 
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Arakawa, A. and Schubert, W. H.: Interaction of a cumulus cloud ensemble with the large-scale environment, Part I, J. Atmos. Sci., 31, 674–701, https://doi.org/10.1175/1520-0469(1974)031<0674:IOACCE>2.0.CO;2, 1974. 
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Short summary
The High-Resolution Global Forecast Model (HGFM) is an advanced iteration of the operational Global Forecast System (GFS) model. HGFM can produce forecasts at a spatial scale of ~6 km in tropics. It demonstrates improved accuracy in short- to medium-range weather prediction over the Indian region, with notable success in predicting extreme events. Further, the model will be entrusted to operational forecasting agencies after validation and testing.
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