Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 5, issue 2
Articles | Volume 5, issue 2
https://doi.org/10.5194/wcd-5-711-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-5-711-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 5, issue 2
Research article
 | 
08 May 2024
Research article |  | 08 May 2024

Using regional relaxation experiments to understand the development of errors in the Asian summer monsoon

Gill M. Martin and José M. Rodríguez

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Cited articles

Adler, R. F., Huffman, G. J., Chang, A., Ferraro, R., Xie, P., Janowiak, J., Rudolf, B., Schneider, U., Curtis, S., Bolvin, D., Gruber, A., Susskind, J., Arkin, P., and Nelkin, E.: The version-2 global precipitation climatology project (GPCP) monthly precipitation analysis (1979–present), J. Hydrometeorol., 4, 1147–1167, 2003. 
Beverley, J. D., Woolnough, S. J., Baker, L. H., Johnson, S. J., Weisheimer, A., and O'Reilly, C. H.: Dynamical mechanisms linking Indian monsoon precipitation and the circumglobal teleconnection, Clim. Dynam., 57, 2615–2636, https://doi.org/10.1007/s00382-021-05825-6, 2021.  
Blockley, E. W., Martin, M. J., McLaren, A. J., Ryan, A. G., Waters, J., Lea, D. J., Mirouze, I., Peterson, K. A., Sellar, A., and Storkey, D.: Recent development of the Met Office operational ocean forecasting system: an overview and assessment of the new Global FOAM forecasts, Geosci. Model Dev., 7, 2613–2638, https://doi.org/10.5194/gmd-7-2613-2014, 2014. 
Bollasina, M. and Nigam, S.: Indian Ocean SST, evaporation, and precipitation during the South Asian summer monsoon in IPCC AR4 coupled simulations, Clim. Dynam., 33, 1017–1032, https://doi.org/10.1007/s00382-008-0477-4, 2009. 
Bush, S. J., Turner, A. G., Woolnough, S. J., Martin, G. M., and Klingaman, N. P.: The effect of increased convective entrainment on Asian monsoon biases in the MetUM general circulation model, Q. J. Roy. Meteorol. Soc., 141, 311–326, https://doi.org/10.1002/qj.2371, 2014. 
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Using sensitivity experiments, we show that model errors developing in the Maritime Continent region contribute substantially to the Asian summer monsoon (ASM) circulation and rainfall errors through their effects on the western North Pacific subtropical high-pressure region and the winds and sea surface temperatures in the equatorial Indian Ocean, exacerbated by local coupled feedback. Such information will inform future model developments aimed at improving model predictions for the ASM.
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