Articles | Volume 10, issue 1
Model evaluation paper
06 Jan 2017
Model evaluation paper |  | 06 Jan 2017

Connecting spatial and temporal scales of tropical precipitation in observations and the MetUM-GA6

Gill M. Martin, Nicholas P. Klingaman, and Aurel F. Moise

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Cited articles

Birch, C. E., Parker, D. J., Marsham, J. H., Copsey, D., and Garcia-Carreras, L.: A seamless assessment of the role of convection in the water cycle of the West African Monsoon, J. Geophys. Res., 119, 2890–2912,, 2014.
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,, 2015.
Cortés-Hernández, V. E., Zheng, F., Evans, J., Lambert, M., Sharma, A., and Westra, S.: Evaluating regional climate models for simulating sub-daily rainfall extremes, Clim. Dyn., 47, 1613–1628,, 2015.
Donlon, C. J., Martin, M., Stark, J., Roberts-Jones, J., Fiedler, E., and Wimmer, W.: Remote sensing of environment the operational sea surface temperature and sea ice analysis (OSTIA) system, Remote Sens. Environ., 116, 140–158,, 2012.
Fosser, G., Khodayar, S., and Berg, P.: Benefit of convection permitting climate model simulations in the representation of convective precipitation, Clim. Dyn., 44, 45–60,, 2015.
Short summary
We analyse and evaluate tropical rainfall variability in the MetUM-GA6 configuration at four different horizontal resolutions, plus one in which the convection parameterization has been switched off. Tropical deep convective rainfall in this model tends to be intermittent in space and time. This behaviour is largely independent of model resolution. Switching off the deep convection parameterization (at ~10 km resolution) results in isolated, but persistent, rainfall on the gridscale.