Articles | Volume 18, issue 2
Research article
26 Jan 2018
Research article |  | 26 Jan 2018

Regional simulation of Indian summer monsoon intraseasonal oscillations at gray-zone resolution

Xingchao Chen, Olivier M. Pauluis, and Fuqing Zhang

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Cited articles

Ajayamohan, R. S.: Simulation of South-Asian Summer Monsoon in a GCM, Pure Appl. Geophys., 164, 2117–2140,, 2007. 
Ajayamohan, R. S. and Goswami, B. N.: Potential predictability of the Asian summer monsoon on monthly and seasonal time scales, Meteorol. Atmos. Phys., 84, 83–100,, 2003. 
Ajayamohan, R. S., Khouider, B., and Majda, A. J.: Simulation of monsoon intraseasonal oscillations in a coarse-resolution aquaplanet GCM, Geophys. Res. Lett., 41, 5662–5669,, 2014. 
Belkin, M. and Niyogi, P.: Laplacian Eigenmaps for dimensionality reduction and data representation, Neural Comput., 15, 1373–1396,, 2003. 
Betts, A. K. and Miller, M. J.: A new convective adjustment scheme. Part II: Single column tests using GATE wave, BOMEX, ATEX and arctic air-mass data sets, Q. J. Roy. Meteorol. Soc., 112, 693–709,, 1986. 
Short summary
Simulations of the Indian summer monsoon by the cloud-permitting WRF model at gray-zone resolution (9 km) are described in this study, with a particular emphasis on the model ability to capture the monsoon intraseasonal oscillations (MISOs). When compared to simulations with coarser grid spacing (27 km) and using a cumulus scheme, the 9 km simulations reduce the biases in mean precipitation and produce more realistic low-frequency variability associated with MISOs.
Final-revised paper