In Part I of this study it was shown that moving from a moisture-convergentto a relative-humidity-dependent organized entrainment rate in the formulation for deep convection was responsible for significant advances in the simulation of the Madden–Julian Oscillation (MJO) in the ECMWF model. However, the application of traditional MJO diagnostics were not adequate to understand why changing the ...

Recent observational analysis reveals the central role of three multicloud types, congestus, stratiform, and deep convective cumulus clouds, in the dynamics of large-scale convectively coupled Kelvin waves, westward-propagating two-day waves, and the Madden–Julian oscillation. A systematic model convective parameterization highlighting the dynamic role of the three cloud types is developed here...

Abstract. We describe the development of a non-hydrostatic version regional climate model RegCM4, called RegCM4-NH, for use at convection-permitting resolutions. The dynamical core Mesoscale Model MM5 is introduced in with some modifications to increase stability and applicability long-term simulations. Newly available explicit microphysics schemes are also described, three case studies intense...

The atmospheric response to the spring Kuroshio Front over the East China Sea is investigated using a suite of high-resolution satellite data and a regional atmospheric model. The atmospheric response appears to extend beyond the marine atmospheric boundary layer, with frequent occurrence of cumulus convection. In spring, Quick Scatterometer (QuikSCAT) wind speed shows a clear effect of sea sur...

[1] The anomalous, low-level anticyclone near the Philippines and suppressed convection over the western Pacific associated with the mature warm phase of El Niño–Southern Oscillation (ENSO) have been suggested as important elements in the interaction between ENSO and the East Asian monsoon. We examined the causes of these anomalies in the circulation and convection using a newly developed, line...

Our objectives are a) To describe the detailed structure of the air flow in a mature hurricane, b) To understand the vertical force balance in the eye and the eyewall, c) To investigate the presence of supergradient flow in hurricanes and the underlying processes, d) To study the surface wind structures during landfall, e) To investigate the transformation of a cold-core continental mesovortex ...

Abstract Convection-permitting resolutions, which refer to kilometer-scale horizontal grid spacings, have become increasingly popular in regional numerical weather prediction and climate studies. However, this resolution range is the gray zone for simulation of convection, where conventional cumulus convection subgrid-scale (SGS) turbulence parameterizations are inadequate such spacings due inv...