1. Yanjun Jiao and Colin Jones University of Quebec at Montreal
9/9/2019
Cloud processes simulated by the Canadian Regional Climate Model along a cross-section in the Pacific Ocean
Yanjun Jiao and Colin Jones
University of Quebec at Montreal

2. Cross-section of the GCSS Pacific Cross-section Intercomparison (GPCI)
Focus on the cloud (stratiform, shallow and deep convection) and precipitation processes
Seasonal mean of June-July-August 1998
Comparison with observations and reanalysis
CRCM4 domain in PS projection
Modification to the model physics of CRCM4
The eddy diffusivities calculation of the ECMWF.
A switch to turn off the shallow convection.
The trigger function of shallow convection (DTRH).
The cloud base mass flux closure=f (w*).
Variable cloud radius of the deep convection=f(wLCL).
Variable minimum cloud-depth=f(TLCL).
A dilute updraft ascent.
Xu-Randall cloud scheme.
Evaporation of falling large scale precipitation.
Sponge zone (9 grid points)
GPCI 2D domain (5ºS-45ºN,160ºE-120ºW)
GPCI cross-section (13 points)
ISCCP cloud cover (JJA 1998)

3. ERA40
CRCMM
CRCM4
Vertical profile of the cloud cover
ISCCP
CRCMM
CRCM4
Seasonal mean total cloud cover simulated by the original CRCM4, modified CRCM and the observation from ISCCP

4. Vertical profile of the relative humidity
ERA40
CRCMM
CRCM4
Vertical profile of vertical velocity (Pa/s)