A Numerical Investigation of the Precipitation over Lake Victoria Basin Using a Coupled Atmosphere-Lake Limited-Area Model

Table 1

Summary of cumulus, planetary boundary layer, and microphysics parameterization schemes used in this study.

(a) Cumulus schemes

KF: Kain-Fritsch scheme	BMJ: Betts-Miller-Janjic scheme	Grell-3D: Improved Grell-Devenyi (GD) ensemble scheme
Low-level control convective scheme and entraining-detraining mass flux scheme	Convective adjustment scheme: instability is eliminated by nudging environmental profiles of temperature and specific humidity empirically derived reference profiles	An improved version of GD scheme that may also be used on high resolution if subsidence spreading is turned on

(b) Planetary boundary layer schemes

YSU: Yonsei University scheme	MYJ/TKE: Mellor-Yamada-Janjic scheme	ACM2: Asymmetric Convective Model version 2
First-order nonlocal scheme	2.5 turbulent closure modified Mellor and Yamada scheme based on Turbulent Kinetic Energy (TKE)	Nonlocal closure scheme with eddy diffusion

(c) Microphysics schemes

WSM6: WRF Single-Moment 6-class scheme	Morrison: Morrison double-moment scheme	Lin: Lin et al. scheme	Eta: Eta microphysics for fine resolution
Extension of the WSM5 scheme including graupel and associated processes	Scheme including vapor, cloud droplets, cloud ice, rain, snow, and graupel/hail. Prediction of two-moment (number of concentration and mixing ratio) allowing for a more robust treatment of the particle size distributions	Hydrometeors including water vapor, cloud water, rain, cloud ice, snow, and graupel and scheme is taken from Purdue cloud model and details can be found in [37]	Operational scheme in NCEP models with diagnostic mixed-phase processes