Conditions leading to convective outbreak in the Tropics are investigated by multivariate analysis of sounding and satellite data from the tropical western Pacific area. Circumstances which make the prediction problem difficult are discussed, and addressed by applying linear “error-in-variables” and nonlinear statistical simulation techniques to a large dataset. Lowto mid-tropospheric moisture ...

S hallow boundary layer clouds are ubiquitous over many parts of the globe and strongly influence Earth’s radiative energy balance (Hartmann et al. 1992). However, our understanding of these clouds is insufficient to solve pressing scientific problems. Cloud feedback represents the largest uncertainty among all climate feedbacks in general circulation models (GCMs), and subtropical boundary lay...

[1] Identifying cloud regimes and their role in the climate system can serve a multitude of purposes, ranging from a better understanding of clouds to guiding field experiments to improving the representation of clouds in models. This study describes early results in identifying cloud regimes from ISCCP data using cluster analysis. A simple algorithm for cloud regime identification is introduce...

cumulus parameterization in numerical weather prediction models can significantly affect severe weather forecasts, such as hurricanes, flash floods, and winter storms. the role of convection is essential in stabilizing an unstable atmosphere through vertically transferring moisture, energy, chemical species and momentum. cumulus parameterization schemes use simple one-dimensional convective clo...

In this study, we examine the resolution dependence of convective spectrum in Community Atmospheric Model version 5 (CAM5) simulations, focusing on transition from shallow to deep convection and associated cloud-radiative effect (CRE) change. We first apply bin method (percentile binning) precipitation intensity obtain tropics. The same approach is also used column-integrated moist static energ...

This paper describes an assessment of the Regional Climate Model, version 3 (RegCM3), coupled to two land surface schemes: the Biosphere–Atmosphere Transfer System, version 1e (BATS1e), and the Integrated Biosphere Simulator (IBIS). The model’s performance in simulating precipitation over the Maritime Continent was evaluated against the 3-hourly Tropical Rainfall Measuring Mission (TRMM) Multis...