Recently added articles from Journal of the Atmospheric Sciences:
Understanding the Importance of Microphysics and Macrophysics for Warm Rain in Marine Low Clouds. Part I: Satellite Observations
Oct 01, 2009; ... ABSTRACT The importance of macrophysical variables [cloud thickness, liquid water path (LWP)] and microphysical variables (effective radius r^sub e^, effective droplet concentration N^sub eff^) on warm drizzle intensity and frequency across the tropics and subtropics is studied. In this ...
Understanding the Importance of Microphysics and Macrophysics for Warm Rain in Marine Low Clouds. Part II: Heuristic Models of Rain Formation
Oct 01, 2009; ... ABSTRACT Two simple heuristic model formulations for warm rain formation are introduced and their behavior explored. The first, which is primarily aimed at representing warm rain formation in shallow convective clouds, is a continuous collection model that uses an assumed cloud droplet ...
Case Study of a Developing African Easterly Wave during NAMMA: An Energetic Point of View
Oct 01, 2009; ... ABSTRACT The West African perturbation that subsequently evolved into Hurricane Helene (2006) during NASA's African Monsoon Multidisciplinary Analysis (NAMMA), 15 August-14 September 2006, and AMMA's third special observing period (SOP-3), 15-29 September 2006, has been simulated with ...
Nonlinear Baroclinic Dynamics of Surface Cyclones Crossing a Zonal Jet
Oct 01, 2009; ... ABSTRACT Mechanisms leading a synoptic surface cyclone to cross an upper-level zonal jet and its subsequent deepening are investigated using a two-layer model on a β plane. The baroclinic interaction of a low-level circular cyclonic perturbation with an upper-level one is first ...
Evaluation of an Analytical Model for the Maximum Intensity of Tropical Cyclones
Oct 01, 2009; ... ABSTRACT Several studies have shown that the intensity of numerically simulated tropical cyclones can exceed (by 50%) a theoretical upper limit. To investigate the cause, this study evaluates the underlying components of Emanuel's commonly cited analytic theory for potential intensity ...