Effects of Cumulus Convection on Rapidly Intensifying Cyclones

Abstract

To explain the inter actions between convective processes and larger scale marine weather systems, to increase our understanding of the processes affecting the size distribution of cloud droplets in maritime clouds, and to study atmospheric processes through application of new methods of remote sensing. To investigate the effects of convection and cloud microphysics on rapidly intensifying oceanic cyclones. To determine how mixing affects cloud dropsize distribution in the presence of wind shear. To examine whether microscopic supersaturation can broaden cloud dropsize spectra. To explore how longwave cooling affects cloud dynamics and microphysics in trade-wind cumulus clouds. To analyze the structure of a simulated hurricane. To develop methods for measuring the buoyancy flux in the boundary layer using wind profiler and RASS data. Theoretical and modeling studies using a hierarchy of models. Observational studies of weather events to support modeling activities. The development of explicit microphysics in a compressible mesoscale model and simulation of the ERICA IOP2 storm. The analysis of the relation between mixing and cloud dropsize distribution in atwo-dimensional cloud model. A study on the interaction between longwave radiation and cloud dynamics in a small convective cloud. A triply-nested grid simulation of Hurricane Andrew. An analysis of the kinematic structures and inner-core characteristics of the simulated Hurricane Andrew. An examination of the surface winds during the landfall of a hurricane. A direct numerical simulation study on the growth of cloud droplets in a turbulent flow. Development of a method for measuring the heat fluxes in a convective boundary layer using a Radio-Acoustic Sounding System (RASS).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1998
Accession Number
ADA544776

Entities

People

  • M. K. Yau
  • R. R. Rogers

Organizations

  • McGill University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Aircrafts
  • Boundaries
  • Boundary Layer
  • Clouds
  • Convection
  • Cumulus Clouds
  • Heat Energy
  • Heat Flux
  • Layers
  • Meteorology
  • Remote Sensing
  • Spatial Distribution
  • Turbulence
  • Turbulent Flow
  • Wave Propagation
  • Wind Shear

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Computational Fluid Dynamics (CFD)