Tests of a convective cloud model with soundings during the TCM-90 field experiment.
Loading...
Authors
Yin, Tzyh-Chyang
Subjects
Cumulus Parameterization
Radiative-Convective Equilibrium Simulation
Precipitation rates
Radiative-Convective Equilibrium Simulation
Precipitation rates
Advisors
Chu, Pecheng
Date of Issue
1992-03
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
A new proposed scheme for representing cumulus convection in a large-scale
numerical model has been tested using the dataset collected during the Tropical Cyclone
Motion (TCM-90) field experiment. This new scheme incorporated some modifications
by K. Emanuel, which are based on recent observations of convective clouds, and
showed much of the vertical transport of convective clouds was accomplished by
subcloud-scale drafts rather than by the clouds themselves. These small-scale drafts were
idealized and regarded as the fundamental agents of the convective transport. The input
to the idealized model of subcloud-scale updrafts and downdrafts is the one-dimensional
arrays of temperature and mixing ratio as a function of pressure, and the output is the
tendency of potential temperature and the tendency of mixing ratio as well as the rate of
convective precipitation.
Type
Thesis
Description
Series/Report No
Department
Meteorology
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
68 p.;28 cm.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.