# Browse Dept. of Atmospheric Sciences by Issue Date

• (1978)

application/pdf

PDF (5MB)
• (1979)

application/pdf

PDF (4MB)
• (1980)
The importance of gust fronts in triggering new storm development is widely recognized. A three-dimensional numerical cloud model developed by Klemp and Wilhelmson is used to study the relationship of new convection to ...

application/pdf

PDF (5MB)
• (1980)
The capture efficiency was obtained experimentally near 30% relative humidity for cloud drops (56-93 (mu)m radius) with solid spheroidal particles of manganese hypophosphite (0.58-3.2 (mu)m radius) and near 90% relative ...

application/pdf

PDF (3MB)
• (1983)
Two- and three-dimensional numerical cloud ensembles models have been developed to study the collective response, statistical properties and formation of convective clouds. In the tropics, large-scale lifting is predominantly ...

application/pdf

PDF (7MB)
• (1985)
Recent observational studies of winter storms over the Glamorgan Hills of south Wales (Browning et al., 1974, and Hill et al., 1981) have confirmed the importance of the seeder-feeder mechanism of orographic precipitation ...

application/pdf

PDF (9MB)
• (1985)
Two high-resolution, two-dimensional numerical models are developed and used to investigate the dynamics of thunderstorm outflows. The first model employs the set of unapproximated, inviscid, fully compressible hydrodynamical ...

application/pdf

PDF (20MB)
• (1985)
The normal modes of large-scale atmospheric motions have been examined in a spherical quasi-geostrophic model extending from the surface up to 80 km to investigate the stability of zonal motions in the stratosphere and ...

application/pdf

PDF (6MB)
• (1985)
First GARP (Global Atmospheric Research Program) Global Experiment, Level III-b data and the outgoing longwave radiation data are used to investigate relationships between deep cloud activity and large-scale meteorological ...

application/pdf

PDF (7MB)
• (1985)
Arakawa and Schubert (1974) developed a cumulus parameterization scheme in a framework that conceptually divides the mutual interaction of the cumulus convection and large-scale disturbance into the categories of large-scale ...

application/pdf

PDF (6MB)
• (1987)
Significant events in terms of hemispheric mass anomalies are identified using surface data from the European Centre for Medium-Range Weather Forecasts (ECMWF) for 1979-1982. The time scale of the anomalous fluctuations ...

application/pdf

PDF (9MB)
• (1987)
A planetary wave model which is symmetric about the equator has been developed using the linear balance set of equations. The model is formulated on a sphere and spectrally truncated to 4 zonal and 7 meridional modes. There ...

application/pdf

PDF (7MB)
• (1988)
The genesis and evolution of easterly waves over the Atlantic Ocean are investigated with a moist multi-level quasi-geostrophic model. The origin of African waves is first re-examined as a linear instability problem of a ...

application/pdf

PDF (9MB)
• (1988)
A two-dimensional, nonhydrostatic cloud model was used in attempts to numerically replicate the observed structure of a typical midlatitude squall line. The basic simulations described in this report were made using common ...

application/pdf

PDF (8MB)
• (1988)
The rapid development of a cyclone over Canada and a cold front over the United States were the major weather systems observed on 25-26 April 1979 during the period of SESAME-AVE (Severe Environment Storm and Mesoscale ...

application/pdf

PDF (11MB)
• (1989)
The evolution of atmospheric baroclinic waves is investigated by a six-layer forced dissipative quasi-geostrophic $\beta$-plane channel model. In the control run, the model has: (i) a realistic zonal thermal forcing, (ii) ...

application/pdf

PDF (4MB)
• (1989)
In the past the best models of raindrop shapes were based on a perturbation form of Laplace's formula valid only for small amplitude distortion from the effect of an aerodynamic pressure around a sphere. In contrast, the ...

application/pdf

PDF (4MB)
• (1990)
A numerical cloud model in both two-dimensional and three-dimensional form is used to investigate the dynamical differences between non-squall and squall line convection in the tropics. Two-dimensional simulations with ...

application/pdf

PDF (9MB)
• (1990)
One of the more spectacular and elusive events of nature is the tornado. Usually spawned by a highly organized, lasting, and rotating thunderstorm called a "supercell", tornadoes are one of the most destructive atmospheric ...

application/pdf

PDF (9MB)
• (1990)
The first part of this thesis is a study of the dynamics of storm tracks from the perspective of local instability of a class of zonally inhomogeneous basic jet streams. An unstable local mode consists of a group of dominant ...

application/pdf

PDF (8MB)