Catalog Search Results
Author
Series
Atmospheric science paper volume no. 624
Pub. Date
1996.
Description
Animations of Next Generation Radar reflectivity images are used to analyze the evolution of convective and stratiform regions of 13 mesoscale convective systems.
Author
Series
Atmospheric science paper volume no. 437
Pub. Date
1989.
Description
Bulk models of the planetary boundary layer (PBL) conventionally rely on diagnostic forms of the turbulence kinetic energy (TKE) equation to determine the entrainment rate. During episodes of rapid deepening or shallowing, the local time rate of change of the vertically integrated TKE becomes significant compared to the difference between gross production and dissipation. A method is presented to determine the entrainment rate in a bulk PBL model...
Author
Series
Atmospheric science paper volume no. 299
Pub. Date
1978.
Description
The diurnal variation of mass divergence and vertical velocity is documented for tropical summertime oceanic weather systems in the Western Pacific, Western Atlantic and the GATE region. It is shown that this diurnal variation is very large and has the same basic character in all regions.
Author
Series
Atmospheric science paper volume no. 125
Pub. Date
1968.
Description
The geostrophic system of equations with both the effects of orography and heat contrast corresponding to land-sea distribution is integrated with respect to time by using the spectral method. The computed results show the appearance of reasonable blocking situation and a corresponding double jet stream in the latitudinal distribution of the zonally averaged zonal wind.
Author
Series
Atmospheric science paper volume no. 778
Pub. Date
[2006]
Description
Mesoscale convective systems (MCSs) have a large influence on the weather over the central United States during the warm season by generating essential rainfall and severe weather. To gain insight into the predictability of these systems, the precursor environment of several hundred MCSs were thoroughly studied across the U.S. during the warm seasons of 1996-98.
Author
Series
Atmospheric science paper volume no. 179
Pub. Date
1972.
Description
A statistical survey of the wind veering in the lowest two kilometers is made for the oceans of the Northern Hemisphere.
Author
Series
Atmospheric science paper volume no. 578
Pub. Date
1995.
Description
Recent observational studies of upper-tropospheric and lower-stratospheric winds atop mesoscale convective systems show the development of anticyclonic outflow....As the magnitude of the anticyclone increases, the inertial stability of the system is reduced, resulting in a decreased partitioning of the initial available potential energy to the balanced state of the system.
Author
Series
Atmospheric science paper volume no. 355
Pub. Date
1982.
Description
A detailed analysis of the 20 July 1977 thunderstorm complex which formed and evolved over the South Park region in Central Colorado is presented.
Author
Series
Atmospheric science paper volume no. 217
Pub. Date
1974.
Description
This paper presents a diagnostic study of two models proposed by Betts (1973a). The first was a model for a well-mixed sub-cloud layer capped by a more stable transition layer. The downward heat flux at the base of this transition layer is here estimated from the thermal structure of the layer to be 15-25% of the surface sensible heat flux. The second model was a model for a two layer lapse-rate structure for the cumulus layer. A sensitivity analysis...
Author
Series
Atmospheric science paper volume no. 149
Pub. Date
1970.
Description
Meridional fluxes of angular momentum and kinetic energy values have been computed for the month of January 1964 for five longitudinal sections of the Northern Hemisphere.
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