Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Diabatic Heating"”.
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The Effects of Diabatic Heating on Storm Track Dynamics
The dynamical effects of diabatic heating in Northern Hemisphere winter storm tracks are studied in the context of a nonlinear primitive equation model with vertical and horizontal resolution adequate to capture shallow, short wavelength baroclinic waves. The model is forced by realistic orography …
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Uncertainties in space-based estimates of clouds and precipitation: implications for deriving global diabatic heating
… imbalances are largely accounted for by sensible heating, meridional energy transport, and absorption and transport of energy in the ocean. Finally, on average for the month of February 1998, the tropical atmosphere cools at -1 Kday-1 and experiences a net cloud forcing of -10 Wm-2 at TOA and -22 …
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The Steady-State Planetary Wave Response to Wave-Coupled Orographic Lower Boundary Forcing and Diabatic Heating in The Northern Hemisphere
… Hemisphere orography and a wintertime calculated diabatic heating.
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Understanding the Maintenance and Seasonal Transitions of the Climatological Stationary Waves in the Atmosphere
… from the deficiencies of the GCM simulated diabatic heating field. Therefore, a significant improvement in the parameterization schemes and spatial resolution of the GCM is needed for the GCM to provide a sound simulation of the observed stationary waves.
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On the maintenance of blocking anticyclones in a general circulation model
… perturbations; it is predominately balanced by adiabatic heating in the free troposphere and by diabatic heating near the surface. Transient eddy heat transports act to dissipate the block's thermal perturbations at all levels, while diabatic heating does not exhibit a systematic relationship …
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Investigation of the positive interaction between the primary and secondary circulation and the roles of different types of precipitation in tropical cyclone formation
… by stratiform precipitation. Spectral latent heating profiles derived from the TRMM PR are also examined and compared to diabatic heating profiles from a high-resolution numerical model simulation. The total areal mean heating results entirely from the diabatic heating associated with deep …
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On the mechanism of the large-scale seasonally varying upwelling in the region of the tropical tropopause
… and local radiative and (tropospheric) cumulus heating in controlling the mean meridional circulation in the tropical stratosphere and troposphere are investigated. The study includes objective analysis of observational data and numerical simulation of the upwelling with a specially designed …
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Evidence of thermal equilibration in large-scale atmospheric blocking episodes over Europe and the North Atlantic during winter
… Characteristics of equilibration include low diabatic heating and calm conditions throughout the atmospheric column. Large-scale planetary waves can remain in these equilibrated states for long time periods, as identified in previous work. Relationships between thermal equilibration and …
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Dependence of continental severe convective instability on climatological environmental conditions
… peak CAPE from relative advection of air masses, diabatic heating of the surface boundary layer, and radiative cooling of the free troposphere are computed. In all 8 cases studied, CAPE buildup is found to be driven primarily by fluxes of heat and moisture from the surface into the boundary layer …
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Characterization of the role of precipitation in tropical cyclone intensification
… due to the theorized greater efficiency for heating existing within the RMW to develop the TC warm core due to limited radial responses associated with the greater inertial stability, while the latter algorithm permits characterization of the full spectrum of convection for the first time …
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The representation of the Kalahari thermal low and its induced circulations over Southern Africa in observations and models
… feature, the KTL. The KTL is the semi-permanent heating source in southern Africa that displaces poleward from its initiation in September until its maturation in January and recedes rapidly to disappear near where it originated in March. However, the relationship between the KTL and Angola low …
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The representation of the Kalahari Thermal Low and its induced circulations over southern Africa in observations and models
… feature, the KTL. The KTL is the semi-permanent heating source in southern Africa that displaces poleward from its initiation in September until its maturation in January and recedes rapidly to disappear near where it originated in March. However, the relationship between the KTL and Angola low …
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Toward better subseasonal-to-seasonal prediction: physics-oriented model evaluation and predictability of tropical cyclones
… boundary layer and a misrepresented shallow heating mode in the NOGAPS, suggesting a model deficiency in cumulus parameterization. The diabatic heating biases are associated with weaker trade winds, weaker Hadley and Walker circulations over the Pacific, and weaker cross-equatorial flow over …
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Tropical transport and the seasonal variability of the subtropical "edges" in the stratosphere
… during each season. We include the effects of diabatic heating and cooling as well as planetary-scale wave propagation and examine the role of these processes in the formation of potential vorticity gradients that behave in much the same way as the observed subtropical tracer gradients. Our …