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RISA Simple Model for Stratocumulus to Shallow Cumulus Cloud Transitions
Publisher: American Meteorological Society
Abstract: t is shown that essential features of stratocumulus to shallow cumulus cloud transitions can be represented by a simple stochastic model constructed from an ensemble of transitions, each of which depends on the amount of ...
Steady-State Large-Eddy Simulations to Study the Stratocumulus to Shallow Cumulus Cloud Transition
Publisher: American Meteorological Society
Abstract: his study presents a series of steady-state large-eddy simulations (LESs) to study the stratocumulus to shallow cumulus cloud transition. To represent the different stages of what can be interpreted as an Eulerian view of ...
LES of a Spatially Developing Atmospheric Boundary Layer: Application of a Fringe Method for the Stratocumulus to Shallow Cumulus Cloud Transition
Publisher: American Meteorological Society
Abstract: n arrangement of a large-eddy simulation (LES) is described that facilitates a spatially developing thermally stratified atmospheric boundary layer (ABL). When the inflow and outflow boundary conditions are specified, the ...
Detailed Study on Stiffness and Load Characteristics of Film-Riding Groove Types Using Design of Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the application of film-riding sealing technology, there are various groove features that can be used to induce hydrodynamic lift. However, there is little guidance in selecting the relative parameter settings in order ...
Investigation of Effective Groove Types for a Film Riding Seal
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Over the past two decades, significant efforts have been made to introduce film riding sealing technology on large industrial or aerospace gas turbines. The main challenge comes from the high surface speeds and high ...
Quantifying Marine Boundary Layer Water Vapor beneath Low Clouds with Near-Infrared and Microwave Imagery
Publisher: American Meteorological Society
Abstract: his study investigates the synergy of collocated microwave radiometry and near-infrared imagery to estimate the marine boundary layer water vapor beneath uniform cloud fields. Microwave radiometry provides the total column ...
Investigation of Hydrostatic Fluid Forces in Varying Clearance Turbomachinery Seals
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Varying clearance, rotor-following seals are a key technology for meeting the demands of increased machine flexibility for conventional power units. These seals follow the rotor through hydrodynamic or hydrostatic mechanisms. ...
Air–Sea Interaction in the Ligurian Sea: Assessment of a Coupled Ocean–Atmosphere Model Using In Situ Data from LASIE07
Publisher: American Meteorological Society
Abstract: n situ experimental data and numerical model results are presented for the Ligurian Sea in the northwestern Mediterranean. The Ligurian Sea Air?Sea Interaction Experiment (LASIE07) and LIGURE2007 experiments took place in ...
A New Mixing-Length Formulation for the Parameterization of Dry Convection: Implementation and Evaluation in a Mesoscale Model
Publisher: American Meteorological Society
Abstract: A realistic representation of the evolution of the dry convective boundary layer in mesoscale and large-scale atmospheric models has been an elusive goal for many years. In this paper the performance of a new mixing-length ...
Temperature and Water Vapor Variance Scaling in Global Models: Comparisons to Satellite and Aircraft Data
Publisher: American Meteorological Society
Abstract: bservations of the scale dependence of height-resolved temperature T and water vapor q variability are valuable for improved subgrid-scale climate model parameterizations and model evaluation. Variance spectral benchmarks ...