Search
Now showing items 1-10 of 33
Vanes for Sensing Incidence Angles of the Air from an Aircraft
Publisher: American Meteorological Society
Abstract: Two types of vanes that were used to measure the angle of the airstream with respect to an aircraft are described, analyzed and compared. One type is a rotating vane that is free to align itself with the airstream and the ...
Airplane Measurements of Planetary Boundary Layer Structure
Publisher: American Meteorological Society
Abstract: Measurements of air velocity and temperature from an airplane in the planetary boundary layer with strong surface heating are used to calculate vertical heat, momentum and energy fluxes, as well as spectral densities and ...
Model of the Height Variation of the Turbulence Kinetic Energy Budget in the Unstable Planetary Boundary Layer
Publisher: American Meteorological Society
Abstract: A model is proposed for the variation with height of the terms in the turbulence kinetic energy budget throughout an unstably stratified barotrople planetary boundary layer. The model is based upon aircraft measurements ...
Two Examples of Planetary Boundary Layer Modification Over the Great Lakes
Publisher: American Meteorological Society
Abstract: Aircraft measurements of sensible and latent heat fluxes, surface and air temperature, mean wind and humidity were used to examine the boundary layer structure over the Great Lakes for two cases in late fall when the water ...
An Observational Study of the Role of Penetrating Cumulus in a Marine Stratocumulus-Topped Boundary Layer
Publisher: American Meteorological Society
Abstract: Isolated cumuli penetrating through marine stratocumulus clouds were documented during the Atlantic Stratocumulus Transition Experiment. This paper aims at understanding the role of the penetrating cumulus in regulating ...
Growth Dynamics of the Convectively Mixed Layer
Publisher: American Meteorological Society
Abstract: A model for the growth of a convectively mixed layer is derived by layer integrating the basic equations and parameterizing unknown terms in the mixed layer turbulence kinetic energy equation by means of free convection ...
An Observational Investigation of Penetrative Convection
Publisher: American Meteorological Society
Abstract: Data taken during the Air Mass Transformation Experiment (AMTEX) by the NCAR Electra aircraft have proven useful for investigating the structure of thermals penetrating into the turbulent inversion layer which caps the ...
Stratiform Cloud Formation in the Marine Boundary Layer
Publisher: American Meteorological Society
Abstract: Observations of stratiform clouds in a region several hundred kilometers west of the southern California coast were made from the NCAR Electra research aircraft in the summer of 1987 during the First ISCCP (International ...
On the Measurement of In-Cloud and Wet-Bulb Temperatures from an Aircraft
Publisher: American Meteorological Society
Abstract: Measurements of air temperature with an immersion thermometer from an aircraft are invariably affected by the increased temperature of the decelerated air in the vicinity of the element. For dry air and a dry thermometer ...
How Long Is Long Enough When Measuring Fluxes and Other Turbulence Statistics?
Publisher: American Meteorological Society
Abstract: It is determined how long a time series must be to estimate covariances and moments up to fourth order with a specified statistical significance. For a given averaging time T there is a systematic difference between the ...