Search
Now showing items 1-10 of 12
A STUDY OF VERTICAL VELOCITIES IN THE VICINITY OF JET STREAMS
Publisher: American Meteorological Society
Abstract: Three-hour average vertical velocity values are computed at the 500-and 300-mb levels under the assumption of adiabatic motion by the ?isobaric? technique. The patterns of the isolines of vertical velocity (isanabats) are ...
An Iterative Method for Altering the Kinematic Properties of Wind Fields
Publisher: American Meteorological Society
Abstract: Grid-point values of eastward and northward wind components imply that specific fields of divergence, vorticity and deformation exist. For certain purposes, one may wish to change the winds slightly to make them non-divergent, ...
Direct Computation of Geostrophic Winds from Observed Winds Using the Balance Equation
Publisher: American Meteorological Society
Abstract: In certain meteorological problems it is desirable to make a grid-point analysis of observed winds. In order to combine a wind analysis with other quantities, or to use the wind analysis in a numerical model, one may wish ...
The Mesoscale Structure of Some Regions of Clear-Air Turbulence
Publisher: American Meteorological Society
Abstract: The structure of the atmosphere in regions of clear-air turbulence is investigated by means of aircraft observations of wind and temperature in combination with objective and subjective turbulence records. The nature of ...
COMPUTATION AND USES OF GRADIENT WINDS
Publisher: American Meteorological Society
Abstract: The viewpoint is taken that in large portions of the atmosphere, wind speeds (Vgr), divergence (Dgr), and vorticity (?gr) obtained under the gradient wind assumption are considerably more accurate representations of true ...
The Relationship of Satellite-Inferred Stratospheric Aerosol Extinction to the Position of the 50-mb North Polar Jet Stream
Publisher: American Meteorological Society
Abstract: Particulate extinction profiles measured by the satellite-borne SAM II and SAGE I sensors have been used to investigate the relationship between stratospheric aerosols (between 15 and 30 km) and the location of the north ...
Automatic Cloud Tracking Applied to GOES and METEOSAT Observations
Publisher: American Meteorological Society
Abstract: Improvements to the SRI automatic cloud-tracking system are described that enable it to operate on multilayer clouds associated with severe storms. The improved method has been tested using rapid-scan observations of ...
Statistical Analysis of Precipitation Chemistry Measurements over the Eastern United States. Part III: The Ionic Balance among Chemical Constituents
Publisher: American Meteorological Society
Abstract: The relationships between acidity and the principal chemical constituents of precipitation (including sulfate, nitrate, ammonium, calcium, magnesium, sodium, and chloride) were investigated using a new archive of daily ...