Accession Number : AD0010296


Title :   A QUANTITATIVE METHOD FOR THE PREDICTION OF RAINFALL PATTERNS


Corporate Author : CHICAGO UNIV IL


Personal Author(s) : Riehl, Herbert ; Norquest, Kenneth S ; Sugg, A L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/010296.pdf


Report Date : 30 Sep 1952


Pagination or Media Count : 21


Abstract : An equation is derived which relates the vertical motion of the lower troposphere to the vorticity field of the upper troposphere. A vorticity analysis shows that, under certain conditions, cloudiness and precipitation should prevail in regions where the vorticity decreases downstream along streamlines, while fair weather should prevail where the vortically increases along streamlines. Promising verifications of the precipitation-forecast method were obtained with observed and prognostic charts.


Descriptors :   *RAINFALL INTENSITY , *WEATHER FORECASTING , CLOUD COVER , ATMOSPHERIC PRECIPITATION , EQUATIONS , TROPOSPHERE , VORTICES , MOTION , VERTICAL ORIENTATION


Subject Categories : Meteorology


Distribution Statement : APPROVED FOR PUBLIC RELEASE