Accession Number:

AD0010296

Title:

A QUANTITATIVE METHOD FOR THE PREDICTION OF RAINFALL PATTERNS

Descriptive Note:

Corporate Author:

CHICAGO UNIV IL

Personal Author(s):

• Riehl, Herbert
• Norquest, Kenneth S.
• Sugg, A. L.

Report Date:

1952-09-30

Pagination or Media Count:

21.0

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