THE USE OF RADIOSONDE OBSERVATIONS TO DIAGNOSE CLOUD AMOUNT IN LAYERS,
Abstract
Radiosonde observations are studied as a means for diagnosing cloud amount in layers as a supplement to airways observations used in objective analysis of clouds. The data used here consist of 1500Z cloud and radiosonde observa tions taken between Jan 1, 1949, and May 31, 1957, at 10 stations in the eastern United States. Five hundred cases were processed at each station, with the atmosphere divided into 3 layers. For each layer, a dependent variable (cloud amount) and between 29 and 33 independent variables (moisture, stability, and flow param eters) were computed. The entire set of speci fiers (independent variables) was examined for correlation with cloud amount, with the aid of a forward screening procedure which selects from the entire set a limited number of independent variables, each one of which contributes signifi cantly and independently toward explaining the variance of the dependent variable. Multiple linear-regression equations were then obtained relating cloud amount to the selected diagnostic variables. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1962
- Accession Number
- AD0413094
Entities
People
- John T. Ball