Accession Number : ADA118429

Title :   Objective Analysis of Climatological Probability Data.

Descriptive Note : Final rept. Jan 81-Mar 82,

Corporate Author : AIR FORCE ENVIRONMENTAL TECHNICAL APPLICATIONS CENTER SCOTT AFB IL

Personal Author(s) : Lilius,Bryan E ; Wirsing,Frederick C ; Cox,Robert M

PDF Url : ADA118429

Report Date : Jul 1982

Pagination or Media Count : 105

Abstract : This report describes a method for compacting, accessing, and objectively analyzing ceiling/visibility probability data. Unconditional cumulative probabilities over the southern half of West Germany are analyzed. The technique used to compact the data uses less than one-eighth of the computer storage normally required. The accuracy of the data was only slightly impaired. Three objective analysis algorithms were investigated; Barnes, Janota, and nearest neighbor. The Barnes method performed best. Independent data were estimated, using this technique with a mean error of 3.2 percent.

Descriptors :   *Data compression, *Climate, *Ceiling, *West Germany, Probability, Methodology, Accuracy, Algorithms, User needs, Requirements, Interpolation, Visibility

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE