A Method of Testing the Validity of Long-Term Averages Based on the Seasonality of Climatological Variables

Abstract

A method is set forth which provides quality control of any meteorological data exhibiting a seasonal distribution. In-this study the set of all pairs representing a three-month consecutive average of "actual" climate variable and a three-month average derived from the central month are plotted in an x-y coordinate system. Procedures for identifying points which fall off the 1:1 line are discussed with implications for the accuracy of the method. The procedure can be automated for iterative data checking on a digital computer. The method is applicable to all situations where a quality check of average data from a number of stations is desired.