Singularities in Daily Rainfall

Abstract

Investigations are made of the observed singularities in January daily rainfall means at a number of Australian. stations. Simple graphical methods throw doubts on the random nature of a number of the series, and these doubts are strengthened by results of a significance test involving the parameters of the statistical distribution of daily rainfall. Further work will be necessary to decide whether the observed peaks are due to other than chance, because (i) in the January data the apparent effects were not observed at all the stations studied, and (ii) in a brief survey of some December and. February data the series appeared to be completely random.