Satellite sampling and the diurnal cycle statistics of Darwin rainfall data

V. V. Soman, J. B. Valdes, G. R. North

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33 Scopus citations


This paper presents an analysis of rainfall data based on the radar echoes collected in the vicinity of Darwin, Australia, during the special observation periods in 1988, available for approximately 19 days in the first subset and for 22 days in the second. Since the rainfall data were taken over both the land and the ocean, separate analyses were performed for land and ocean surfaces; thus, three univariate time series (for land, ocean, and combination) are presented for each set. Time series analysis was performed in both time and frequency domains, and both the correlogram and periodogram showed the presence of a strong diurnal cycle in all the time series. To analyze the effect of the diurnal cycle on the sampling errors, flush visits of idealized satellites were simulated. The root-mean-square errors were especially large for satellites with sampling intervals of 6 and 12 h. -from Authors

Original languageEnglish (US)
Pages (from-to)2481-2490
Number of pages10
JournalJournal of Applied Meteorology
Issue number11
StatePublished - 1995

ASJC Scopus subject areas

  • Atmospheric Science


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