The ground-truth problem for satellite estimates of rain rate

G. R. North, J. B. Valdes, Ha Eunho Ha, S. S.P. Shen

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


A scheme is proposed to use a point raingage to compare contemporaneous measurements of rain rate from a single-field-of-view estimate based on a satellite remote sensor such as a microwave radiometer. A space-time spectral formalism is combined with a simple stochastic rain field to find the mean-square deviations between the two systems. It is found that by combining about 60 visits of the satellite to the ground-truth site, the expected error can be reduced to about 10% of the standard deviation of the fluctuations of the systems alone. This seems to be a useful level of tolerance in terms of isolating and evaluating typical biases that might be contaminating retrieval algorithms. -from Authors

Original languageEnglish (US)
Pages (from-to)1035-1041
Number of pages7
JournalJournal of Atmospheric & Oceanic Technology
Issue number4 part 1
StatePublished - 1994

ASJC Scopus subject areas

  • Ocean Engineering
  • Atmospheric Science


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