Estimation of mean rain rate: Application to satellite observations Academic Article uri icon

abstract

  • A method for the estimation of the mean area average rain rate from dependent data is developed and applied to the GARP Atlantic Tropical Experiment GATE data. The method consists of fitting a mixed distribution, containing an atom at zero, by minimum chi-square in combination with certain time-space sampling designs. In modeling the continuous component of the mixed distribution it is shown that the lognormal distribution provides a very close fit for the nonzero area average rainrates. Some of the time-space sampling designs correspond to satellite sampling. The results indicate that a satellite visiting an area of about 350 × 350 km2 in the tropics approximately every 10 hours over a period can provide a rather close estimate for the mean area average rain rate. -from Authors

altmetric score

  • 3

author list (cited authors)

  • Kedem, B., Chiu, L. S., & North, G. R.

citation count

  • 91

publication date

  • February 1990