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Estimating Rainfall in the Tropics Using the Fractional Time Raining
Journal article

Estimating Rainfall in the Tropics Using the Fractional Time Raining

Mark L Morrissey, Witold F Krajewski and Michael J McPhaden
Journal of applied meteorology (1988), Vol.33(3), pp.387-393
03/1994
DOI: 10.1175/1520-0450(1994)033<0387:ERITTU>2.0.CO;2

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Abstract

The relationship between the fractional time raining and tropical rainfall amount is investigated using raingage data and a point process model of tropical rainfall. Both the strength and the nature of the relationship are dependent upon the resolution of the data used to estimate the fractional time raining. It is found that highly accurate estimates of rainfall amounts over periods of one month or greater can be obtained from the fractional time raining so long as high-time-resolution data are used. It is demonstrated that the relationship between the fractional time raining and monthly atoll rainfall is quasi-homogeneous within the monsoon trough region of the equatorial western Pacific.

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