Journal article
Oceanic Rainfall Estimation: Sampling Studies of the Fractional-Time-in-Rain Method
Journal of atmospheric and oceanic technology, Vol.14(1), pp.133-142
02/1997
DOI: 10.1175/1520-0426(1997)014<0133:ORESSO>2.0.CO;2
Abstract
The relationship between monthly mean area-averaged rainfall and monthly mean fractional rainfall occurrence is used to develop a new method of open ocean rainfall estimation. This method uses acoustic sensors attached to drifting buoys to sample rainfall occurrence in space and time. The fractional rainfall occurrences measured by the sensors are used in a linear relationship to estimate monthly rainfall averaged over large (i.e., 2.5° × 2.5°) areas. This estimation method is tested for different scenarios using a stochastic model. Results support the feasibility of this new rainfall estimation scheme. Simulations show that the existing density of drifting buoys is inadequate, but densities around 10 times the existing density will give correlation coefficients between estimated and true rainfall around 0.55. Estimates obtained with this method may be used to calibrate and/or validate the satellite-based methods of open ocean rainfall.
Details
- Title: Subtitle
- Oceanic Rainfall Estimation: Sampling Studies of the Fractional-Time-in-Rain Method
- Creators
- Jeffrey R McCollumWitold F Krajewski
- Resource Type
- Journal article
- Publication Details
- Journal of atmospheric and oceanic technology, Vol.14(1), pp.133-142
- DOI
- 10.1175/1520-0426(1997)014<0133:ORESSO>2.0.CO;2
- ISSN
- 0739-0572
- eISSN
- 1520-0426
- Language
- English
- Date published
- 02/1997
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9983991947702771
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