Journal article
A COMPARISON OF METHODS FOR CALCULATION OF RADAR‐RAINFALL HOURLY ACCUMULATIONS1
JAWRA Journal of the American Water Resources Association, Vol.32(2), pp.305-315
04/1996
DOI: 10.1111/j.1752-1688.1996.tb03453.x
Abstract
We compared two interpolation schemes for calculation of hourly accumulation of radar‐rainfall. The schemes are: (1) the Advection Method, and (2) the Space‐Time Kriging Method. The performance of the methods is investigated using numerical simulation experiments. Space‐time evolution of rainfall fields is generated from a stochastic model. The generated fields are sampled following typical radar scanning strategies, and the investigated schemes are applied to obtain accumulated rainfall patterns. The statistical results and a visual analysis of the graphical images suggest that it is advisable to use an interpolation scheme for radar observations even when storm velocity is not high. The Space‐Time Kriging Method provides the best results for low wind velocity. The Advection Method has the smallest standard deviation and mean absolute error, and preserves well the true rainfall pattern for high wind velocity.
Details
- Title: Subtitle
- A COMPARISON OF METHODS FOR CALCULATION OF RADAR‐RAINFALL HOURLY ACCUMULATIONS1
- Creators
- Chunyan Liu - University of IowaWitold F Krajewski
- Resource Type
- Journal article
- Publication Details
- JAWRA Journal of the American Water Resources Association, Vol.32(2), pp.305-315
- Publisher
- Blackwell Publishing Ltd; Oxford, UK
- DOI
- 10.1111/j.1752-1688.1996.tb03453.x
- ISSN
- 1093-474X
- eISSN
- 1752-1688
- Number of pages
- 11
- Language
- English
- Date published
- 04/1996
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9983992074302771
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