Radar Hydrology: New Z/R Relationships for Klang River Basin Malaysia based on Rainfall Classification
The use of radar in Quantitative Precipitation Estimation (QPE) for radar-rainfall measurement is significantly beneficial. Radar has advantages in terms of high spatial and temporal condition in rainfall measurement and also forecasting. In Malaysia, radar application in QPE is still new and needs to be explored. This paper focuses on the Z/R derivation works of radarrainfall estimation based on rainfall classification. The works developed new Z/R relationships for Klang River Basin in Selangor area for three different general classes of rain events, namely low (<10mm/hr), moderate (>10mm/hr, <30mm/hr) and heavy (>30mm/hr) and also on more specific rain types during monsoon seasons. Looking at the high potential of Doppler radar in QPE, the newly formulated Z/R equations will be useful in improving the measurement of rainfall for any hydrological application, especially for flood forecasting.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070981Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1790
 A. R. M Waleed, M. S. M. Amin, G. Abdul Halim , A. R. M.Sharif and W. Aimrun , "Calibrated radar-derived rainfall data for rainfall-runoff modeling,” European Journal of Scientific Research, ISSN 1450-216X Vol. 30, no. 4,pp. 608-619,2009
 J. Joss and A. Waldvogel, "Precipitation measurement and hydrology In: Radar in Meteorology. D. Atlas (ED.),” 557-606, 1990
 L. Peng, S. Xingyuan and T. Wenwen , " A study on Quantitative Radar Rainfall Measurements by the Method of Set-pair analysis,” IEEE, Global Congress on Intelligent Systems, DOI 10.1109/GCIS.2009..75, 2009
 S. Hunter, "WSR-88D Radar Rainfall Estimation : Capabilities, limitations and potential improvements,” NWA Digest ;20:26-36, 2009
 S. Chumchean, A. Sharma and A. Seed, "Radar Rainfall Error Variance and its Impact on radar Rainfall Calibration,” Physics and Chemistry of the Earth 28 (2003) 27-39, 2003
 M. Steiner, R. A. Houze-Jr and S. E. Yuter, "Climatological Characterization of three dimensional storm structure from operational radar and rain gauge data,” J. of Applied Meteorology., 34:1978-2007, 1995
 R. Sen , S. Uma and A. Santhakumaran, " Study of Z-R relationship over Gadanki for different rainfall rates,” Indian Journal of Radio and Space Physics, Vol.38, pp. 159-164, 2009
 L. J. Battan, " Radar observation of the atmosphere,” The University of Chicago Press, 1973
 J. S. Marshall ,and W. Palmer , "The distribution of raindrops with size,” J. of Meteor. 5,165-166, 1948.