2013
DOI: 10.1175/jtech-d-12-00083.1
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C-Band Polarimetric Radar QPE Based on Specific Differential Propagation Phase for Extreme Typhoon Rainfall

Abstract: To obtain accurate radar quantitative precipitation estimation (QPE) for extreme rainfall events such as land-falling typhoon systems in complex terrain, a new method was developed for C-band polarimetric radars. The new methodology includes a correction method based on vertical profiles of the specific differential propagation phase (VPSDP) for low-level blockage and an optimal relation between rainfall rate (R) and the specific differential phase (K DP ). In the VPSDP-based correction approach, a screening p… Show more

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Cited by 27 publications
(19 citation statements)
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“…The ( DP ) relation is also able to provide more accurate QPE than other estimators during heavy rain events [9]. However, DP data may become unavailable when the radar beam is severely or entirely blocked [8]. Higher tilt DP data needs to be used in the rainfall rate estimation under this situation, and a correction for the vertical variation is necessary to achieve accurate estimations.…”
Section: Processing Of the Specific Differential Phasementioning
confidence: 99%
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“…The ( DP ) relation is also able to provide more accurate QPE than other estimators during heavy rain events [9]. However, DP data may become unavailable when the radar beam is severely or entirely blocked [8]. Higher tilt DP data needs to be used in the rainfall rate estimation under this situation, and a correction for the vertical variation is necessary to achieve accurate estimations.…”
Section: Processing Of the Specific Differential Phasementioning
confidence: 99%
“…Higher tilt DP data needs to be used in the rainfall rate estimation under this situation, and a correction for the vertical variation is necessary to achieve accurate estimations. Wang et al [8] proposed a VPSDP-based correction approach in which a predefined mean VPSDP was determined from 24-hour data and then used to adjust high altitudes DP to the ground level (or the radar level, whichever is higher).…”
Section: Processing Of the Specific Differential Phasementioning
confidence: 99%
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“…Morakot landed on Taiwan at midnight (local time) on 8 August and brought a maximum accumulated precipitation of 2600 mm during 4 days (Wang et al 2013). Morakot landed on Taiwan at midnight (local time) on 8 August and brought a maximum accumulated precipitation of 2600 mm during 4 days (Wang et al 2013).…”
Section: B Cases II and Iiimentioning
confidence: 99%