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Last modified
1/25/2010 6:27:28 PM
Creation date
10/4/2006 11:48:58 PM
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Floodplain Documents
County
Statewide
Basin
Statewide
Title
Sensitivity of WSR-88D Rainfall Estimates to the Rain Rate Threshold and Rain Gauge Adjustment: A Flash Flood Case Study
Date
6/8/1998
Prepared By
NOAA
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />estimate, c) total number of ga.uge-radar pairs available, and d) the number of pairs that passed <br /> <br />the quality control steps and contributed to the computed bias estimate. <br /> <br />Fig. 7. Log-log ,scatter plots of the hourly gauge and radar rainfall amounts for all available <br /> <br />pairs. Filled (open) circles represent pairs that were (were not) included in the computed bias <br /> <br />estimate for that hour. The time of bias estimation (in decimal hours UTC) is shown at the top of <br /> <br />each panel. <br /> <br />Fig. 8. Log-log scatter plots of storm-total gauge-radar pairs for the case with the rain rate <br /> <br />threshold set to 74.7 rnm/hr (51 dBZ). Symbol descriptions are given in the text. The top row of <br /> <br />points associated with the larg1est gauge observation (68 mm=2.68 inches) are those pairs <br /> <br />associated with the public stonn-total gauge report in the town of Buffalo Creek. <br /> <br />Fig. 9. Same as Fig. 6 except that the radar estimate collocated with the gauge location (the <br /> <br />center bin of the 3x3 bins) was chosen in forming the gauge-radar pairs used in the Adjustment <br /> <br />algorithm. <br /> <br />Fig. 10. Same as Fig. 7 except that the radar estimate collocated with the gauge location (the <br /> <br />center bin of the 3x3 bins) wa:;, chosen in forming the gauge-radar pairs used in the Adjustment <br /> <br />algorithm. <br /> <br />Fig. II. Log-log scatter plots of adjusted storm-total gauge-radar pairs for the rain rate threshold <br /> <br />32 <br />
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