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Last modified
11/23/2009 12:57:58 PM
Creation date
10/4/2006 10:36:15 PM
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Template:
Floodplain Documents
County
Gilpin
Community
Black Hawk/ Central City
Title
Black Hawk/Central City Colorado Radar Rainfall Reconstruction
Date
7/30/1998
Prepared For
Gilpin County
Prepared By
HDR Engineering, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br /> <br />Figure 2. Blown up portion of the grid containing Unnamed gulch, <br /> <br />radar-estimated storm total rainfall from 1247 MDT through 1323 MDT and 1404 MDT through <br />1416 MDT across a grid, The grid in figure 1 covers an area of approximately 92 miz, and <br />encompasses the following waterways: Unnamed Gulch, Gregory Gulch, Nevada Gulch, and <br />Eureka Gulch. The average estimated rainfall across the Unnamed Gulch basin was 1.45", which <br />was produced by two thunderstorm cells with a total rainfall duration of approximately 48 minutes. <br /> <br />Radar reflectivity values (dBz) Radar reflectivity <br />..levels <br />25 1 <br />W 2 <br />~ 3 <br />~ 4 <br />~ 5 <br />W 6 <br />~ 7 <br />W 8 <br />~ 9 <br />70 10 <br />~. ._ 75 11 <br />Table 2, Relationship between radar reflectivity values (dBz) and HDR derived radar reflectivity levels, <br /> <br />5 <br /> <br />
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