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From CSU-CHILL
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- ...from the positive values associated with oblate raindrops to ~ 0dB in the hail region. ...ve more accurate results than reflectivity-based rain rate estimators when hail is present. ...4 KB (489 words) - 10:44, 2 November 2009
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- ...can be applied to '''identify the primary hydrometeor type''' (rain, snow, hail, etc.) ...t of hydrometeor classes. The membership functions for the rain and small hail classifications are shown below ...4 KB (642 words) - 14:30, 25 August 2008
- .... (Positive HDR values indicate hail; negative values are associated with rain): ...rain rate) fades while a new <math>K_{dp}</math> center develops near the hail shaft. ...2 KB (290 words) - 10:06, 19 September 2007
- ...derstorm. A series of plots documenting the time evolution of this hail / rain mixture have been prepared. ...fic differential propagation phase (Kdp) and to identify range gates where hail was a significant precipitation component. The grey shades in the following ...4 KB (595 words) - 15:38, 27 June 2011
- ...le storm passages at Platteville. All activity remained south of I-70. ZDR hail pattern developed in one of these storms and NWS BOU issued a warning. Shor [[Category:Hail|20060826]] ...650 bytes (78 words) - 14:44, 10 August 2007
- * [[An example of reflectivity-based rain rate over-estimation due to ice hydrometeor contamination on 18 August 2009 * [[:Category:Hail|Hail]] ...1 KB (167 words) - 00:09, 2 September 2009
- ...ferential attenuation can exaggerate the size of polarimetrically-inferred hail regions. ''Note: A correct indication of hail is seen in the ~0 dB <math>Z_{dr}</math> area marked by the cursor (white X ...2 KB (323 words) - 14:29, 25 August 2008
- ...service on the CSU-CHILL radar during the preceding month. Near 2300 UTC a hail-producing thunderstorm intensified a short distance northeast of the CHILL ...ly reaching -35 dB and below) are seen in the lower reflectivity / lighter rain areas of the storm. It appears that the dual offset feed antenna permits t ...2 KB (244 words) - 10:53, 30 September 2008
- ...from the positive values associated with oblate raindrops to ~ 0dB in the hail region. ...ve more accurate results than reflectivity-based rain rate estimators when hail is present. ...4 KB (489 words) - 10:44, 2 November 2009
- ...e:hail_loop.gif|frame|center|Zdr (lower panel) decreases to 0 dB (gray) as hail develops in the 5X5 km white square [[Image:dbz_scale_anot.png]][[Image:zdr ...ulse. <ref>Aydin, K., T. A. Seliga, and V. Balaji, 1986: Remote sensing of hail with a dual linear polarization radar. J. Climate and Appl. Meter., 25, 147 ...3 KB (508 words) - 09:52, 22 August 2007
- ==Hail Differential Reflectivity== The identification of hail in this presentation was done using the Hail Differential Reflectivity (HDR) parameter (Aydin et al, 1986). Differential ...5 KB (825 words) - 21:40, 22 July 2011
- ...tinuous series of low elevation angle 360 degree PPI scans in support of a rain mapping project. The following plots were extracted from a single PPI swee ...to a severe weather spotter report logged at 2235 UTC, 1.75 inch diameter hail was observed in this high reflectivity area. The storm spotter location is ...5 KB (760 words) - 01:19, 1 February 2009
- *2108: rain begins *2129: small hail begins (code GS; maximum hailstone diameter under 0.25 inches) ...5 KB (831 words) - 21:38, 22 July 2011
- Very heavy rain and hail up to .75 inches in diameter were observed at the Denver ...,Zdr); R(Kdp), etc.). (An outline of the original version of this blended rain estimation scheme can be found in Cifelli et al., JGR 2002). The NCAR SPRI ...3 KB (407 words) - 19:24, 27 July 2009
- ...er hour (10 inches per hour) can be seen. The spatial configuration of the rain rate fields also displays significant evolution even in these short time in ...the rain gage funnel by an accumulation of hailstones may have reduced the rain gage catch. ...3 KB (423 words) - 23:06, 27 July 2008
- Marginal severe thunderstorm in terms of surface wind speeds and hail diameters occurred at the Pawnee radar site around 2220 UTC. Additional sto Problems: Pawnee data collection stopped early at 2330 UTC when rain water apparently entered a power supply in the antenna drive control system ...600 bytes (76 words) - 14:39, 10 August 2007
- ...age of the Denver area as several thunderstorms crossed the urban flooding rain gage network. ...658 bytes (100 words) - 05:45, 7 January 2008
- [[Image:26sept2012 hail overview anot.png|300px|right]] ...the differential reflectivity to 0 dB in the shaded area. Plots comparing hail detection methods based on Zdr and on reflectivity differences at S and X-B ...4 KB (597 words) - 15:42, 25 July 2013
- ...rative Rain, Hail and Snow network (CoCoRaHS) reported that 2.25 inches of rain fell in the 24 hour period ending at 0700 MDT on 7 July. ...stones. (The spotter reports confirmed the existence of .75 inch diameter hail): ...6 KB (868 words) - 11:36, 12 November 2010
- ...ILL data collection ened near 0000 UTC. According to NWS radar data, heavy rain production continued into the evening along an axis from Aurora northeastwa ...1 KB (223 words) - 05:44, 7 January 2008
- ...rculations on this interface, dual-polarization indications of heavy rain, hail, etc. were also observed. ...inch diameter hail 1 mile south of Brush at 2316 UTC and 1.0 inch diameter hail and 60 mph wind gusts 5 miles northeast of Brush at 2333 UTC. An RHI volum ...4 KB (693 words) - 13:49, 29 April 2011
