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another CIMSS blog on Lee
Posted by cypresstx on 9/2/2011, 7:36 pm
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Posted by cypresstx on 9/2/2011, 7:36 pm
http://cimss.ssec.wisc.edu/goes/blog/archives/8817 McIDAS images of 4-km resolution GOES-15 10.7 m IR data showed the transition of Tropical Depression #13 into Tropical Storm Lee in the northern Gulf of Mexico on 02 September 2011. Deep convection persisted within the eastern semi-circle of the system, with large areas exhibiting cloud top IR brightness temperatures of -80 C and colder (violet color enhancement) prior to Lee reaching tropical storm intensity. A comparison of AWIPS images of 1-km resolution POES AVHRR 0.63 m visible channel and 10.8 m IR channel data (below) revealed a few vigorous overshooting tops embedded within the convective region, with one feature located southeast of the circulation center having an IR brightness temperature value of -93 C (darker violet color enhancement).  About 2 hours later, a similar comparison of 1-km resolution MODIS 0.65 m visible channel and 11.0 m IR channel images (below) showed overshooting tops with IR brightness temperatures as cold as -89 C.  |
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another CIMSS blog on Lee - cypresstx, 9/2/2011, 7:36 pm
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