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Divergent outflow from the convective cloud system in the airmass RGB, (WV6.2-WV7.3), WV6.2, WV7.3 images 2008.06.25.-26. Mária Putsay and André Simon.

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Presentation on theme: "Divergent outflow from the convective cloud system in the airmass RGB, (WV6.2-WV7.3), WV6.2, WV7.3 images 2008.06.25.-26. Mária Putsay and André Simon."— Presentation transcript:

1 Divergent outflow from the convective cloud system in the airmass RGB, (WV6.2-WV7.3), WV6.2, WV7.3 images 2008.06.25.-26. Mária Putsay and André Simon Hungarian Meteorological Service Convection Working Group workshop, Landshut 8-10 October 2009 20:40 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB

2 SEVIRI 20:40 UTC radar 20:45 UTC We see divergent outflow in the WV7.3 image. (TB dif < 1K) relative sharpe edge from 20-21, wave What is the physical process behind? -- High-level divergent outflow + it is seen in WV7.3 as well because of the higher absorbtion in that region. However the edge of the dark region is sharper in WV7.3, than the edge of the bright region in WV6.2. -- Mid-level divergent outflow of warm/dry air. It can be warm/dry level of condensation. Outflow?? -- Low-level divergent outflow, Strong downdrafts can occur just besides the convective cell, then making dryer the mid- to low level, + some cirrus can remain at upper-level. squall line at the leading edge -- Something else?

3 00:40 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 00:55 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 01:10 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 01:25 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 01:40 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 01:55 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 02:10 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 02:25 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 03:25 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB 04:40 UTC WV6.2 WV7.3 WV6.2-WV7.3Night RGB Airmass RGBDay and night RGB

4 Low- and high-level outflow at the same time?


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