9th June 2004: 0700UTC
This image is prepared with another presentation technique. We recognise the violet V-formation directed to the West that is similar to the direction of the upper level wind. The light blue/turquoise small area just east of it indicates the warmer cloud tops.
9th June 2004: 0700UTC
The V-shaped structured patterns in the HRV channel indicates where intense convection happened.
9th June 2004: 0700UTC
The areas of higher WV temperatures than IR are marked in blue to violet. That can be seen at the flanks and the western peak of the „V“ indicating cloud tops above the tropopause that developed recently. Within that area we find an limited yellow area (WV colder than IR). The reason can be an overshooting some times ago. The cloud extended still above the tropopause yielding lower top temperatures than WV because the latter is influenced by the radiation from water vapour detrained before. There was enough time for adapting the temperature of the water vapour to the higher temperatures of the stratosphere. Because the WV channel represents the temperature of the water vapour gas and the IR the temperature of the cloud top we get the negative difference (WV minus IR). That fits well to the conceptual model about a V-Notch (Physical Background“, topic 5).
9th June 2004: 0700UTC
The yellow coloured regiones are connected to strong updraft and small ice particles due to severe convection and young convective cells. We find them at the northern and southwestern edge of the super-cell. Near to the centre of the convective cell we find also some bigger ice particles (orange coloured).
9th June 2004: 0700UTC
The yellow coloured regiones are connected to strong updraft and small ice particles due to severe convection. Strong updrafts happened at the western edge of the V-Notch and in the areas with structures cloudiness (taken from HRV) in combination with yellow.
