Synoptic Situation: Satellite images and derived numerical parameters
Basic parameters like surface pressure (height of 1000 hPa) and upper level height (here at 300 hPa) do not reveal the whole physical background of a situation and can therefore not explain details seen in the cloud features of satellite images as well as in the different conceptual models.
Therefore, in order to understand the processes that lead to certain cloud configurations, it is usually necessary to consult different derived physical parameters.
Meteosat 8 IR10.8 and Thermal Frontparameter + Relative Topography: time sequence
In this chapter the large N-S oriented frontal zone over Western Europe is presented using the Thermal Front Parameter. Along with this parameter also the relative topography is shown.
Meteosat 8 IR10.8 and Temperature Advection 850 hPa.: time sequence
In this chapter the development of the several convective cells is related to the Temperature Advection at 850 hPa. It is overlayed on Meteosat 8 IR10.8 imagery and presented in 6-hour sequence.
Meteosat 8 IR10.8 and Showalterindex: time sequence
One way of characterising the stability of the atmosphere is by making use of the Showalterindex. Values under 0 are a sign of a lable atmosphere. Values under -3 are very unstable and are related to thunderstorms.