Wind Vectors 1000 hPa:
In the area of the Convergence Cloudiness over the Norwegian sea and Norway a distinct confluence can be seen in the
wind vectors. This is typical for Convergence Cloudiness which develops in an area close to an Occlusion spiral and fits
into the ideal configuration of this conceptual model.
Wind Vectors 850 hPa:
The same can be said for the wind in 850 hPa as for the wind in 1000 hPa. There is - according to the ideal configuration
- a distinct confluence in this area.
Wind Vectors 700 hPa:
The same can be said for the wind in 700 hPa as for the wind in 1000 and 850 hPa. There is - according to the ideal
configuration - a distinct confluence in this area. Therefore the whole area of about 3 kilometers thickness shows this
confluence which contribute to convergence.
TFP:
The maximum line of the TFP accompanies the frontal cloud band and the Occlusion spiral. In the area of the Convergence
Cloudiness a second branch of a positive TFP can be observed which fits to the idea in this conceptual model that frontal
characteristics can develop.
Equivalent Thickness:
While the cloud bands of the Cold Front and the Warm Front are accompanied by areas of a high thickness gradient and the
Occlusion spiral by a ridge in the thickness, for the Convergence Cloudiness no typical configurations do exist. This is
also true for this case study.
Temperature Advection 700 hPa:
While there are distinct distributions of TA in the area of the Cold and Warm Fronts and in the Occlusion spiral, the
Convergence Cloudiness is in an area of gentle WA. This fits well with the typical configuration for this conceptual model.
Divergence:
According to the name of this conceptual model, convergence is an important parameter and mainly responsible for the
development of this cloud. In this case there is in addition to high values of convergence in the Occlusinon cloud band
a side branch of convergene (negative values) in the Convergence Cloudiness. This fits very well with the typical
conceptual model.