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A Baroclinic Boundary is accompanied by a stationary front-like cloud band situated at synoptic positions which are not typical for classical fronts.



Common Remarks

Baroclinicity means that in the atmosphere surfaces of constant pressure intersect surfaces of constant temperature (or density), implying that on a surface of constant pressure there exists a temperature gradient. Consequently a horizontal stream on a pressure surface causes a change in temperature.

In general the atmosphere is in a baroclinic state. But there are self contained areas with stronger baroclinicity like i.e. fronts. This is also true for the CM under discussion, the Baroclinic Boundary.

Baroclinicity is represented in this manual with help of indicative model parameter fields:

The second word in the title of this CM is "Boundary". This is understood to be a boundary of a synoptic system (i.e. height contours at upper levels, e.g. 500 hPa) such as an upper level trough or an Upper Level Low. Consequently, a Baroclinic Boundary cloud is not situated at typical locations for frontal cloudiness, i.e. at the leading side of a trough.

Furthermore Baroclinic Boundaries are distinguished from stationary fronts and air mass boundaries.


I. Cloud Structure In Satellite Images

Learn about how to recognise and detect Baroclinic Boundary in satellite images.

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II. Meteorological Physical Background

Find out more about the meteorlogical and physical background of Baroclinic Boundary.

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III. Key Parameters

Learn which key parameters to use for Baroclinic Boundary

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IV. Typical Appearance In Vertical Cross Sections

Find out the typical appearance of Baroclinic Boundary in vertical cross section

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V. Weather Events

Explore the weather events associated with Baroclinic Boundary

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VI. References

Let these comprehensive documents in the references assist you in finding more about Baroclinic Boundary

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