Typical Appearance In Vertical Cross Sections
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16 February 2015/12 UTC - Meteosat IR 10.8 image; position of vertical cross section indicated
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- Thetae
Thetae decreases down the slope. - Temperature advection
The cold advection above the slope is very strong up to the mid-troposphere. - Relative humidity
The airstream down the slope is very dry, with values of relative humidity even below 10 %. - Divergence
A strong zone of convergence forms above the slope, followed by an area of divergence to counterbalance the vertical motions. - Vertical motion (omega)
The descending motion above the slope is prominent. - Isotachs
There is a wind maxima over the deepest part of the slope. In case of an occlusion also a jet core is situated near the tropopause.
Temperature Advection
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16 February 2015/12 UTC - vertical cross section; black: isentropes (Θe), blue: cold advection, red: warm advection
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Relative Humidity
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16 February 2015/12 UTC - vertical cross section; black: isentropes (Θe), green: relative humidity > 69 %, yellow: relative humidity < 70 %
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Divergence
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16 February 2015/12 UTC - vertical cross section; black: isentropes (Θe), solid red line: convergence, dashed red line: divergence
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Omega
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16 February 2015/12 UTC - vertical cross section; black: isentropes (Θe), solid cyan line: ascend, dashed cyan line: descent
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Isotachs
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16 February 2015/12 UTC - vertical cross section; black: isentropes (Θe), light brown: isotachs from 30 m/s up in 10 m/s intervals
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