The following graphic shows the average of the wind direction at 1000 hPa for July 2021 decade 3. The second graphic shows the anomlies to the reference period.
The following graphic shows a high pressure area in the northern hemisphere:
A low pressure area in the northern hemisphere appears like the following graphic:
In the southern hemisphere the pressure areas are rotating in the opposite direction because the Coriolis force is inverted. So the colors are also inverted.
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|Wind scales||Tropopause||NAO Index||Solar irradiance|
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