The Latest ALOMAR Potential Vorticity PlotThe Polar Vortex is characterized by a higher potential vorticity than the surroundings. For the 550 K level the airmasses within the vortex usually have a potential vorticity larger than 70 [10¯6 Km²/kgs].  Potential vorticity for the 550 K level of potential temperature (Approximately 22.7 km height).
Temperature for the 550 K level
of potential temperature (approximately 22.7 km height).
The temperature is given in kelvin (K). In order to have PSCs, a temperature lower than 193 K is required in this height. |
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