Refer to figure.
Referring to the synoptic model of Station 2, which pattern best describes how the atmospheric pressure has evolved during the last three hours?
Refer to figures.
The pressure tendency on a synoptic plot is composed of two pieces of information placed to the right of the station circle: the pressure change value (in tenths of hPa, encoded on two digits) and the characteristic symbol plotted immediately next to. The characteristic symbol is a standardised pictogram that describes the evolution of the pressure over the last three hours.
At Station 2, the characteristic symbol plotted next to the pressure change value is a shape that first falls and then becomes horizontal, corresponding to the code "falling then steady". The net pressure change shown (15) in tenths of hPa gives a 1.5 hPa overall decrease, consistent with a falling then steady evolution.
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