SUUNTO Elementum Terra - Manual (Page 25)

NOTE: If you are at a constant altitude and the weather changes very fast, the
watch may interpret the air pressure change as movements in altitude and change
the altitude value.
USER EXAMPLE: WEATHER CHANGE WHILE SLEEPING
You slept overnight at camp and the weather in the morning is worse than yesterday
evening. In the morning, the barometric trend arrow is still horizontal but the sea
level air pressure shown on the outer rim is lower. Based on this, you can assume
that the weather today is not as good as yesterday because the sea level air pressure
has dropped. However, the change has been slow, as it has not affected the
barometric trend arrows.
z Z z
3.5 Moving in altitude
If you are moving in altitude (more than 5 meters of vertical movement within
3 minutes), the watch interprets all pressure changes as movements in altitude.
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