a Weather map. if merely a chart taken in one location ( not strictly speaking a Map- which implies something geographical, lilke a map of New Jersey)- it might be called a Barograph. This would give the barometic readings in chart form over a given period of time. The device uses a chart recorder for the time element. Maybe that is what you have in mind.
On a weather map, the lines that connect points with equal barometric pressure are called Isobars.Iso = equalbar = pressure
The boundary where air masses meet becomes a?
Air pressure
Isobar
Those lines are "isobars."
An isoline is used on maps to represent points of equal value. The isoline for air pressure is an isobar.
They are called isobars.
On a weather map, the lines that connect points with equal barometric pressure are called Isobars.Iso = equalbar = pressure
The boundary where air masses meet becomes a?
Synoptic Map.
air pressure
A diagram of air pressure could be represented on a weather map. This map would use isobars - lines that connect areas with the same atmospheric pressure - to show areas of high and low pressure. The spacing of the isobars indicates the strength of the pressure gradient, which affects wind speed and direction.
Lines of Barometric pressure
In that context, "MAP" stands for "Manifold Air Pressure". The sensor is detecting the pressure of the intake air and it's usually on the air cleaner, the manifold or the throttle body.
air pressure
Air pressure
an area with low air pressure