Measuring Pressure at
the surface - reducing pressure to sea level
A: We can reduce
the pressure measurements to sea level using the
in the lower part
of the atmosphere, pressure changes by about 10
mb for every 100 meters of elevation change....
Using this rule,
we reduce all pressure measurements to sea level,
producing a constant elevation sea-level pressure (SLP)
chart ..., commonly
referred to as a surface weather map
How is pressure represented above the surface????
QUESTION FOR THOUGHT:
1. Pilots often use the
expression "high to low, look out below." In terms of upper-level
temperature and pressure, explain what this can mean?