A World of Weather: Chapter 5 Laboratory Question
Chapter 5
11. In Figure 5.19(a-c), you are given isoplethed maps
of vapor pressure, dew point, and relative
humidity at the surface at 12Z on May 20, 1995.
- Using these three maps, argue why the dew point is
a
much better measure of the actual water vapor
content
of the air than the relative humidity is.
- Now take a journey across the map using the 10-mb
vapor
pressure isopleth as your road, starting at point
A and
ending at point T. At each point along the way,
estimate the dew point and the relative humidity,
and
graph both (dots are supplied on the dew point and
relative humidity maps to help). Which varies the
most
as you ride the isopleth of constant vapor
pressure?
Why do you think there is such large variability?