Sea Level Pressure and Height of Pressure Surface
See also: Sea level pressureOn the top right corner of the model for a surface weather map is the pressure, showing the last two integer digits of the pressure in millibars, or hectopascals, along with the first decimal. For instance, if the pressure at a certain location is 999.7 hPa, the pressure portion of the station model will read 997. Although the first digit or two of the pressure is left off, other nearby stations give away whether or not the first digits is a 10 or a 9. Most of the time, choosing first digits that would lead to a value nearest to 1000 works out best. The plotting of this value within the station model allows for the analysis of isobars on weather maps. Within maps which plot data on constant pressure surfaces, the pressure is replaced with the height of the pressure surface.
Read more about this topic: Station Model
Famous quotes containing the words sea, level, pressure, height and/or surface:
“They that go down to the sea in ships, that do business in great waters, these see the works of the Lord and his wonders in the deep.”
—Bible: Hebrew Psalms, 107:23-4.
“Even a nine story pagoda must be built up level by level.”
—Chinese proverb.
“He who is of a calm and happy nature will hardly feel the pressure of age, but to him who is of an opposite disposition youth and age are equally a burden.”
—Plato (c. 427–347 B.C.)
“To achieve harmony in bad taste is the height of elegance.”
—Jean Genet (1910–1986)
“Nature centres into balls,
And her proud ephemerals,
Fast to surface and outside,
Scan the profile of the sphere;
Knew they what that signified,
A new genesis were here.”
—Ralph Waldo Emerson (1803–1882)