Air Masses Page: 5 of 16
iii, 12 p. : ill., maps ; 27 cm.View a full description of this pamphlet.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
FRAME 1
An air mass is defined as any large body of air whose physical properties (temperature and
humidity) are horizontally uniform. An understanding of the characteristics of an air mass is
essential to any comprehensive study of a direct result of the continuous alternation of the
influence of warm and cold air masses. Warm air masses predominate in the summer and cold air
masses predominate in the winter. However, both cold and warm air, alternately, may prevail
almost anywhere in the temperature zone at any season. The basic characteristics of any air mass
are temperature and humidity. These properties are relatively uniform throughout the extent of
the air mass, and it is by measurement of these properties that the various types of air masses are
determined .___AC
CROSS SECTIONHORIZONTAL UNIFORMITY OF AN AIR MASS
Properties of air at A and D are about the same as B and C.
Properties of air at E and F are about the same as G and H.
In the illustration, you would expect the physical properties (temperature and humidity) of the air mass to
be the same ata.
b.
-all points.
point A and E, but different at point A and B.
point A and C, but different at point B and F.
point F and H, but different at point C and D.1
Upcoming Pages
Here’s what’s next.
Search Inside
This pamphlet can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Pamphlet.
Snyder, Henry W. Air Masses, pamphlet, February 1971; Texas. (https://texashistory.unt.edu/ark:/67531/metapth46578/m1/5/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting Boyce Ditto Public Library.