2
Hydrometeorology
Chapter Outline
2.1 DEFINITION
The word atmosphere is derived from two Greek words, atmos and spheria. Atmos means vapour and spheria means sphere or spherical earth as its extended meaning. Atmosphere, therefore, means the gaseous envelope surrounding the earth.
Hydrometeorology is the study of that atmospheric process, which affects the hydrologic characters of a region.
2.1.1 Atmosphere and Its Constituents
The permanent constituents of air, in gaseous form, are: (1) nitrogen—78%, (2) oxygen—21% and (3) inert gases 1%. The variable constituents may be in the solid, liquid or gaseous form.
Water is one of these variable constituents, ...
Get Elementary Engineering Hydrology now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.