Hydrology
Introduction:
All life on the earth is dependent, one way or another, on water. The study of science of water is therefore, important. Specially, hydrology can be defined as a science that deals with space-time characteristics of the quantity and quality of the water on the earth, encompassing their occurrence, movement, distribution, circulation, storage, exploration, development, and management. These characteristics are determined by the relation of water on earth. The definition of hydrology is not unique. In a general sense, hydrology is a very broad subject including some multitude of disciplines involving agriculture, biology, chemistry, geology, glaciology, meteorology, oceanography, geography, physics, volcano-logy, and many other disciplines. The involvement of hydrology with this science comes about by the reason of the close association of water with the atmosphere and the earth. Hydrology is partitioned into
(1) Surface-water hydrology,
(2) Ground water hydrology.
Surface water hydrology is defined to the relation between the water and the surface of the earth, whereas Ground water hydrology deals with the relation between water and the lithosphere or the subsurface portion of the earth. It deals with surface water hydrology, with importance on the drainage basin as the origin of the surface water.
Hydrology is basically an applied science. To further highlighting the degree of applicability, the subject is sometimes classified as:
(1). Scientific hydrology – the study which is concerned with academic science
(2). Engineering hydrology – a study concern with engineering application.
In a general sense engineering hydrology deals with (i) estimation of water resources, (ii) the study of processes such as precipitation, runoff, evapotranspiration and their interaction, (iii) the study of problems such as floods and droughts and (iv) the study Action Area of integrated watershed management.
Posted by Chok Bahadur Gurung
on 12:46 AM
0 comments:
Post a Comment