Hydrology is a science concerned with the properties of the Earth's water, especially its movement in relation to land.
Hydrology is the study of the water cycle. Natural and man-made processes guide water in its varied forms to a variety of ends. Use as irrigation, drinking water and process water by man is very common.
Def. "hydrology as used in the processing of radioactive materials" is called radiohydrology.
Def. the "study of the ecological processes associated with hydrology" is called ecohydrology.
Def. "the science that uses dendrochronology to investigate and reconstruct hydrologic processes, such as river flow and past lake levels" is called dendrohydrology.
Def. the "science of the properties, distribution, and effects of water on a planet's surface, in the soil and underlying rocks, and in the atmosphere" is called hydrology.
For a source contaminant concentration entering a flow of velocity at a distance upstream from a point, the downstream concentration at that point is determined by the ratio...
Where... is the local dispersion coefficient determined by
and where friction velocity is
Velocity Distribution in an Open Channel (River)
Velocity distribution within a river follows a standard velocity profile for a confined space (pipe-flow)with the exception that the vertical distribution is truncated at the surface due to reduced friction with atmospheric gases versus the high friction against riverbed materials.
Boundary Layer thickness, also known as the displacement thickness, is defined by:
where is the average velocity and is the velocity distribution in a channel of uniform depth .
So in the case of this river, where the current is always normal to the cross-sectional area of the river (idealized)...
- Physical Properties of the Oceans
- SemperBlotto (7 December 2006). "radiohydrology, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. Retrieved 2015-02-21.
- SemperBlotto (28 February 2009). "ecohydrology, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. Retrieved 2015-02-21.
- SemperBlotto (25 October 2005). "dendrohydrology, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. Retrieved 2015-02-21.
- SemperBlotto (27 February 2005). "hydrology, In: Wiktionary". San Francisco, California: Wikimedia Foundation, Inc. Retrieved 2015-02-21.
Additional helpful readings include:
- MIT OCW - Transport Processes in the Environment course
- MIT OCW - Groundwater Hydrology course
- MIT OCW - Chemicals in the Environment: Fate and Transport course
- MIT OCW - Water Resource Systems course
- MIT OCW - Aquatic Chemistry course
- MIT OCW - Water and Sanitation Infrastructure in Developing Countries course
- MIT OCW - Environmental Microbiology course
Learn more about Hydrology