by Todd Elder at Exploring Creation
Hydrology is the section of science that studies the physical characteristics, mechanics, and dynamics of water and it's effects upon the Earth. Special attention is given to the hydrologic cycle close to the surface of the Earth.
Hydrology includes the study of the physical and chemical characteristics of water and its movement within Earth's hydrosphere. This includes the study of hydraulics, the mechanics and dynamics of liquid water. Due to the abundance of water upon the Earth and its high specific heat value, water has a large impact upon climate and heat storage.
Many fields of hydrology exist. One major category is oceanography which studies the oceans and seas with the actions of waves, currents, tides, and sea ice. There is also limnology which is the study of lakes, both natural and man-made.
Water is the principal constituent of all living things which makes the availability of water a major factor in having an inhabitable environment. About 71 percent of the Earth's surface is covered by sea water.
The actions of water has produced the Earth's current surface features more than any other physical process and gives strong evidence for creationism and a worldwide flood.