Water brought to the earth's surface from great depths by the upward movement of intrusive igneous rocks. The quantities of neither magmatic water nor connate water are appreciable in comparison to ...
In oceanography, the prediction of flow evolution via numerical construction of approximate solutions to the governing equations. Solutions are obtained by assigning discrete values to temporal and ...
Conceptualization of the processes associated with the production and loss of sulfur gases in the atmosphere. The cycle consists of 1) the emission of reduced sulfur gases (such as dimethyl sulfide, ...
An instrument for measuring differences of pressure. The weight of a column of liquid enclosed in a tube is balanced by the pressures applied at its opposite ends, and the pressure difference is ...
A frequent condition in which the tropopause appears not as a continuous single “surface” of discontinuity between the troposphere and stratosphere but as a series of quasi-horizontal “leaves” that ...
Colorless, inflammable gas of formula CH 4 ; the simplest hydrocarbon. Methane enters the atmosphere as a result of the anaerobic decay of organic matter in, for example, swamps and rice paddies, and ...
29 用語