Science / Weather / Discontinuity: Comparatively large contrast in meteorological elements over a relatively small distance or period of time. In oceanography, it is the abrupt change or jump of a variable at a line or surface.
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Science / Geology / Mohorovic Discontinuity: The boundary between crust and mantle, marked by a rapid increase in seismic wave velocity to more than 8 kilometers per second. Depth: 5 to 45 kilometers. Abbreviated 'Moho' or 'M-discontinuity.' MORE
Science / Marine Biology / Redox-Potential Discontinuity: That depth below the sediment-water interface marking the transition from chemically oxidative to reducing processes MORE
Science / Geology / Seismic Discontinuity: A surface within the Earth across which P-wave or S-wave velocities change rapidly, usually by more than +~0.2 kilometer/second. MORE
Science / Tides and Currents / Internal Tide: A tidal wave propagating along a sharp density discontinuity, such as a thermocline, or in an area of gradually changing (vertically) density. MORE
Science / Tides and Currents / Progressive Wave: A wave that advances in distance along the sea surface or at some intermediate depth. Although the wave form itself travels significant distances, the water particles that make up the wave merely desc MORE
Science / Geology / Seismic Transition Zone: A seismic discontinuity, found in all parts of the Earth, at which the velocity increases rapidly with depth: especially the one at 300 to 600 kilometers. MORE