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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |  |
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First Edition Preface Second Edition Preface Acknowledgments
Section S S index 1031-1039 of 1376 terms
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storage termThe local (Eulerian) rate of change of a quantity with time, ∂/∂t, also known as a tendency term. It indicates the increase or decrease in a quantity.
storativitySame as storage coefficient.
storm chaserOne who intercepts, by car, van, or truck, severe convective storms for sport or for scientific research. Storm chasing is particularly popular in the Plains of the United States.
storm durationPeriod of time between the onset and end of precipitation.
storm lossSee rainfall loss.
storm modelA physical, three-dimensional representation of the inflow, outflow, and vertical motion of air and water vapor in a storm. It is used in hydrometeorology as the basis for computing the effective precipitable water from the surface dewpoint by application of the equation of continuity.
storm-relative environmental helicity(Abbreviated SREH.) A measure of the streamwise vorticity within the inflow environment of a convective storm. It is calculated by multiplying the storm-relative inflow velocity vector by the streamwise vorticity and integrating this quantity over the inflow depth. Geometrically, the storm-relative environmental helicity is represented by the area on a hodograph swept out by the storm-relative wind vectors between specified levels (typically the surface and 3 km to represent the primary storm inflow). It is thought to be a measure of the tendency of a supercell to rotate.
storm surge(Also called storm tide, storm wave, hurricane tide.) A rise and onshore surge of seawater as the result primarily of the winds of a storm, and secondarily of the surface pressure drop near the storm center. The magnitude of the surge depends on the size, intensity, and movement of the storm; the shape of the coastline; nearshore underwater topography; and the state of the astronomical tides. The storm surge is responsible for most loss of life in tropical cyclones worldwide.
storm tide1. Same as storm surge. 2. The height of a storm surge (or hurricane wave) above the astronomically predicted level of the sea.
storm track1. A region in which the synoptic eddy activity is statistically and locally most prevalent and intense. It also roughly corresponds to the mean trajectory of the cyclones in winter. In winter, there are two storm tracks in the Northern Hemisphere centered at about 45°N, one over the Pacific Ocean and the other over the Atlantic Ocean. There is one storm track in the Southern Hemisphere over the South Indian Ocean region at about 50°S prevalent throughout most of the year. 2. The path followed by a meteorological phenomenon, for example, a center of low atmospheric pressure, a severe thunderstorm, a tornado.
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