| 单词 | southern oscillation |
| 释义 | > as lemmasSouthern Oscillation Southern Oscillation n. Climatology an approximately cyclic variation in the position and intensity of pressure systems in the southern hemisphere, correlated with El Niño; see also El Niño–Southern Oscillation at El Niño n. b.The occurrence of El Niño is accompanied by prevailing low pressure over the warmer waters of the central and eastern Pacific and high pressure over the colder western Pacific. ΘΚΠ the world > the earth > weather and the atmosphere > movements and pressure conditions > [noun] > atmospheric pressure > cyclone or anticyclone > cyclical variation in southern hemisphere Southern Oscillation1923 1923 G. T. Walker in Mem. Indian Meteorol. Dept. 24 323 By the southern oscillation is implied the tendency of pressure at stations in the Pacific..and of rainfall in India and Java..to increase, while pressure in the region of the Indian Ocean..decreases. 1976 Nature 13 May 94/1 The Southern Oscillation is not..some local or even hemispheric phenomenon, but rather a..manifestation of the general tendency of the atmosphere/ocean system to vary on this kind of timescale. 1990 J. Gribbin Hothouse Earth vii. 162 When the temperature pattern over the oceans reverses, the winds also reverse, a phenomenon known to meteorologists as the Southern Oscillation. 2007 Earth & Planetary Sci. Lett. 253 68/1 The Southern Oscillation is the change in the atmospheric pressure gradient over the Pacific, defined as the difference in air pressure between Darwin, Australia and Tahiti. < as lemmas |
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