| 单词 | gradient wind |
| 释义 | > as lemmasgradient wind gradient wind n. Meteorology the (hypothetical) wind whose direction is that of the geostrophic wind but whose speed is calculated by allowing for the effect on the geostrophic wind of the centrifugal force that results from its curved path. ΚΠ 1908 E. Gold Barometric Gradient & Wind Force 24 We can construct a scale..which shall give..the Beaufort number corresponding to the theoretical gradient wind for straight isobars for any pressure distribution. 1928 D. Brunt Meteorol. vii. 66 The value of the gradient wind which is derived when the curvature of the path is neglected is called the geostrophic wind. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VI. 244/2 The gradient wind is a good approximation to the actual wind and is often superior to the geostrophic wind, particularly when the flow is strongly curved in the cyclonic sense. < as lemmas |
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