| 释义 |
isallobar Meteorol.|aɪsˈæləʊbɑː(r)|
[f. Gr. ἴσ-ος equal (iso-) + ἄλλο-ς other (allo-) + βάρ-ος weight, after isobar.]
A line (imaginary or on a map) connecting points at which the barometric pressure has changed by an equal amount during a specified time. Hence isalloˈbaric a.
1911N. Shaw Forecasting Weather xv. 337 Dr. Nils Ekholm, of Stockholm,..uses charts of isallobars. Ibid., Similar groups of isallobars appear on both maps, so that the isallobaric groups may be regarded as travelling as well as the isobaric groups. 1934D. Brunt Physical & Dynamical Meteorol. ix. 189 Brunt and Douglas found that the isallobaric component of wind frequently amounted to as much as 5 metres/sec. 1959S. L. Hess Introd. Theoret. Meteorol. xiv. 226 This solution is for the case of isobars and isallobars (lines of constant pressure tendency) which are oriented east-west. 1962Course Elem. Meteorol. (Meteorol. Office) ii. 25 By analogy with isobars we have isallobaric highs and lows, showing centres of rising and falling pressure respectively. |