| 释义 |
> as lemmasEkman spiral Ekman spiral n. [propounded by Ekman in Nyt Magazin for Naturvidenskaberne (1902) B. XL. 1–27] a spiral that ideally represents both the increasing angular difference between the wind direction and a wind-induced ocean current, and the decreasing speed of the current, at increasing depths; a similar spiral ideally representing wind direction and speed between the ground and the height at which its frictional effect on the geostrophic wind disappears.< |