| 单词 | upslope fog |
| 释义 | > as lemmasupslope fog Caused by, occurring, or acting upon an upward slope; esp. as upslope fog (see quot. 1956). ΘΚΠ the world > the earth > weather and the atmosphere > weather > cloud > mist > [noun] > thick mist or fog > other types of fog petty-fog1641 radiation fog1857 tule fog1900 upslope fog1941 the world > the earth > land > landscape > high land > rising ground or eminence > [adjective] > relating to rising ground upslope1970 1941 Jrnl. Royal Aeronaut. Soc. 45 82 The non-adiabatic cooling may be due to two causes, viz., the radiative cooling of the underlying surface, and the advective cooling that results when warm air streams over a colder surface. We may therefore speak of radiation fogs, advection fogs and upslope fogs. 1956 J. C. Swayne Conc. Gloss. Geogr. Terms 146 Upslope fog, fog formed when moist air blows over hilly ground and is cooled adiabatically until its dew point is reached and condensation takes place. 1970 R. J. Small Study of Landforms vi. 215 Upslope factors are considered to be of virtually no importance in Penck's theory. 1973 Nature 9 Feb. 394/1 If the grain size were halved instead of doubled the up~slope fluid drag on each grain would be reduced to a quarter. < as lemmas |
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