释义 |
DictionarySeehorizonfalse horizon
false horizon[¦fȯls hə′riz·ən] (navigation) A line resembling the visible horizon but above or below it. false horizon A case of perception of false horizon when flying between two cloud layers.A visual illusion that occurs when flying between two cloud layers that are not horizontal when there is no natural horizon. In this case, there is a tendency to use a cloud base or the cloud top as the horizon and fly with a corresponding bank. Other conditions conducive to causing this illusion are sloping cloud formations, an obscured horizon, a dark spread with ground lights and stars, and certain geometric patterns of ground lights. |