Copyright:
Michael Kunze
原文:
Can a cloud love a mountain? Perhaps not, but on a Valentine’s Day like today, one might be prone to seeing heart-shaped symbols where they don’t actually exist. A fleeting pareidolia, the featured heart was really a lenticular cloud that appeared one morning last July above Mount Cook National Park in New Zealand. A companion video shows the lenticular cloud was mostly stationary in the sky but shifted and vibrated with surrounding winds. The cloud’s red color was caused by the Sun rising off the frame to the right. Lenticular clouds are somewhat rare but can form in air that passes over a mountain. Then, vertical eddies may form where rising air cools past the dew point causing water carried by the air to condense into droplets. Unfortunately, this amazing sight made the fascinated videographer late for breakfast. Follow APOD on: Facebook, Google Plus, or Twitter
中文翻譯:
能否讓一朵雲愛上一座山？或許不太可能，但在這樣的情人節，讓人容易在意料之外看見心形的象徵。這朵雲的靜謐片刻，實則是一朵出現在去年七月紐西蘭庫克山國家公園上方的潛雲（Lenticular Cloud）。伴隨的視頻顯示，這朵潛雲在天空中幾乎靜止，但隨著周圍風的變化而微微晃動。它的紅色則是因為太陽從右邊的畫面外升起所造成的。
潛雲雖然有些罕見，但當空氣經過山脈時便會形成。隨著上升的空氣冷卻至露點，垂直的渦流可能會在這裡產生，使空氣中攜帶的水分凝結成小水滴。不幸的是，這一壯觀的景象讓著迷的攝影者遲到了早餐時間。
**Hashtags:**
#情人節 #潛雲 #庫克山國家公園 #自然奇觀 #雲與山 #天文奇觀 #愛在雲端 #新西蘭探險
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來源:NASA每日圖片
