ExclusiveMendelssohn: Violin Sonata, Op.4 - III. Allegro agitato 門德爾松：小提琴奏鳴曲，作品4 - 第三樂章 急促的快板
【Classical music and nature 古典音樂小站】Felix Mendelssohn: Violin Sonata, Op.4 - III. Allegro agitato. This beautiful piece was preserved by European Archive. It has Creative Commons license (PDM 1.0 DEED, Public Domain Mark 1.0 Universal) and is provided through www.musopen.org.
"In winter, when the air is very cold and dry, it is sometimes possible to see evaporation mist over the surface of a lake. This gives the impression that the lake is "smoking" just above the surface.
Evaporation fog occurs when continental subpolar air or continental arctic air masses move over relatively mild water surfaces. As the cold air can absorb less moisture than the warm air, the continental (dry) aspect is important. It allows a sufficient amount of water vapour to evaporate and condense to form 'smoke'.
In most cases, a temperature difference of at least 10 to 12°C between the water surface and the air mass is required for evaporation fog to form. This unstable profile, fuelled by the transfer of sensible and latent heat from the water to the cold and dry air, gives the "smoke" an often turbulent appearance. Over the North Sea, Baltic Sea or Atlantic Ocean, it can even be accompanied by small heat storms, but not over Swiss lakes.
Evaporation fog usually develops in late autumn or early winter with the arrival of the first really cold air masses, when the water in the lakes is still relatively warm and not yet frozen. It can occur both when there is a strong wind, such as an iron current, and when there is no wind." Source: MeteoSchweiz
Can you see the evaporation mist on the surface of Lake Thun? It was filmed by Simone Schlegel and edited by Wenjing Ma.
【古典音樂小站】費利克斯·門德爾松：小提琴奏鳴曲，作品4 - 第三樂章：急促的快板。這美麗的樂曲由歐洲檔案館保存。它擁有創用CC授權（PDM 1.0 DEED，公眾領域標記1.0通用）並通過www.musopen.org提供。
在冬天，當空氣非常冷且乾燥時，有時可以看到湖面上方的蒸發霧。這讓湖面上方似乎“冒煙”。
蒸發霧發生在大陸次極地區氣團或大陸極地氣團移動至相對溫暖的水面上。由於冷空氣比溫暖的空氣能吸收的水分少，因此大陸（乾燥）的特點很重要。它允許足夠量的水蒸氣蒸發並凝結形成“煙”。
在大多數情況下，水面與氣團之間至少需要10至12°C的溫差，蒸發霧才能形成。這種不穩定的剖面，由於水面向冷乾空氣傳遞顯熱和潛熱，使得“煙”通常呈現出動盪的外觀。在北海、波羅的海或大西洋上，甚至可能伴隨著小型熱風暴，但在瑞士湖泊上則不會。
蒸發霧通常在晚秋或早冬隨著第一股真正冷的氣團到來時發展，當時湖中的水仍然相對溫暖且尚未結冰。無論是在有強風時，如鐵流，還是在無風時都可能發生。來源：MeteoSchweiz
你能看到圖恩湖表面的蒸發霧嗎？這是由Simone Schlegel拍攝，並由馬文璟編輯。
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