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发表于 2020-3-15 15:34:05
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zwyi 发表于 2020-3-15 10:321 j' g3 e |' X# _2 F/ D5 J
CLOUD COVER, if heavy can blockmost UV radiation. Thin or brokenclouds allow most UV rays through. ... 4 S7 V$ A$ v' C1 E& A
CLOUD COVER, if heavy can blockmost UV radiation. Thin or brokenclouds allow most UV rays through. Puffy, fair weather clouds deflectrays and can increase UV radiationreaching the surface.) ]- v7 e1 x9 H, g5 |
: a$ T$ O! V! ?6 k5 N( s厚云遮挡大部分紫外线;薄云则大部分紫外线都能穿透过去。而晴天里蓬松的云会折射紫外线,增加到达地面的辐射量。
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9 w' b. V p( w8 Y6 t2 e谢谢,学习了!5 T4 w9 v: W' \ m4 B3 l
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