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发表于 2020-3-15 15:34:05
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zwyi 发表于 2020-3-15 10:32+ `2 E8 G0 c- d$ }5 A% r, ?
CLOUD COVER, if heavy can blockmost UV radiation. Thin or brokenclouds allow most UV rays through. ... . H' M( W# W, k A6 \
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.- N+ N% r" N/ I$ Q
" a6 Q$ h5 Z6 N! @& a: Z8 @# 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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谢谢,学习了!
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