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請問下nilai albedo是甚麼?
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我不懂該歸類哪一個,所以在這裡問,不要介意,謝謝
nilai albedo是甚麼來的? |
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发表于 11-7-2006 10:40 AM
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请容许我用英语回答你的问题:-
Albedo is the measurment of fraction of radiation reflect back by the earth surface (unitless). Radiation (EM energy) reach the earth surface as shortwave and reflected back by the earth surface in form of longwave (usually refered to as out going long wave radiation or OLR).Different surfaces have different albedo value, e.g ocean has a smaller albedo compare to icesheet.
hope this clearify your doubt. |
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楼主 |
发表于 12-7-2006 05:43 PM
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发表于 12-7-2006 10:18 PM
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是 EM 波! electromagnetic wave. 是辐射能量! 进入大气的是短波, 反射是长波! |
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