特地去大氣系站抓來的(他們沒有系板) 真是佛心來著的我，順便賺發文數吧XD 答案是他們提供的，有錯別怪我 哈哈 1.UV Radiation can be classified into three distinct spectral ranges by wavelength, which is UVA, UVB, and UVC, their range of wavelength is shown below: name range(nm) UVA 320~400 UVB 290~320 UVC 200~290 Some facts: 1.High-frequency UV radiation damages our body more than low-frequency UV radiation. 2.O3 layer in the stratosphere can absorb some UV radiation. Solar flux and O3 absorption coefficient varies with wavelength of EM wave. The relationship can be shown by the following diagram: (圖http://aki-tsuki.myweb.hinet.net/q.jpg) (1) At the top of the atmosphere(ex:500 km above the ground), which kind of UV radiation has the most radiation flux? UVA: (2) UVA is relatively harmless to our body. If O3 layer can almost absorb all the UV radiation in their absorption wavelength range, which kind of the UV radiation affect us the most?(we are on the ground) (UVB or UVC) UVB 2.Write the equation cycle that atomic chlorine decompose ozone molecules. (Elementary step and net reaction) Cl + O3 --> ClO + O2 +) ClO + O --> Cl + O2 -------------------------------------------- O3 + O --> 2O2 3.Arrange the following layers of atmosphere with respect to the latitude from low to high (mesosphere stratosphere thermosphere troposphere), and decribe the temperature change with respect to the altitude, and explain the reason: of stratospheric temperature change. Troposphere->stratosphere->mesosphere->thermosphere decreasing increasing decreasing increasing The absorption of UV radiation from sun by ozone heats the air. --

※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.242.60 ※ 編輯: eatcake135 來自: 140.112.242.60 (05/08 15:47)