本研究探討對流層(小於10公里高度)二氧化碳與水蒸氣之吸收係數對溫度之影響。可見光範圍附近與短波長範圍內的太陽輻射可穿過大氣層被地面吸收及反射。地面會發射長波長範圍內的輻射。大氣層存在二氧化碳和水蒸氣如同一層溫室玻璃會使大氣溫度增加。二氧化碳和水蒸氣是導致大氣溫室效應的氣體。雖然全球暖化對人類的生活產生了強烈的影響，全球暖化的原因仍然存在爭議。本研究因此有系統地定量計算了對流層中二氧化碳與水蒸氣之吸收係數。吸收係數為波長、溫度和濃度的函數。二氧化碳的主要吸收波段之中心波長為15μm、4.3μm、2.7μm及2μm，而水蒸氣以71μm、6.3μm、2.7μm、1.87μm、1.38μm為波段之中心波長吸收。本研究理論模型與實驗數據的結果一致。計算結果證明了二氧化碳與水蒸氣對對流層溫度之影響。

Absorption coefficient of carbon dioxide and water vapor responsible for temperature in the troposphere layer, which is less than the altitude of 10 km in the atmosphere, is presented in this study. It has been well known that the solar irradiation can penetrates through the troposphere layer within short wavelength range near the visible range, and it can then be absorbed, scattered by the atmosphere, and absorbed and reflected by the earth ground. The ground emits radiation in the ranges of long wavelengths. In the presence of carbon dioxide and water vapor, the atmosphere acting as the glass of a greenhouse increases temperature of the atmosphere. Greenhouse gas is the gas component that contributes to the greenhouse effect in the atmosphere. Even though global warming strongly affects the life of the human being, the cause of global warming is still controversial. This study thus establishes a fundamental, systematical and quantitative analysis of absorption coefficient of carbon dioxide and water vapor in the troposphere layer. Absorption coefficient is a function of wavelength, temperature and concentration. Absorptions of carbon dioxide are absorbed in bands centered at 15μm, 4.3μm, 2.7μm, and 2μm and water vapor is absorbed in long wavelength bands centered at 71μm, 6.3μm, 2.7μm, 1.87μm and 1.38μm, respectively. The predict absorptions agree with experimental and theoretical results in exponential wide band model. The computed results show the effects of carbon dioxide and water vapor on temperatures in the troposphere.

論文審定書 i
摘要 ii
Abstract iii
圖次 v
表次 vii
符號說明 viii
第一章 緒論 1
1.1前言 1
1.2文獻回顧 3
1.3研究目的 4
第二章 分析模型與方程式 5
2.1系統模型 5
2.2空氣統御方程式 6
2.3四季模型 7
2.4 擴散方程式與吸收係數計算 9
第三章 驗證與模擬結果分析 19
3.1 網格驗證 19
3.2 二氧化碳與水蒸氣之吸收係數驗證 25
3.2.1 波段總吸收量 25
3.2.2 波段平均吸收係數 28
3.3 實際溫度驗證 30
第四章 結論 31
參考文獻 32

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