| DC 欄位 |
值 |
語言 |
| DC.contributor | 大氣物理研究所 | zh_TW |
| DC.creator | 張詩婉 | zh_TW |
| DC.creator | Shih-Wan Chang | en_US |
| dc.date.accessioned | 2010-6-29T07:39:07Z | |
| dc.date.available | 2010-6-29T07:39:07Z | |
| dc.date.issued | 2010 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=976201020 | |
| dc.contributor.department | 大氣物理研究所 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 二氧化碳為目前最受矚目的溫室效應氣體之一，全球已有許多二氧化碳的地面觀測資料，但是在各大洋海域上的二氧化碳資料卻是非常少的，若能補足太平洋海域二氧化碳資料的不足，將能對全球大氣二氧化碳濃度分布情形有更好的了解。本研究主要在描述二氧化碳商用貨輪觀測平台的發展過程，展示目前太平洋溫室效應氣體船測計畫所蒐集到之二氧化碳濃度觀測資料，並和AQUA-AIRS衛星資料做初步之比較。
太平洋溫室效應氣體船測計畫已成功將9組GFC二氧化碳分析儀分別安裝在9艘長榮海運的國際貨輪上進行太平洋海域大氣二氧化碳觀測，運用此觀測平台可得到跨太平洋海域的二氧化碳濃度資料。從2010/01/22~2010/03/26期間的二氧化碳觀測資料可以發現，二氧化碳濃度在港區及靠近港區的海域約在403ppm以上，在太平洋海域的濃度約為393ppm；和AQUA-AIRS資料進行比較之後顯示，船測資料可以清楚的呈現局部區域近地表的二氧化碳變化情形，但AIRS資料對於局部區域近地表二氧化碳濃度的變化較不敏感。利用HYSPLIT模式作72小時的回推軌跡，顯示在航行期間觀測到之高濃度二氧化碳空氣大多來自於陸地；而低濃度二氧化碳空氣大多來自於乾淨的太平洋海域。
從2009/11~2010/03平均二氧化碳濃度資料可以看出亞洲及美洲各港口的二氧化碳濃度值大約落在405ppm至440ppm之間；而在冬季到初春期間，除了受到局部排放影響之外，受到東北季風的影響使空氣較容易在南部累積，造成高雄港的二氧化碳濃度值都比台北港的二氧化碳濃度值高。
| zh_TW |
| dc.description.abstract | CO2 is one of the most important greenhouse gases, but the atmospheric CO2 concentration data above the ocean is very sparse. If we can collect more CO2 data over the Pacific then we can better understand the distribution of global atmospheric CO2 concentration. The main purpose destination of this paper is to document the development of the ship-based platforms for atmospheric CO2 measurements, and presenting the CO2 data collected by Pacific greenhouse gases measurement (PGGM) ship-based project. In addition, we also compare the ship-based CO2 concentration data with AQUA-AIRS CO2 retrieval data.
The PGGM project has installed 9 GFC CO2 analyzers on 9 EVERGREEN vessels to measure atmospheric CO2 concentration over Pacific Ocean. Using the ship-based platform, we can get more CO2 concentration data across the Pacific. During the time from 22 January 2010 to 26 March 2010, we find that the CO2 concentration values near the ports are over 403ppm,and over the Pacific regions are under 393ppm. Comparing these data with AQUA-AIRS CO2 data, we find that ship-based measurements can reveal significant local changes near the surface area, while AIRS data shows more smooth pattern. Using HYSPLIT model to run 72-hour backward trajectories, show that the air with high CO2 concentration almost came from land, and the air with low CO2 concentration almost came from Pacific Ocean.
The data measured from November 2009 to March 2010 show CO2 concentrations at ranges between 405ppm and 440ppm when the vessels berth in the ports of Asia and North American. In winter and spring, except affected by the local CO2 emission. The northeasterly monsoon also causes air to easily accumulate around
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the south of Taiwan, resulting in the higher concentration in Kaohsiung port than in Taipei port.
| en_US |
| DC.subject | 太平洋溫室效應氣體觀測 | zh_TW |
| DC.subject | 二氧化碳 | zh_TW |
| DC.subject | Pacific Greenhouse Gas Measurements(PGGM) | en_US |
| DC.subject | carbon dioxide(CO2) | en_US |
| DC.title | 全球大氣二氧化碳商用貨輪觀測平台之發展 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Development of ship-based platforms for atmospheric carbon dioxide measurements | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |