| 我国和东亚地区硫化物跨边界输送态势研究 |
| |
| 引用本文： | 黄美元,王自发,何东阳,徐华英,周 玲.我国和东亚地区硫化物跨边界输送态势研究[J].气候与环境研究,1996,1(1):55-62. |
| |
| 作者姓名： | 黄美元 王自发 何东阳 徐华英 周 玲 |
| |
| 作者单位： | 中国科学院大气物理研究所 |
| |
| 摘 要： | 本文利用污染物三维欧拉长距离输送实用模式，较详细地模拟了我国和东亚地区硫化物跨地区、跨边界输送态势，分析了东亚地区硫化物输送通量随高度、季节变化的分布特点，讨论了不同地区边界上硫化物的跨边界输送通量及流的收支平衡，并给出了我国和周边国家和地区之间硫化物的相互输送量。结果表明，我国向外输送的硫化物占周边国家和地区总硫沉降的比例并不大，各地区硫沉降的主要来源是自身排放；硫化物长距离输送中硫酸根的输送占重要地位，各地区硫酸根沉降中的外来比例较大。我们初步总结出一个东亚地区硫化物输送的概念模式：在低层，夏季主要自西南向东北输送，冬季长江以北自北向南输送，长江以南由西南向北输送，并在长江中下游地区形成一个较强的硫化物辐合带，在高层，无论冬夏均由西向东输送，并随高空带变化，中层为二者的过渡，春秋季的情形界于冬夏之间，偏向冬季。
|
| 关 键 词： | 输送态势，硫化物，相互输送量，东亚 |
Studies on Cross-Boundary Transport of Sulfur in China and East Asia |
| |
| Huang Meiyuan,Wang Zif,He Dongyang,Xu Huaying and Zhou Ling.Studies on Cross-Boundary Transport of Sulfur in China and East Asia[J].Climatic and Environmental Research,1996,1(1):55-62. |
| |
| Authors: | Huang Meiyuan Wang Zif He Dongyang Xu Huaying and Zhou Ling |
| |
| Abstract: | With our 3-D long-range transport Eulerian applied model for pollutants, we simulated in detail transport features of sulfur across boundaries in China and East Asia and analyzed the distribution characteristics of transport fluxes and its seasonal and spatial variation.On the basis of transport fluxes across boundaries,we discussed the sulfur budgets and obtained transport quantities of sulfur among China and different countries(regions)in East Asia. Simulation shows that in total deposition of sulfur of other countries, the ratio from mainland of China is small, the main origin of sulfur deposition in each country in East Asia is from itself. In the long-range transport process of sulfur, the role of sulfate is important and the ratio from other regions in sulfate deposition is larger. Preliminarily we concluded a concept model of sulfur transport in East Asia. In lower layers sulfur pollutants transport from southwest to northeast in summer while in winter pollutants transport from north to south in North China and from southwest to north in South China, furthermore,a transport convergence zone appears in middle and lower reaches of the Yangtze River.Sulfur pollutions are transported from west to east in higher layers in winter and summer and changed with westerly belt.In middle layer the situation exists between the high and lower layers and in spring and autumn it is between winter and summer and is more similar with winter. |
| |
| Keywords: | transport feature sulfur transport quantity East Asia |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《气候与环境研究》浏览原始摘要信息 |
| 点击此处可从《气候与环境研究》下载免费的PDF全文 |
|
