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| DOI | 10.3390/atmos15010105 |
| Seasonal Variations in Anthropogenic and Natural Particles Induced by Rising CO2 Levels | |
| Yang, Dongdong; Zhang, Hua; Li, Jiangnan | |
| 发表日期 | 2024 |
| EISSN | 2073-4433 |
| 起始页码 | 15 |
| 结束页码 | 1 |
| 卷号 | 15期号:1 |
| 英文摘要 | Using an aerosol-climate coupled model, this paper has investigated the changes in distributions of anthropogenic and natural particles due to 4 x CO2-induced global warming, under the low emission scenario of Representative Concentration Pathway 4.5 (RCP4.5). Special attention is paid to the seasonal variations of aerosol size modes. With rising CO2 levels, surface warming, and changes in atmospheric circulations and hydrologic cycles are found during both summer (JJA) and winter (DJF). For anthropogenic particles, changes in fine anthropogenic particulate matter (PM2.5, particles with diameters smaller than 2.5 mu m) decrease over high-latitude regions and increase over the tropics in both DJF and JJA. Global mean column concentrations of PM2.5 decrease by approximately 0.19 mg m(-2), and concentrations of coarse anthropogenic particles (CPM, particles with diameters larger than 2.5 mu m) increase by 0.005 mg m(-2) in JJA. Changes in anthropogenic particles in DJF are similar to those in JJA, but the magnitudes of maximum regional changes are much smaller than those in JJA. The coarse anthropogenic particles (CPM, particles with diameters larger than 2.5 mu m) increase over northern Africa and the Arabian Peninsula during JJA, whereas changes in anthropogenic CPM during DJF are minimal. During both JJA and DJF, changes in anthropogenic CPM are about two orders of magnitude smaller than those of anthropogenic PM2.5. Enhanced wet deposition by large-scale precipitation under rising CO2-induced surface warming is the critical factor affecting changes in anthropogenic particles. For natural particles, the distribution of change in the natural PM2.5 burden is similar to that of natural CPM, but much larger than natural CPM during each season. Both natural PM2.5 and CPM burdens increase over northern Africa and the Arabian Peninsula during JJA, but decrease over most of the continental regions during DJF. Changes in surface wind speed, divergence/convergence of surface wind, and precipitation are primary reasons for the variation of natural particles. |
| 英文关键词 | anthropogenic and natural particles; fine and coarse particles; CO2; climate response |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:001151948500001 |
| 来源期刊 | ATMOSPHERE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/303737 |
| 作者单位 | Qufu Normal University; China Meteorological Administration; Chinese Academy of Meteorological Sciences (CAMS); Environment & Climate Change Canada; Canadian Centre for Climate Modelling & Analysis (CCCma); University of Victoria |
| 推荐引用方式 GB/T 7714 | Yang, Dongdong,Zhang, Hua,Li, Jiangnan. Seasonal Variations in Anthropogenic and Natural Particles Induced by Rising CO2 Levels[J],2024,15(1). |
| APA | Yang, Dongdong,Zhang, Hua,&Li, Jiangnan.(2024).Seasonal Variations in Anthropogenic and Natural Particles Induced by Rising CO2 Levels.ATMOSPHERE,15(1). |
| MLA | Yang, Dongdong,et al."Seasonal Variations in Anthropogenic and Natural Particles Induced by Rising CO2 Levels".ATMOSPHERE 15.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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