| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.5194/acp-14-10177-2014 |
| Spatial distributions and seasonal cycles of aerosol climate effects in India seen in a global climate-aerosol model. | |
| Henriksson SV; Pietikainen J-P; Hyvarinen A-P; Raisanen P; Kupiainen K; Tonttila J; Hooda R; Lihavainen H | |
| 发表日期 | 2014 |
| 出处 | Atmospheric Chemistry and Physics 14 (18): 10177-10192 |
| 出版年 | 2014 |
| 语种 | 英语 |
| 摘要 | Climate-aerosol interactions in India are studied by employing the global climate-aerosol model ECHAM5-HAM and the GAINS inventory for anthropogenic aerosol emissions. Model validation is done for black carbon surface concentrations in Mukteshwar and for features of the monsoon circulation. Seasonal cycles and spatial distributions of radiative forcing and the temperature and rainfall responses are presented for different model setups. While total aerosol radiative forcing is strongest in the summer, anthropogenic forcing is considerably stronger in winter than in summer. Local seasonal temperature anomalies caused by aerosols are mostly negative with some exceptions, e.g., parts of northern India in March-May. Rainfall increases due to the elevated heat pump (EHP) mechanism and decreases due to solar dimming mechanisms (SDMs) and the relative strengths of these effects during different seasons and for different model setups are studied. Aerosol light absorption does increase rainfall in northern India, but effects due to solar dimming and circulation work to cancel the increase. The total aerosol effect on rainfall is negative for northern India in the months of June-August, but during March-May the effect is positive for most model setups. These differences between responses in different seasons might help converge the ongoing debate on the EHPs and SDMs. Due to the complexity of the problem and known or potential sources for error and bias, the results should be interpreted cautiously as they are completely dependent on how realistic the model is. Aerosol-rainfall correlations and anticorrelations are shown not to be a reliable sole argument for deducing causality. |
| 主题 | Mitigation of Air Pollution (MAG) ; Air Quality & ; Greenhouse Gases (AIR) |
| URL | http://pure.iiasa.ac.at/id/eprint/10830/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/129871 |
| 推荐引用方式 GB/T 7714 | Henriksson SV,Pietikainen J-P,Hyvarinen A-P,et al. Spatial distributions and seasonal cycles of aerosol climate effects in India seen in a global climate-aerosol model.. 2014. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| acp-14-10177-2014.pd（931KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
