Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics
文献类型：期刊论文
| 作者 | Chao JiPing2,3; Li YaoKun1,4 |
| 刊名 | Science china-earth sciences
 |
| 出版日期 | 2010-11-01 |
| 卷号 | 53期号:11页码:1726-1733 |
| 关键词 | Two-dimensional energy balance model Desertification Two equilibria |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-010-4032-x |
| 通讯作者 | Li yaokun(lyknq@lasg.iap.ac.cn) |
| 英文摘要 | The relationship between desert evolution and change in albedo has been investigated quasi-analytically using a zonal mean two-dimensional energy balance model which considers the radiation transmission process due to thermodynamics and boundary layer movement caused by kinetics. a climate state including temperature, zonal wind, meridional wind and vertical wind can be simulated according to the current zonal distribution of albedo. given desert distribution, characterized by the value and distribution of albedo, the response of climate on albedo has been studied to analyze the evolution of desert climate. one significant result is that the simple model can reproduce mean meridional circulation. another result indicates that climate corresponds to two equilibria. this happens when the junction temperature between vegetation and desert is higher than a certain critical value. as for the first equilibrium, the desert belt is predicted to move southward in the northern hemisphere with the increasing values of albedo, which corresponds to the current trend of climate change. for the second equilibrium, vegetation will expand northward with increasing values of albedo, which would indicate a narrowing of the desert belt. in order to determine if the two equilibria exist, new physical models are needed. |
| WOS关键词 | CLIMATE |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000298361500013 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2405444 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li YaoKun |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China 2.Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chao JiPing,Li YaoKun. Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics[J]. Science china-earth sciences,2010,53(11):1726-1733. |
| APA | Chao JiPing,&Li YaoKun.(2010).Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics.Science china-earth sciences,53(11),1726-1733. |
| MLA | Chao JiPing,et al."Evolution of desertification in a two-dimensional energy balance model coupled with thermodynamics and dynamics".Science china-earth sciences 53.11(2010):1726-1733. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
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。