Consistency problem with tracer advection in the atmospheric model gamil
文献类型：期刊论文
| 作者 | Zhang Kai1,3; Wan Hui1,3; Wang Bin1; Zhang Meigen2 |
| 刊名 | Advances in atmospheric sciences
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 25期号:2页码:306-318 |
| ISSN号 | 0256-1530 |
| 关键词 | Numerical climate modelling Tracer transport Advection scheme Consistency |
| DOI | 10.1007/s00376-008-0306-z |
| 通讯作者 | Zhang kai(zhangkai@mail.iap.ac.cn) |
| 英文摘要 | The radon transport test, which is a widely used test case for atmospheric transport models, is carried out to evaluate the tracer advection schemes in the grid-point atmospheric model of iap-lasg (gamil). two of the three available schemes in the model are found to be associated with significant biases in the polar regions and in the upper part of the atmosphere, which implies potentially large errors in the simulation of ozone-like tracers. theoretical analyses show that inconsistency exists between the advection schemes and the discrete continuity equation in the dynamical core of gamil and consequently leads to spurious sources and sinks in the tracer transport equation. the impact of this type of inconsistency is demonstrated by idealized tests and identified as the cause of the aforementioned biases. other potential effects of this inconsistency are also discussed. results of this study provide some hints for choosing suitable advection schemes in the gamil model. at least for the polar-region-concentrated atmospheric components and the closely correlated chemical species, the flux-form semi-lagrangian advection scheme produces more reasonable simulations of the large-scale transport processes without significantly increasing the computational expense. |
| WOS关键词 | GENERAL-CIRCULATION MODEL ; TRANSPORT ALGORITHM ; SCHEMES ; RN-222 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | SCIENCE CHINA PRESS |
| WOS记录号 | WOS:000254023500012 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2387695 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang Kai |
| 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.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Kai,Wan Hui,Wang Bin,et al. Consistency problem with tracer advection in the atmospheric model gamil[J]. Advances in atmospheric sciences,2008,25(2):306-318. |
| APA | Zhang Kai,Wan Hui,Wang Bin,&Zhang Meigen.(2008).Consistency problem with tracer advection in the atmospheric model gamil.Advances in atmospheric sciences,25(2),306-318. |
| MLA | Zhang Kai,et al."Consistency problem with tracer advection in the atmospheric model gamil".Advances in atmospheric sciences 25.2(2008):306-318. |
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来源：中国科学院大学
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