A very fast simulated re-annealing (VFSA) approach for land data assimilation
文献类型：期刊论文
| 作者 | Li, X; Koike, T; Pathmathevan, M |
| 刊名 | COMPUTERS & GEOSCIENCES
 |
| 出版日期 | 2004-04-01 |
| 卷号 | 30期号:3页码:239-248 |
| 关键词 | simulated annealing data assimilation land surface model microwave remote sensing soil moisture |
| ISSN号 | 0098-3004 |
| DOI | 10.1016/j.cageo.2003.11.002 |
| 通讯作者 | Li, X(lixin@ns.lzb.ac.cn) |
| 英文摘要 | We develop a new data assimilation algorithm by employing a heuristic optimization approach named very fast simulated re-annealing (VFSA), which is capable of minimizing the cost function without using the adjoint model. The method is independent on model operator and observation operator, and has advantages in dealing with strong nonlinearities and discontinuities. Based on the VFSA algorithm, we design a land data assimilation scheme which can assimilate both the in situ measurement of soil moisture, and the passive microwave remote sensing observations into a land surface model. The scheme is tested with GAME-Tibet observations and TMI brightness temperature. Results show that it works successfully with strongly nonlinear land surface model, SiB2 and the radiative transfer model of moist soil. The cost value calculated from optimized initial state is much smaller and the bias from observations are also significantly reduced. (C) 2004 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SURFACE PARAMETERIZATION SIB2 ; SOIL-MOISTURE ; ATMOSPHERIC GCMS ; TEMPERATURE ; ALGORITHMS ; MODELS |
| WOS研究方向 | Computer Science ; Geology |
| WOS类目 | Computer Science, Interdisciplinary Applications ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000221028000005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555605 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, X |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Tokyo, Dept Civil Engn, Tokyo 113, Japan |
| 推荐引用方式 GB/T 7714 | Li, X,Koike, T,Pathmathevan, M. A very fast simulated re-annealing (VFSA) approach for land data assimilation[J]. COMPUTERS & GEOSCIENCES,2004,30(3):239-248. |
| APA | Li, X,Koike, T,&Pathmathevan, M.(2004).A very fast simulated re-annealing (VFSA) approach for land data assimilation.COMPUTERS & GEOSCIENCES,30(3),239-248. |
| MLA | Li, X,et al."A very fast simulated re-annealing (VFSA) approach for land data assimilation".COMPUTERS & GEOSCIENCES 30.3(2004):239-248. |
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来源：寒区旱区环境与工程研究所
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