| 陆面数据同化系统的研究综述 |
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| 引用本文： | 黄春林,李新.陆面数据同化系统的研究综述[J].遥感技术与应用,2004,19(5):424-430. |
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| 作者姓名： | 黄春林 李新 |
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| 作者单位： | (中国科学院寒区旱区环境与工程研究所,甘肃兰州 730000) |
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| 基金项目： | 国家自然科学基金项目"中国西部地区陆面数据同化系统"(90202014),中国科学院寒区旱区环境与工程研究所创新课题"黑河流域交叉集成研究的模型开发和模拟环境建设环境建设"(CACX2003102)资助。 |
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| 摘 要： | 大气、海洋数据同化系统的完善和发展,促进了陆面数据同化系统的研究。本世纪初,随着北美(全球)陆面数据同化系统的建立,利用卫星、雷达数据同化地表土壤水分、地表温度、能量通量等工作正逐步展开。与此同时,陆面数据同化的研究也已经成为当前陆面过程和水文过程研究的热点。以北美(全球)陆面数据同化系统、欧洲陆面数据同化系统、中国西部陆面数据同化系统为例,对当前陆面数据同化系统的基本框架作了详细介绍;并指出了当前陆面数据同化系统发展中有待解决的若干问题。
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| 关 键 词： | 数据同化 陆面模型 Kalman滤波 模拟退火 |
| 文章编号： | 1004-0323(2004)05-0424-07 |
| 收稿时间： | 2004-05-07 |
| 修稿时间： | 2004年5月7日 |
A Review of Land Data Assimilation System |
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| HUANG Chun-lin,LI Xin.A Review of Land Data Assimilation System[J].Remote Sensing Technology and Application,2004,19(5):424-430. |
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| Authors: | HUANG Chun-lin LI Xin |
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| Affiliation: | (Cold and Aird Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou730000,China) |
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| Abstract: | The improvement and development of atmospheric and oceanic data assimilation system promotes the study of land data assimilation system (LDAS). In the beginning of 21st century, with the formation of the North American Land Data Assimilation System(NLDAS) and the Global Land Data Assimilation System(GLDAS), the study that utilizes satellite and radar data to assimilate soil moisture, surface temperature and energy flux has being carried on. At the same time, the land data assimilation has been the hotspot of the study in land surface process and hydrology process. In this paper, the main framework of land data assimilation system is summarized in detail. The North American Land Data Assimilation System (NLDAS) and Global Land Data Assimilation System (GLDAS), European Land Data Assimilation System (ELDAS) and West China Land Data Assimilation System (WCLDAS) are introduced. At last, some problems that need to be resolved in the study of land data assimilation system are pointed out. |
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| Keywords: | Data Assimilation Land Surface Model Kalman Filter Simulated Annealing |
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