IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Alternative TitleData Assimilation Algorithm Apply to Energy-Water Balance Analysis of the High Cold Ecosystem at Qinghai-Tibet Plain, Northwest China
周剑1,3; 王根绪1,2; 李新1; 杨永民3; 潘小多1
Corresponding Author周剑
Source Publication地球科学进展


Other Abstract

The frozen soil region of many years located in the Qinghai-Tibet Plain hinterland, Changing of the Water content of soil during freeze-thaw process, intensely responds to climate change and brings remarkable change on land energy-water balance, then has the large feedback function to the global climate. In order to reveal this kind of change, we used the observation data from the wind volcano testing field system, selected water - heat coupling model SHAW as dynamics restraint frame, which consider the influence of snow cover & the vegetation cover & the forest flooring to the soil freezing and thawing, and improved SHAW forecast capacity to the soil moisture content and the frozen soil depth by Ensemble Kalman Filter of data simulation method. The analysis based on data assimilation theory indicate that the data assimilation method may remarkably enhance the forecasting ability of water-heat coupling model to state variables, and provide theory basis for monitor utilizing multiple source information in frozen soil area.

Keyword冻土 土壤水分 陆面数据同化 陆面过程模型——shaw 集合卡尔曼滤波
Subject AreaP642.14
Indexed ByCSCD ; 北大中文核心
Funding Organization国家重点基础研究发展计划项目“我国冰冻圈动态过程及其对气候、水文和生态的影响机理与适应对策”(编号:2007CB411504) ; 国家自然科学基金重点项目“典型山地水文生态系统水循环多尺度耦合的对比试验研究”(编号:40730634)
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Recommended Citation
GB/T 7714
周剑,王根绪,李新,等. 数据同化算法在青藏高原高寒生态系统能量—水分平衡分析中的应用[J]. 地球科学进展,2008,23(9):965-973.
APA 周剑,王根绪,李新,杨永民,&潘小多.(2008).数据同化算法在青藏高原高寒生态系统能量—水分平衡分析中的应用.地球科学进展,23(9),965-973.
MLA 周剑,et al."数据同化算法在青藏高原高寒生态系统能量—水分平衡分析中的应用".地球科学进展 23.9(2008):965-973.
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