Influence of External Parameters on Evapotranspiration in the INM RAS–MSU Land Surface Model

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-26 DOI:10.3103/s1068373924050054
A. I. Medvedev, V. M. Stepanenko, V. Yu. Bogomolov
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Abstract

The paper investigates the sensitivity of evapotranspiration in the INM RAS–MSU land surface model to the changes in the weights of land surface classes in the cells of the latitude-longitude grid and the leaf area index LAI. It is demonstrated that the refinement of the values of the mentioned parameters based on modern observational data significantly reduces an error in evapotranspiration. The annual sum of evapotranspiration averaged over 10 years (2002–2012) from the surface of medium-sized (2−50×103 km2) watersheds of northern European Russia is used for the analysis. The model error has been calculated against the empirical estimates of evapotranspiration obtained from the watershed water balance equation. As an intermediate task, the accuracy of satellite data on terrestrial water storage used in the calculations is assessed by the comparison with the data of snow route surveys.

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外部参数对 INM RAS-MSU 陆面模型蒸散量的影响
摘要 本文研究了 INM RAS-MSU 陆面模型中的蒸散量对经纬度网格单元中陆面等级权重和叶面积指数 LAI 变化的敏感性。结果表明,根据现代观测数据对上述参数值的改进可显著减少蒸散量的误差。分析采用了俄罗斯北欧中等规模(2-50×103 平方公里)流域地表 10 年(2002-2012 年)的年平均蒸散量总和。根据流域水平衡方程得出的蒸散量经验估算值计算了模型误差。作为中间工作,计算中使用的陆地蓄水量卫星数据的准确性通过与雪路勘测数据的比较进行了评估。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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