土壤质地数据集对 FGOALS-g3 全球长期模拟的影响

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Kun Xia, Ye Pu, Lijuan Li, Bin Wang
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引用次数: 0

摘要

土壤物理性质对陆地与大气相互作用之间的能量和水分平衡至关重要。准确的土壤数据输入可以改进陆地表面模式和数值天气模式的模拟。然而,要了解土壤数据变化对全球气候系统模式长期模拟的影响,还需要进一步努力。灵活的全球海洋-大气-陆地系统模式:采用大气模式相互比较项目(AMIP)中的网格点版本 3(FGOALS-g3)--两种不同土壤质地数据集的风格配置,研究了土壤质地在水文和相关大气变量长期模拟中的作用。结果表明,两个数据集之间的砂和粘土含量在全球平均值上差别很小,但表现出区域异质性。更新土壤质地数据大大减少了全球年平均地表土壤湿度的偏差,在沙质土壤含量变化最显著的地区有明显改善。然而,由于影响因子的复杂性,全球年均尺度上的径流、降水和温度几乎没有改善。如果有更准确的土壤质地数据,对长期土壤湿度的模拟将得到加强。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of soil texture datasets on FGOALS-g3 global long-term simulations

Soil physical properties are critical to the energy and water balance between land and atmosphere interactions. Accurate soil data inputs could improve the simulations in land surface models and numerical weather models. However, further efforts are required to access the impact of soil data changes on global long-term simulations for climate system models. The Flexible Global Ocean-Atmosphere-Land System Model: Grid-Point Version 3 (FGOALS-g3) in an Atmospheric Model Intercomparison Project (AMIP) - style configuration with two different soil texture datasets is employed to investigate the role of soil texture in the long-term simulations of hydrological and related atmospheric variables. The results show that the difference in sand and clay content between the two datasets is slight in the global mean but exhibits regional heterogeneity. Updating soil texture data considerably reduced the deviation of global annual mean surface soil moisture, with significant improvements occurring in regions with the most remarkable changes in sandy soil content. However, there is almost no improvement in runoff, precipitation, and temperature on the global annual mean scale due to the complexity of the impact factor. Simulations of long-term soil moisture would be enhanced with more accurate data on soil texture.

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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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