Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029304 |
Consistency and Discrepancy of Global Surface Soil Moisture Changes From Multiple Model-Based Data Sets Against Satellite Observations | |
Gu, Xihui1,2; Li, Jianfeng2; Chen, Yongqin David3,4; Kong, Dongdong5; Liu, Jianyu6 | |
2019-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:3页码:1474-1495 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | A large population of global soil moisture data sets generated by a variety of models is compared with the latest satellite-based Essential Climate Variable (ECV) soil moisture product in a common framework. The model-based surface soil moisture data sets include Global Land Data Assimilation System (GLDAS), reanalysis products, Coupled Model Intercomparison Project Phase 5 Global Climate Models (GCMs), and Inter-Sectoral Impact Model Intercomparison Project (including observation-driven outputs ISI-MIP_OBS and GCM-driven outputs ISI-MIP_GCM). We evaluate the model-based surface soil moisture against ECV with focuses on spatial patterns, temporal correlations, long-term trends, and relationships with precipitation and Normalized Difference Vegetation Index. The results indicate that all data sets reach a good agreement on the spatial patterns of surface soil moisture, which are also consistent with that of precipitation. However, data sets produced by different techniques have considerable discrepancies in the absolute values of surface soil moisture. Specifically, GCMs tend to underestimate the absolute values of surface soil moisture relative to ECV. In comparisons that remove the influence of absolute values (e.g., unbiased root-mean-square error), all model-based data sets show comparable performances against ECV. GLDAS, reanalysis, and ISI-MIP_OBS data sets show significant positive temporal correlations with ECV. Model-based data sets and ECV consistently indicate widespread drying trends during 1980-2005, but the regional trends vary in different data sets. Compared to ECV, GLDAS and reanalysis data sets exhibit more intensive drying trends, while Coupled Model Intercomparison Project Phase 5 and ISI-MIP_GCM tend to underestimate the drying. In most of the regions, the wetting/drying trends are consistent with the increases/decreases in precipitation and Normalized Difference Vegetation Index. |
英文关键词 | surface soil moisture spatiotemporal changes Global Climate Models hydrological models reanalysis data sets remote sensing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000459377000019 |
WOS关键词 | IN-SITU OBSERVATIONS ; WATER AVAILABILITY ; 4 DECADES ; CLIMATE ; TRENDS ; ASSIMILATION ; SIMULATIONS ; CHINA ; PRECIPITATION ; VALIDATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32431 |
专题 | 气候变化 |
作者单位 | 1.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Hubei, Peoples R China; 2.Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China; 3.Chinese Univ Hong Kong, Sch Humanities & Social Sci, Shenzhen, Peoples R China; 4.Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong, Peoples R China; 5.Sun Yat Sen Univ, Dept Water Resources & Environm, Guangzhou, Guangdong, Peoples R China; 6.China Univ Geosci, Sch Earth Sci, Lab Crit Zone Evolut, Wuhan, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Gu, Xihui,Li, Jianfeng,Chen, Yongqin David,et al. Consistency and Discrepancy of Global Surface Soil Moisture Changes From Multiple Model-Based Data Sets Against Satellite Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(3):1474-1495. |
APA | Gu, Xihui,Li, Jianfeng,Chen, Yongqin David,Kong, Dongdong,&Liu, Jianyu.(2019).Consistency and Discrepancy of Global Surface Soil Moisture Changes From Multiple Model-Based Data Sets Against Satellite Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(3),1474-1495. |
MLA | Gu, Xihui,et al."Consistency and Discrepancy of Global Surface Soil Moisture Changes From Multiple Model-Based Data Sets Against Satellite Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.3(2019):1474-1495. |
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