Comprehensive validation of seven root zone soil moisture products at 1153 ground sites across China
文献类型：期刊论文
| 作者 | Tian, Jing; Zhang, Yongqiang |
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2023-12-08 |
| 卷号 | 16期号:2页码:4008-4022 |
| 关键词 | Root zone soil moisture validation China seven products |
| DOI | 10.1080/17538947.2023.2261902 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Root zone soil moisture (RZSM) is a critical parameter for drought monitoring, agriculture, and vegetation growth. In situ measurements of RZSM are scarce, and therefore, RZSM products are derived mainly through modeling approaches. This study evaluated seven RZSM products, including ERA5, MERRA2, CFSR, SMAP level 4, GLDAS-NOAH2.1, GLDAS-Catchment2.2, and SMOS CATDS Level 4, using 1153 ground sites across China. The evaluations aimed to address which products perform better, how well they capture the seasonal variations, and how they perform under different land surface and climate conditions. Results showed that MERRA2 and NOAH had the best performance, with MERRA2 having a better ability to capture surplus and deficit soil moisture conditions. The study also revealed that precipitation forcing plays a vital role in improving RZSM simulations. Conversely, ERA5 overestimates RZSM, and SMOS exhibits a dry bias. From the time series variability, all datasets except SMOS can capture the temporal dynamics of RZSM well. Moreover, the accuracy of the RZSM products varies significantly in tropical climate zones. This study provides crucial insights for improving land surface and hydrological models in estimating RZSM, which will help in drought management and agriculture production. |
| WOS关键词 | EXPONENTIAL FILTER ; PATTERNS ; DATASET ; SURFACE |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:001075304700001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/198853]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & NaturalResources Res IGSNRR, Key Lab Water Cycle & Related Land Surface Proc, A11 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Jing,Zhang, Yongqiang. Comprehensive validation of seven root zone soil moisture products at 1153 ground sites across China[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2023,16(2):4008-4022. |
| APA | Tian, Jing,&Zhang, Yongqiang.(2023).Comprehensive validation of seven root zone soil moisture products at 1153 ground sites across China.INTERNATIONAL JOURNAL OF DIGITAL EARTH,16(2),4008-4022. |
| MLA | Tian, Jing,et al."Comprehensive validation of seven root zone soil moisture products at 1153 ground sites across China".INTERNATIONAL JOURNAL OF DIGITAL EARTH 16.2(2023):4008-4022. |
入库方式： OAI收割
来源：地理科学与资源研究所
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