Capabilities of microwave-based soil moisture products in capturing extreme hydrological conditions
文献类型：期刊论文
| 作者 | Pan, Yuhong3; Hu, Shi2; Gao, Lun1; Qiu, Jianxiu3; Peng, Zhiqing8; Hu, Lu7; Zhao, Tianjie6; Dong, Jianzhi5; Tan, Chao4 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2026 |
| 卷号 | 664页码:134392 |
| 关键词 | Soil moisture In-situ measurements Retrieval algorithms Long-term errors Extreme events Hydrological cycle |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2025.134392 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | In the context of global warming, monitoring the increased frequency of extreme droughts and floods is important. This can be effectively achieved by using soil moisture (SM), an Essential Climate Variable, acquired either from land surface models (LSMs) or microwave remote sensing. However, LSMs are known to be insensitive in simulating extreme conditions. Therefore, it is crucial to evaluate the capabilities of microwave remote sensing SM products in detecting extreme climatic and hydrological events, especially given their growing use for early warning of hydrometeorological disasters. Previous research has primarily focused on quantifying the longterm averaged errors of these SM products, with limited assessment of their capabilities to capture short-term fluctuations. To address this gap, we utilize extensive ground-based observations and the triple collocation method to assess the capabilities of these products in characterizing extreme events, alongside evaluating their long-term averaged errors. Our analysis encompasses various satellite missions, microwave frequency bands, and retrieval algorithms. Results indicate that (1) retrieval algorithms govern long-term SM accuracy, with the MultiChannel Collaborative Algorithm (MCCA) reducing unbiased root mean square error and bias relative to prior approaches; (2) L-band products excel in capturing short-term extremes (droughts/floods), demonstrating the critical role of microwave frequency for hydrological disaster monitoring. |
| URL标识 | 查看原文 |
| WOS关键词 | TRIPLE COLLOCATION ; SMAP ; SMOS ; RETRIEVAL ; VALIDATION ; NETWORK ; REGIONS ; MODEL ; ASCAT |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001622740500002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/219679]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Qiu, Jianxiu |
| 作者单位 | 1.Univ Minnesota, Inst Environm, St Paul, MN 55108 USA; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; 3.Sun Yat Sen Univ, Sch Geog & Planning, Guangzhou 510275, Peoples R China; 4.Guangdong Res Inst Water Resources & Hydropower, Guangzhou 510630, Peoples R China 5.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 6.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing & Digital Earth, Beijing 100101, Peoples R China; 7.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210023, Peoples R China; 8.Tsinghua Univ, Inst Global Change Studies, Dept Earth Syst Sci, Beijing 100084, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Pan, Yuhong,Hu, Shi,Gao, Lun,et al. Capabilities of microwave-based soil moisture products in capturing extreme hydrological conditions[J]. JOURNAL OF HYDROLOGY,2026,664:134392. |
| APA | Pan, Yuhong.,Hu, Shi.,Gao, Lun.,Qiu, Jianxiu.,Peng, Zhiqing.,...&Tan, Chao.(2026).Capabilities of microwave-based soil moisture products in capturing extreme hydrological conditions.JOURNAL OF HYDROLOGY,664,134392. |
| MLA | Pan, Yuhong,et al."Capabilities of microwave-based soil moisture products in capturing extreme hydrological conditions".JOURNAL OF HYDROLOGY 664(2026):134392. |
入库方式： OAI收割
来源：地理科学与资源研究所
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