Multi-scale accuracy assessment of meteorological satellite precipitation products in the dry-hot valley of Jinsha River
文献类型：期刊论文
| 作者 | Feng, Junxin1,2; Chen, Guokun1,3; Duan, Xingwu5,6,7; Tang, Bohui1,3,4; Liu, Zicheng1,3; Huang, Yan1,3; Deng, Yuzhuang1,3 |
| 刊名 | JOURNAL OF HYDROLOGY-REGIONAL STUDIES
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 60页码:102535 |
| 关键词 | Satellite precipitation Reanalysis of precipitation Accuracy evaluation Vertical zonation Dry-hot valley of Jinsha River |
| DOI | 10.1016/j.ejrh.2025.102535 |
| 产权排序 | 4 |
| 文献子类 | Article |
| 英文摘要 | Study region: The dry-hot valley of Jinsha River. Study focus: This study focuses on the dry-hot valley of Jinsha River, using the daily precipitation observation data of two decades as a reference. To evaluate the spatial and temporal performance of five satellite and reanalysis precipitation products (IMERG, TRMM 3B42, PERSIANN-CDR, CHIRPS, and ERA5), seven statistical and three classification indicators were used. Voronoi partitioning and K-Means clustering were employed to enhance the analysis. New hydrological insights for the region: The findings reveal: (1) On an annual scale, IMERG showed the best long-term performance, while caution was needed when using PERSIANN-CDR and ERA5. (2) The dry season was the most reliable period for precipitation estimates, with low false alarm rates and high hit rates. However, heavy rainfall events tended to be overestimated. (3) Monthly accuracy was more stable from November to April, while it decreased and became more variable from May to October. IMERG successfully captured the spatial and temporal distribution of monthly precipitation, while ERA5 showed strong fluctuations and significant overestimation. Additionally, precipitation products performed better in the 1200-1600 m elevation range, with IMERG and TRMM 3B42 excelling across all elevations, while PERSIANN-CDR and ERA5 performed poorly. (4) The IMERG product demonstrated strong agreement with observed daily precipitation during the rainy season, whereas ERA5 and CHIRPS exhibited significant overestimation. Overall, IMERG demonstrated excellent adaptability, providing valuable soil erosion precipitation data for the dry-hot valley. |
| URL标识 | 查看原文 |
| WOS关键词 | SOIL-EROSION ; GLOBAL PRECIPITATION ; TMPA ; RESOLUTION ; PERSIANN ; CLIMATE ; REGION ; BASIN ; IMERG ; TRMM |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001513671900003 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/214515]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Chen, Guokun |
| 作者单位 | 1.Kunming Univ Sci & Technol, Fac Land & Resources Engn, Kunming 650093, Peoples R China; 2.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China; 3.Yunnan Int Joint Lab Integrated Sky Ground Intelli, Kunming 650093, Peoples R China; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 5.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650091, Peoples R China; 6.Yunnan Univ, Yunnan Key Lab Soil Eros Prevent & Green Dev, Kunming 650091, Peoples R China; 7.Yunnan Univ, Yuanjiang Dry Hot Valley Water & Soil Conservat Ob, Kunming 650091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Junxin,Chen, Guokun,Duan, Xingwu,et al. Multi-scale accuracy assessment of meteorological satellite precipitation products in the dry-hot valley of Jinsha River[J]. JOURNAL OF HYDROLOGY-REGIONAL STUDIES,2025,60:102535. |
| APA | Feng, Junxin.,Chen, Guokun.,Duan, Xingwu.,Tang, Bohui.,Liu, Zicheng.,...&Deng, Yuzhuang.(2025).Multi-scale accuracy assessment of meteorological satellite precipitation products in the dry-hot valley of Jinsha River.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,60,102535. |
| MLA | Feng, Junxin,et al."Multi-scale accuracy assessment of meteorological satellite precipitation products in the dry-hot valley of Jinsha River".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 60(2025):102535. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。