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| DOI | 10.1007/s12040-023-02235-6 |
| Evaluation of satellite-based rainfall estimates in the upper Blue Nile basin | |
| Gado, Tamer A.; Zamzam, Dina H.; Guo, Yiping; Zeidan, Bakenaz A. | |
| 发表日期 | 2024 |
| ISSN | 2347-4327 |
| EISSN | 0973-774X |
| 起始页码 | 133 |
| 结束页码 | 1 |
| 卷号 | 133期号:1 |
| 英文摘要 | Observed rainfall measurements are scarce in many areas of the Nile Basin, where gauge stations are usually sparse. Thus, it is necessary to find reliable sources, such as satellite precipitation products, which can provide uninterrupted precipitation time series. In this study, four high-resolution satellite rainfall products (TRMM-3B42RT, PERSIANN-CCS, GSMAP-NRT, and CHIRPS-V2) were evaluated against ground-based observations from 44 stations over the Upper Blue Nile Basin (UBNB). The satellite-based rainfall estimates were adjusted by two bias-correction methods: linear scaling (LS) and power transformation (PT). Precipitation estimates from the CHIRPS-V2, PERSIANN-CCS, and TRMM-3B42RT products have reliable agreement with ground measurements in estimating and detecting rainfall events. CHIRPS-V2 reveals its outstanding skill over other products, and GSMAP-NRT is the worst. Both bias-correction methods significantly improve all-product estimates, with LS better than PT. This study demonstrates the importance of evaluating and modifying satellite rainfall products for use in hydrometeorological applications in the UBNB.Research highlightsThe research evaluates four high-resolution satellite rainfall products (TRMM-3B42RT, PERSIANN-CCS, GSMAP-NRT, and CHIRPS-V2) against monthly ground-based observations from 44 stations over the Upper Blue Nile Basin (UBNB).Two bias correction methods (linear scaling and power transformation) were applied to adjust the satellite-based rainfall estimates.Rainfall estimates from CHIRPS-V2, PERSIANN-CCS, and TRMM-3B42RT products have reliable agreement with ground measurements in estimating and detecting rainfall events.CHIRPS-V2 reveals its outstanding skill over other products and GSMAP-NRT is the worst.Both bias-correction methods significantly improve all-product estimates, with linear scaling slightly better than power transformation. |
| 英文关键词 | Rainfall; satellite precipitation; CHIRPS; bias correction; linear scaling; power transformation; Blue Nile basin |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Science & Technology - Other Topics |
| WOS类目 | Geosciences, Multidisciplinary ; Multidisciplinary Sciences |
| WOS记录号 | WOS:001159746000003 |
| 来源期刊 | JOURNAL OF EARTH SYSTEM SCIENCE
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/300114 |
| 作者单位 | Egyptian Knowledge Bank (EKB); Tanta University; McMaster University |
| 推荐引用方式 GB/T 7714 | Gado, Tamer A.,Zamzam, Dina H.,Guo, Yiping,et al. Evaluation of satellite-based rainfall estimates in the upper Blue Nile basin[J],2024,133(1). |
| APA | Gado, Tamer A.,Zamzam, Dina H.,Guo, Yiping,&Zeidan, Bakenaz A..(2024).Evaluation of satellite-based rainfall estimates in the upper Blue Nile basin.JOURNAL OF EARTH SYSTEM SCIENCE,133(1). |
| MLA | Gado, Tamer A.,et al."Evaluation of satellite-based rainfall estimates in the upper Blue Nile basin".JOURNAL OF EARTH SYSTEM SCIENCE 133.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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