Knowledge Commons of Institute of Automation,CAS
Graph Convolutional Regression Networks for Quantitative Precipitation Estimation | |
Yajing Wu; Yongqiang Tang; Xuebing Yang; Wensheng Zhang; Guoping Zhang | |
发表期刊 | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS |
2021-07 | |
卷号 | 18期号:7页码:1124-1128 |
摘要 | Accurate and high-resolution quantitative precipitation estimation (QPE) plays a crucial role in meteorology and hydrology. However, for acquiring a more accurate QPE, how to depict the complex nonlinear relationship between the radar reflectivity and the true rain rates, as well as adaptively explore the spatial dependencies of precipitation, remains extremely challenging. In this letter, we propose to incorporate the merits of graph convolutional regression networks (GCRNs) and address the aforementioned issues simultaneously in the GCRNs framework. Furthermore, in order to tolerate the variabilities of spatial correlation in the practical precipitation, we expand GCRNs with a multiconvolutional mechanism between the center node and its neighbor rain gauges. Thus, the ability to capture more complicated spatial characteristics of precipitation can be enhanced, and the phenomenon of overwhelming by the neighbor nodes can be released. Extensive experiments were implemented on 12 rainfall processes in Hangzhou, China, 2015. The experimental results confirm that our proposal consistently outperforms the state-of-the-art QPE models. |
关键词 | graph convolutional networks precipitation estimation |
收录类别 | SCI |
语种 | 英语 |
七大方向——子方向分类 | 机器学习 |
国重实验室规划方向分类 | 人工智能基础前沿理论 |
是否有论文关联数据集需要存交 | 否 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/44811 |
专题 | 中国科学院自动化研究所 精密感知与控制研究中心 |
推荐引用方式 GB/T 7714 | Yajing Wu,Yongqiang Tang,Xuebing Yang,et al. Graph Convolutional Regression Networks for Quantitative Precipitation Estimation[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2021,18(7):1124-1128. |
APA | Yajing Wu,Yongqiang Tang,Xuebing Yang,Wensheng Zhang,&Guoping Zhang.(2021).Graph Convolutional Regression Networks for Quantitative Precipitation Estimation.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,18(7),1124-1128. |
MLA | Yajing Wu,et al."Graph Convolutional Regression Networks for Quantitative Precipitation Estimation".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 18.7(2021):1124-1128. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
GRSL_Wu.pdf(6549KB) | 期刊 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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