气候变化领域集成服务门户(CCPortal): A Temporal Downscaling Model for Gridded Geophysical Data with Enhanced Residual U-Net

CCPortal

DOI	10.3390/rs16030442
	A Temporal Downscaling Model for Gridded Geophysical Data with Enhanced Residual U-Net
	Wang, Liwen; Li, Qian; Peng, Xuan; Lv, Qi
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	3
卷号	16 期号:3
英文摘要	Temporal downscaling of gridded geophysical data is essential for improving climate models, weather forecasting, and environmental assessments. However, existing methods often cannot accurately capture multi-scale temporal features, affecting their accuracy and reliability. To address this issue, we introduce an Enhanced Residual U-Net architecture for temporal downscaling. The architecture, which incorporates residual blocks, allows for deeper network structures without the risk of overfitting or vanishing gradients, thus capturing more complex temporal dependencies. The U-Net design inherently can capture multi-scale features, making it ideal for simulating various temporal dynamics. Moreover, we implement a flow regularization technique with advection loss to ensure that the model adheres to physical laws governing geophysical fields. Our experimental results across various variables within the ERA5 dataset demonstrate an improvement in downscaling accuracy, outperforming other methods.
英文关键词	temporal downscaling; U-Net; flow regularization; residual blocks; ERA5
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001160089700001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/291267
作者单位	National University of Defense Technology - China
推荐引用方式 GB/T 7714	Wang, Liwen,Li, Qian,Peng, Xuan,et al. A Temporal Downscaling Model for Gridded Geophysical Data with Enhanced Residual U-Net[J],2024,16(3).
APA	Wang, Liwen,Li, Qian,Peng, Xuan,&Lv, Qi.(2024).A Temporal Downscaling Model for Gridded Geophysical Data with Enhanced Residual U-Net.REMOTE SENSING,16(3).
MLA	Wang, Liwen,et al."A Temporal Downscaling Model for Gridded Geophysical Data with Enhanced Residual U-Net".REMOTE SENSING 16.3(2024).