气候变化领域集成服务门户(CCPortal): Analysis of the future trends of typical mountain glacier movements along the Sichuan-Tibet Railway based on ConvGRU network

CCPortal

DOI	10.1080/17538947.2022.2152884
	Analysis of the future trends of typical mountain glacier movements along the Sichuan-Tibet Railway based on ConvGRU network
	Zhang, Yali; Zhang, Lifeng; He, Yi; Yao, Sheng; Yang, Wang; Cao, Shengpeng; Sun, Qiang
发表日期	2023
ISSN	1753-8947
EISSN	1753-8955
起始页码	762
结束页码	780
卷号	16 期号:1
英文摘要	The anomalous movements of glaciers cause disasters, such as debris flows and landslides. It is very important to assess the glacier movements and their future trends. Glacier velocity refers to movement process. The current research aims to analyse past and current spatiotemporal changes in glacier velocity. No study has used neural network model to conduct a spatiotemporal prediction for glacier velocity. Therefore, this paper selected typical mountain glaciers G2 and G5 along the Sichuan-Tibet Railway as research objects and constructed the Convolutional Gate Recurrent Unit (ConvGRU) spatiotemporal prediction model based on 1988-2018 Landsat data to predict velocities in 2019-2028, and analysed the future trends of G2 and G5. The evaluation indexes met the model requirements to a large extent, quantitatively showing that the model has high accuracy and can successfully capture the fluctuation changes in time series data of glacier velocity. The mean deviations of G2 and G5 were 0.09 and -0.47 m/yr, respectively, reflecting the high reliability of the model applied to extraction of glacier velocity. The velocities of G2 and G5 showed a slow downtrend with fluctuations; that is, they will not cause damage to the construction and operation of the Sichuan-Tibet Railway in the short term.
关键词	Sichuan-Tibet railway typical mountain glacier ConvGRU velocity spatiotemporal prediction
英文关键词	SAR OFFSET-TRACKING; VELOCITY; COLLAPSE; MOTION; SURGE
WOS研究方向	Geography, Physical ; Remote Sensing
WOS记录号	WOS:000949516500001
来源期刊	INTERNATIONAL JOURNAL OF DIGITAL EARTH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282706
作者单位	Lanzhou Jiaotong University; Lanzhou Jiaotong University; Lanzhou Jiaotong University
推荐引用方式 GB/T 7714	Zhang, Yali,Zhang, Lifeng,He, Yi,et al. Analysis of the future trends of typical mountain glacier movements along the Sichuan-Tibet Railway based on ConvGRU network[J],2023,16(1).
APA	Zhang, Yali.,Zhang, Lifeng.,He, Yi.,Yao, Sheng.,Yang, Wang.,...&Sun, Qiang.(2023).Analysis of the future trends of typical mountain glacier movements along the Sichuan-Tibet Railway based on ConvGRU network.INTERNATIONAL JOURNAL OF DIGITAL EARTH,16(1).
MLA	Zhang, Yali,et al."Analysis of the future trends of typical mountain glacier movements along the Sichuan-Tibet Railway based on ConvGRU network".INTERNATIONAL JOURNAL OF DIGITAL EARTH 16.1(2023).