基于多源数据估算河槽 -沙洲系统地形变化———以长江张家洲河段为例

Wen Tong Zhang; Xin Yan Xia; Jian Ping Wu; Shu Wei Zheng; Yan Huang; Wei Hua Yin

doi:10.11870/cjlyzyyhj202507013

基于多源数据估算河槽 -沙洲系统地形变化———以长江张家洲河段为例

Translated title of the contribution: Estimation of Topographic Changes of Channel-sandbar System Based on Multi-source Data—A Case Study of Zhangjiazhou Reach in the Yangtze River

Wen Tong Zhang, Xin Yan Xia, Jian Ping Wu, Shu Wei Zheng, Yan Huang, Wei Hua Yin

School of Geographic Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

The channel-sandbar system (CSS) is a common geomorphic combination of rivers, and its development and evolution may pose a threat to safety of navigation, water-related engineering, and flood control. The evolution of CSS involves both subaerial and subaqueous parts. Accurately calculating the amount of topographic change remains a challenge in geomorphology. This study took the CSS of Zhangjiazhou reach of the Yangtze River as an example. The joint changes in the volume of subaerial sandbars and subaqueous channel-sandbars were considered. Based on navigation reference plane and the measured water level at hydrological stations, remote sensing images and navigation maps were corrected to a unified elevation reference. An integrated digital elevation model (DEM) for the evolution of CSS volume was developed. The results indicated that this method could efficiently calculate the volume changes of the CSS. From 1993 to 2019, the changes of CSS in the study area was indicated as erosion (12. 85 × 10⁶ m³ in 1993-2008), siltation (8. 14 × 10⁶ m³ in 2008-2013), and siltation (15. 72 × 10⁶m³ in 2013-2019) . Overall, the volume of the CSS in the study area increased by 11. 77 × 10⁶m³ during 1993-2019, which was equivalent to 14. 12 × 10⁶ t of sediment deposition, using a sediment bulk density of 1. 2 t / m³.

Translated title of the contribution	Estimation of Topographic Changes of Channel-sandbar System Based on Multi-source Data—A Case Study of Zhangjiazhou Reach in the Yangtze River
Original language	Chinese (Traditional)
Pages (from-to)	1556-1565
Number of pages	10
Journal	Resources and Environment in the Yangtze Basin
Volume	34
Issue number	7
DOIs	https://doi.org/10.11870/cjlyzyyhj202507013
State	Published - Jul 2025

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title = "基于多源数据估算河槽 -沙洲系统地形变化———以长江张家洲河段为例",

abstract = "The channel-sandbar system (CSS) is a common geomorphic combination of rivers, and its development and evolution may pose a threat to safety of navigation, water-related engineering, and flood control. The evolution of CSS involves both subaerial and subaqueous parts. Accurately calculating the amount of topographic change remains a challenge in geomorphology. This study took the CSS of Zhangjiazhou reach of the Yangtze River as an example. The joint changes in the volume of subaerial sandbars and subaqueous channel-sandbars were considered. Based on navigation reference plane and the measured water level at hydrological stations, remote sensing images and navigation maps were corrected to a unified elevation reference. An integrated digital elevation model (DEM) for the evolution of CSS volume was developed. The results indicated that this method could efficiently calculate the volume changes of the CSS. From 1993 to 2019, the changes of CSS in the study area was indicated as erosion (12. 85 × 106 m3 in 1993-2008), siltation (8. 14 × 106 m3 in 2008-2013), and siltation (15. 72 × 106m3 in 2013-2019) . Overall, the volume of the CSS in the study area increased by 11. 77 × 106m3 during 1993-2019, which was equivalent to 14. 12 × 106 t of sediment deposition, using a sediment bulk density of 1. 2 t / m3.",

keywords = "multi-source data, sediment estimation, the Yangtze River, topographic change",

author = "Zhang, \{Wen Tong\} and Xia, \{Xin Yan\} and Wu, \{Jian Ping\} and Zheng, \{Shu Wei\} and Yan Huang and Yin, \{Wei Hua\}",

year = "2025",

month = jul,

doi = "10.11870/cjlyzyyhj202507013",

language = "繁体中文",

volume = "34",

pages = "1556--1565",

journal = "Resources and Environment in the Yangtze Basin",

issn = "1004-8227",

publisher = "Editorial office of Resources and Environment in the Yangtze Basin",

number = "7",

}

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T1 - 基于多源数据估算河槽 -沙洲系统地形变化———以长江张家洲河段为例

AU - Zhang, Wen Tong

AU - Xia, Xin Yan

AU - Wu, Jian Ping

AU - Zheng, Shu Wei

AU - Huang, Yan

AU - Yin, Wei Hua

PY - 2025/7

Y1 - 2025/7

N2 - The channel-sandbar system (CSS) is a common geomorphic combination of rivers, and its development and evolution may pose a threat to safety of navigation, water-related engineering, and flood control. The evolution of CSS involves both subaerial and subaqueous parts. Accurately calculating the amount of topographic change remains a challenge in geomorphology. This study took the CSS of Zhangjiazhou reach of the Yangtze River as an example. The joint changes in the volume of subaerial sandbars and subaqueous channel-sandbars were considered. Based on navigation reference plane and the measured water level at hydrological stations, remote sensing images and navigation maps were corrected to a unified elevation reference. An integrated digital elevation model (DEM) for the evolution of CSS volume was developed. The results indicated that this method could efficiently calculate the volume changes of the CSS. From 1993 to 2019, the changes of CSS in the study area was indicated as erosion (12. 85 × 106 m3 in 1993-2008), siltation (8. 14 × 106 m3 in 2008-2013), and siltation (15. 72 × 106m3 in 2013-2019) . Overall, the volume of the CSS in the study area increased by 11. 77 × 106m3 during 1993-2019, which was equivalent to 14. 12 × 106 t of sediment deposition, using a sediment bulk density of 1. 2 t / m3.

AB - The channel-sandbar system (CSS) is a common geomorphic combination of rivers, and its development and evolution may pose a threat to safety of navigation, water-related engineering, and flood control. The evolution of CSS involves both subaerial and subaqueous parts. Accurately calculating the amount of topographic change remains a challenge in geomorphology. This study took the CSS of Zhangjiazhou reach of the Yangtze River as an example. The joint changes in the volume of subaerial sandbars and subaqueous channel-sandbars were considered. Based on navigation reference plane and the measured water level at hydrological stations, remote sensing images and navigation maps were corrected to a unified elevation reference. An integrated digital elevation model (DEM) for the evolution of CSS volume was developed. The results indicated that this method could efficiently calculate the volume changes of the CSS. From 1993 to 2019, the changes of CSS in the study area was indicated as erosion (12. 85 × 106 m3 in 1993-2008), siltation (8. 14 × 106 m3 in 2008-2013), and siltation (15. 72 × 106m3 in 2013-2019) . Overall, the volume of the CSS in the study area increased by 11. 77 × 106m3 during 1993-2019, which was equivalent to 14. 12 × 106 t of sediment deposition, using a sediment bulk density of 1. 2 t / m3.

KW - multi-source data

KW - sediment estimation

KW - the Yangtze River

KW - topographic change

UR - https://www.scopus.com/pages/publications/105011708419

U2 - 10.11870/cjlyzyyhj202507013

DO - 10.11870/cjlyzyyhj202507013

M3 - 文章

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SN - 1004-8227

VL - 34

SP - 1556

EP - 1565

JO - Resources and Environment in the Yangtze Basin

JF - Resources and Environment in the Yangtze Basin

IS - 7

ER -

基于多源数据估算河槽 -沙洲系统地形变化———以长江张家洲河段为例

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