Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan
Study region: Eighteen main rivers in Taiwan. Study focus: The concept of total stream power (TSP) or specific stream power (SSP) has been investigated previously as an index for assessing the status of a river channel. Here, we introduce a new diagram called the “stream power loop” to review variat...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581823001593 |
| _version_ | 1797780051216826368 |
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| author | Su-Chin Chen Jui-Tien Tsai Yi-Chin Chen Fu-Hsuan Tsai Chia-Yin Liang Yen-Yu Chiu |
| author_facet | Su-Chin Chen Jui-Tien Tsai Yi-Chin Chen Fu-Hsuan Tsai Chia-Yin Liang Yen-Yu Chiu |
| author_sort | Su-Chin Chen |
| collection | DOAJ |
| description | Study region: Eighteen main rivers in Taiwan. Study focus: The concept of total stream power (TSP) or specific stream power (SSP) has been investigated previously as an index for assessing the status of a river channel. Here, we introduce a new diagram called the “stream power loop” to review variations in fluvial conditions, morphology, and sediment transport potential from river source to estuary. Because of its physical basis, the loop diagram reflects fluvial morphology and watershed conditions. Additionally, we present a spiral diagram that depicts variations in the spatial gradients of TSP and SSP. The gradient implied the sediment transport trend, which from upstream to downstream changes gradually from scouring to siltation in ideal conditions. The loop and spiral diagrams provide an overview of the fluvial system. New hydrological insights for the region: The loop diagram applications in Taiwan categorized the rivers into three types: simple loop, maple-leaf loop, and complex loop. Diverse geology increases the likelihood of large tributaries and abrupt changes in terrain, both of which affect the components of stream power–discharge and slope. The scatter distribution of all the data aggregated from the 18 rivers showed a shrinking radius and a counter-clockwise spiral pathway, passing through the mountain river zone, the braided river zone, and finally to the straight & meandering river zone. The result supported the concept of stream power loop and indicated that stream power loop can interpret the status of the river systems. |
| first_indexed | 2024-03-12T23:39:04Z |
| format | Article |
| id | doaj.art-be12467ae8df48b081c54acb89de4d75 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-03-12T23:39:04Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-be12467ae8df48b081c54acb89de4d752023-07-15T04:28:43ZengElsevierJournal of Hydrology: Regional Studies2214-58182023-08-0148101472Stream power curve–loop–spiral conceptual method and an application to rivers of TaiwanSu-Chin Chen0Jui-Tien Tsai1Yi-Chin Chen2Fu-Hsuan Tsai3Chia-Yin Liang4Yen-Yu Chiu5Department of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, Taiwan; Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Geography, National Changhua University of Education, Changhua 50007, TaiwanDepartment of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Soil and Water Conservation, National Chung Hsing University, Taichung 40227, Taiwan; Corresponding author.Study region: Eighteen main rivers in Taiwan. Study focus: The concept of total stream power (TSP) or specific stream power (SSP) has been investigated previously as an index for assessing the status of a river channel. Here, we introduce a new diagram called the “stream power loop” to review variations in fluvial conditions, morphology, and sediment transport potential from river source to estuary. Because of its physical basis, the loop diagram reflects fluvial morphology and watershed conditions. Additionally, we present a spiral diagram that depicts variations in the spatial gradients of TSP and SSP. The gradient implied the sediment transport trend, which from upstream to downstream changes gradually from scouring to siltation in ideal conditions. The loop and spiral diagrams provide an overview of the fluvial system. New hydrological insights for the region: The loop diagram applications in Taiwan categorized the rivers into three types: simple loop, maple-leaf loop, and complex loop. Diverse geology increases the likelihood of large tributaries and abrupt changes in terrain, both of which affect the components of stream power–discharge and slope. The scatter distribution of all the data aggregated from the 18 rivers showed a shrinking radius and a counter-clockwise spiral pathway, passing through the mountain river zone, the braided river zone, and finally to the straight & meandering river zone. The result supported the concept of stream power loop and indicated that stream power loop can interpret the status of the river systems.http://www.sciencedirect.com/science/article/pii/S2214581823001593Stream powerRiver zone classificationFluvial morphologyCurve-loop-spiral method |
| spellingShingle | Su-Chin Chen Jui-Tien Tsai Yi-Chin Chen Fu-Hsuan Tsai Chia-Yin Liang Yen-Yu Chiu Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan Journal of Hydrology: Regional Studies Stream power River zone classification Fluvial morphology Curve-loop-spiral method |
| title | Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan |
| title_full | Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan |
| title_fullStr | Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan |
| title_full_unstemmed | Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan |
| title_short | Stream power curve–loop–spiral conceptual method and an application to rivers of Taiwan |
| title_sort | stream power curve loop spiral conceptual method and an application to rivers of taiwan |
| topic | Stream power River zone classification Fluvial morphology Curve-loop-spiral method |
| url | http://www.sciencedirect.com/science/article/pii/S2214581823001593 |
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