Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India?
This study focuses on the role of topography in downstream changes in channel morphology of a monsoon dominated Dwarkeswar River with sixty cross-sections. Bankfull channel characteristics, flow characteristics, sediment characteristics and channel pattern were analysed with respect to dissected pla...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2020-01-01
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| Series: | HydroResearch |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S258975782030010X |
| _version_ | 1819122520814518272 |
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| author | Sadhan Malik Subodh Chandra Pal |
| author_facet | Sadhan Malik Subodh Chandra Pal |
| author_sort | Sadhan Malik |
| collection | DOAJ |
| description | This study focuses on the role of topography in downstream changes in channel morphology of a monsoon dominated Dwarkeswar River with sixty cross-sections. Bankfull channel characteristics, flow characteristics, sediment characteristics and channel pattern were analysed with respect to dissected plateau, plateau-fringe and alluvial plain using statistical analysis. There was a significantly positive relation with distance from source and width (r = 0.874), width/depth ratio (r = 0.607) and flow area (r = 0.926) in the dissected plateau, although a significantly negative relation was found in the alluvial plain (width (r = −0.963), width/depth ratio (r = −0.897), and flow area (r = −0.821)). Overall, the channel dimensions diminished in the alluvial area by 6–7 times. In both these cases, TSI values were higher than the HSI. In the PCA-1, topographic factors were more dominant and the role of drainage area, elevation, slope, basin shape and depth of sediment were opposite to each other in comparison with dissected plateau and alluvial plain. |
| first_indexed | 2024-12-22T06:53:46Z |
| format | Article |
| id | doaj.art-b8fe724f808d46a6a92f1fb8ddd10909 |
| institution | Directory Open Access Journal |
| issn | 2589-7578 |
| language | English |
| last_indexed | 2024-12-22T06:53:46Z |
| publishDate | 2020-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | HydroResearch |
| spelling | doaj.art-b8fe724f808d46a6a92f1fb8ddd109092022-12-21T18:35:02ZengKeAi Communications Co., Ltd.HydroResearch2589-75782020-01-0131531Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India?Sadhan Malik0Subodh Chandra Pal1Department of Geography, The University of Burdwan, Burdwan, West Bengal, IndiaCorresponding author.; Department of Geography, The University of Burdwan, Burdwan, West Bengal, IndiaThis study focuses on the role of topography in downstream changes in channel morphology of a monsoon dominated Dwarkeswar River with sixty cross-sections. Bankfull channel characteristics, flow characteristics, sediment characteristics and channel pattern were analysed with respect to dissected plateau, plateau-fringe and alluvial plain using statistical analysis. There was a significantly positive relation with distance from source and width (r = 0.874), width/depth ratio (r = 0.607) and flow area (r = 0.926) in the dissected plateau, although a significantly negative relation was found in the alluvial plain (width (r = −0.963), width/depth ratio (r = −0.897), and flow area (r = −0.821)). Overall, the channel dimensions diminished in the alluvial area by 6–7 times. In both these cases, TSI values were higher than the HSI. In the PCA-1, topographic factors were more dominant and the role of drainage area, elevation, slope, basin shape and depth of sediment were opposite to each other in comparison with dissected plateau and alluvial plain.http://www.sciencedirect.com/science/article/pii/S258975782030010XDecreasing channel dimensionTopographic Sinuosity IndexHydraulic Sinuosity IndexSlopeElevationBasin shape |
| spellingShingle | Sadhan Malik Subodh Chandra Pal Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? HydroResearch Decreasing channel dimension Topographic Sinuosity Index Hydraulic Sinuosity Index Slope Elevation Basin shape |
| title | Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? |
| title_full | Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? |
| title_fullStr | Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? |
| title_full_unstemmed | Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? |
| title_short | Is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated Dwarkeswar River, Eastern India? |
| title_sort | is the topography playing a dual role in controlling downstream channel morphology of a monsoon dominated dwarkeswar river eastern india |
| topic | Decreasing channel dimension Topographic Sinuosity Index Hydraulic Sinuosity Index Slope Elevation Basin shape |
| url | http://www.sciencedirect.com/science/article/pii/S258975782030010X |
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