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作 者:Prabhata K. SWAMEE Barham PARKASH Jayaprakash V THOMAS Satvindar SINGH
出 处:《International Journal of Sediment Research》2003年第3期219-231,共13页国际泥沙研究(英文版)
摘 要:Morphological analyses require quantitative description of river course by providing its equation. Such an equation is not possible as the river plan-form contains loops that cannot be described by it. To circumvent this difficulty a system of parametric equations is devised for describing the river plan-form. The system of equations was used to obtain morphological attributes like sinuosity and curvature. Using the plan-form data for the River Ganga for years 1780, 1828, 1853, 1935 and 1978 the parametric equations were setup for these years. The plan-forms were to study the changes in channel pattern, sinuosities and mode of movement of meander loops with time in the last two centuries and in the downstream direction in the Ganga River between Mustafabad and Rajmahal over about 900 km long course.Morphological analyses require quantitative description of river course by providing its equation. Such an equation is not possible as the river plan-form contains loops that cannot be described by it. To circumvent this difficulty a system of parametric equations is devised for describing the river plan-form. The system of equations was used to obtain morphological attributes like sinuosity and curvature. Using the plan-form data for the River Ganga for years 1780, 1828, 1853, 1935 and 1978 the parametric equations were setup for these years. The plan-forms were to study the changes in channel pattern, sinuosities and mode of movement of meander loops with time in the last two centuries and in the downstream direction in the Ganga River between Mustafabad and Rajmahal over about 900 km long course.
关 键 词:Alluvial stream Fourier series Curvature MEANDERS Morphology Plan-form River course River Ganga SINUOSITY
分 类 号:TV147[水利工程—水力学及河流动力学]
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