Dynamics of bar growth using remote sensing data

被引：0
|
作者：
Hossain, M.M. [1 ]
Hasan, M.K. [1 ]
Mukto, M.A. [1 ]
机构：
[1] Dept. of Water Resources Eng., Bangladesh Univ. of Eng./Tech., Dhaka 1000, Bangladesh
来源：
IAHS-AISH Publication | 2000年 / 267期
关键词：
Database systems - Geographic information systems - Hydrology - Morphology - Remote sensing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The dynamics of bar growth in alluvial rivers may be studied using remote sensing and hydrological data. Results of a study conducted to examine the morphological features of two characteristic bars of the Jamuna River in Bangladesh for the period from 1973 to 1997 based on PC ARC/INFO and Arc View GIS are presented. The study revealed that the area, average width and average length of the selected bar had an overall diminishing trend. A comparison of the common bar area in 1997 with that of 1973 showed the existing bar area reduces to about 2.5%. The study showed that the inundation of the selected bars increased from 271 ha to 418 ha due to a change in water level from 7.33 m to 9.05 m, whereas it increased from 418 ha to 2218 ha with a rise of water level from 9.05 m to 12.07 m. When the water level was at 17.5 m, the bars were completely submerged.
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页码：498 / 500
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