Publications

Dey, Aveedibya; Bhattacharya, Rajib Kumar (2014). Monitoring of River Center Line and Width-A Study on River Brahmaputra. JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING, 42(2), 475-482.

Abstract
Monitoring of river width and centerline is one of the most important activities in river engineering. Changes in the width and center line can be attributed to several reasons and monitoring these changes can be conveniently achieved with the aid of remote sensing images. In this study, digital image processing techniques have been implemented using the image processing tool-box available in MATLAB for studying temporal variations of width and centerline of the river Brahmaputra in its 300 Km reach in the state of Assam, India. The current study uses relatively high resolution imageries acquired from the LANDSAT series of satellites. Apart from the LANDSAT imageries, the low resolution imageries acquired by MODIS program is also used in order to see the variation in the obtained results. The evaluation of the results shows that the digital image processing technique is very handy and can be applied to obtain the centerline and width of a river. The evaluation also shows that the low resolution image can also be used for obtaining centerline of a river. However, it may give erroneous result when width of the river is narrow or very large.

DOI:
10.1007/s12524-013-0277-0

ISSN:
0255-660X; 0974-3006