NDLI: Temporal variation characteristics of flow and water level in the Old Brahmaputra River

Content Provider	IEEE Xplore Digital Library
Author	Mortuza, M.R. Rashid, U.S. Rajib, M.A. Rahman, M.M.
Copyright Year	2011
Description	Author affiliation: Dept. of Civil Eng., Bangladesh Univ. of Eng. & Technol. (BUET), Dhaka, Bangladesh (Rajib, M.A.; Rahman, M.M.)
Abstract	The principal objective of this paper is to assess the variability of water level and flow of the Old Brahmaputra River. The water level and Discharge trend of the river has been assessed based on historical data to find the variability over time. Average monthly discharge at a particular gauge station of the river has been plotted for the duration of 1975 to 2006 for each of the month to have an observed flow trend characteristics through time. The trend lines show that the river has undergone a considerable declination during the period. The wet period show large fluctuations of flow in a range of 2200 to 500 $m^{3}/s$ with a sharp decreasing pattern. The wet period flow of Old Brahmaputra River shows relatively lower discharge almost in every alternative year and its declination is radical compared to dry period flow. Alike discharge pattern water level also shows decreasing trend. Frequent fluctuations of water level are observed during the period from 1991-2008 when it shows more dispersive nature in the monsoon months. This declination of water level is observed to be faster during 1991-2008 than 1973-1990.
Starting Page	1132
Ending Page	1135
File Size	406367
Page Count	4
File Format	PDF
ISBN	9781612843391
e-ISBN	9781612843407
DOI	10.1109/ISWREP.2011.5893214
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Water Availability Fluctuations Water level Trend River Rivers Season Water resources Civil engineering Meteorology Flow
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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