Volume : V, Issue : VIII, August - 2015

MEANDERING FACTOR” ANALYSIS FOR THE STUDY OF PRESENT MICROGEOMORPHIC STATUS OF RUNOFF CHANNEL BASIN

Dr. Subhendu Ghosh

Abstract :

 This study deals with the mathematical testing for analysing microgeomorphic or small area geomorphic status of runoff channels. A field study was conducted on Rangamati Gully Basin of lateric highland of West Medinipur district in India, to generate primary data for mathematical application. True length and shortest linear distances of the runoff channels were measured for the analysis of their microgeomorphic status by mathematical testing. A suitable channel network model was prepared and hardware model testing was done in the laboratory for the contraction of mathematical logic. On the basis those testing “Meandering Factor Model”was developed which stands on two logics, firstly ifany other external factors are absent, the general tendency of water flow is straight by the influence of acceleration due to gravity and secondly the external factors like initial slope condition, structure and vegetation cover along with gravity play vital role for the extension meandering flow path of small runoff channels. By MFM calculation a MF Index was prepared. According to MF Index three categories of runoff channels in the study area were found suchas tramped shaped channels, represents the highest MFM Values, >0.04, narrow elongated channels, having 0.15 to 0.40 MFM Valuesand scour network channels which have the lowest MFM Values from 0.01 to 0.14. Presence of lower MF Index channels in higher number in the study area indicates that this gully basin is still under the stage of development and modifying rapidly.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

Dr.Subhendu Ghosh Meandering Factor� Analysis For The Study of Present Microgeomorphic Status of Runoff Channel Basin Indian Journal of Applied Research, Vol.5, Issue : 8 August 2015

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