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Principal component analysis for morphometric modelling for small watersheds of Tapi basin in India

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Title Principal component analysis for morphometric modelling for small watersheds of Tapi basin in India
Not Available
 
Creator S.P. Nikam, R.C. Purohit, M.G. Shinde, P.K. Singh, H.K. Jain & Pravin Dahiphle
 
Subject Principal component analysis, Geomorphological parameters, Morphometric model, Small watersheds
 
Description Not Available
Geomorphological models have been developed for prediction of sediment production rate
and runoff from the small watersheds of Tapi basin, Maharashtra, India. In this study, total of twelve
morphological parameters were selected and used after under gone principal component analysis. Principal
component analysis was carried out for grouping the different parameters into the principal components. To
understand the behaviour of all the parameters pertaining to study areas, and to reduce the dimensionality
of database, the data pertaining to twelve parameters of ten small watersheds were submitted for principal
component analysis. The method of components analysis, then, involves the rotation in the total variable
space - an orthogonal or uncorrelated transformation wherein each of the n original variables is describable,
in terms of the n new principal components. An important feature of the new components is that they
account, in turn, for a maximum amount of variance of the variables. Analysis extracted three components
as a principal components with 10 parameters, accounting for a total variance of 97.256 %. The first
component was highly correlated with Re
, Rc
, Sb
and Lbw accounting for 68.52 % variance. Second component
is strongly correlated with RN
accounting for 18.60 % variance and third with Sc
, accounting for 10.13 %
variance. Finally, these extracted 10 parameters were used for modeling for prediction of sediment yield
and runoff from selected small watersheds of Tapi basin, Maharashtra, India
Not Available
 
Date 2020-01-31T05:49:34Z
2020-01-31T05:49:34Z
2014-04
 
Type Article
 
Identifier S.P. Nikam, R.C. Purohit, M.G. Shinde, P.K. Singh, H.K. Jain & Pravin Dahiphle. (2014). Principal component analysis for morphometric modelling for small watersheds of Tapi basin in India. International Journal of agricultural Engineering 7(1): 186-189
ONLINE ISSN : 0976-7223 ISSN : 0974-2662
http://krishi.icar.gov.in/jspui/handle/123456789/31270
 
Language English
 
Relation Not Available;
 
Publisher HIND AGRICULTURAL RESEARCH AND TRAINING INSTITUTE