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:: Volume 3, Issue 6 (4-2009) ::
jwmseir 2009, 3(6): 17-26 Back to browse issues page
Comparison of Interpolation Methods in Study of Bed Topography on Channels Bend
Mohammad Vaghefi *, Ali Ahmadabadi, Amanollah Fathnia, Masoud Ghodsian
Persian Gulf University-Bushehr, Iran
Abstract:   (10672 Views)

The study of changes of sediment beds is of the issues which has attracted River engineers. Attention to

investigate the rate of scour and sedimentation is significant in bend of rivers rather than straight rivers.

The change of bed topography, scour and sedimentation pattern have caught the attention of hydraulic

engineering profession. This paper examines the topography changes using experimental data in 90 degree

bend and bend with T shape spur dike in outer bank. For this purpose interpolate methods such as IDW,

KRIGING and SPLINE Tension used to convert point measurement to continuous surfaces. Accuracy

assessment accomplished by validation method. The result showed that KRIGING methods have best

accuracy to create surfaces for studying bed topography in Bend Rivers.

Keywords: Geostatistic, Kriging, IDW, Spline and 90 Degree Bend.
Full-Text [PDF 629 kb]   (2046 Downloads)    
Type of Study: Research | Subject: Special
Received: 2013/02/3 | Accepted: 2014/05/25 | Published: 2014/05/25
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Vaghefi M, Ahmadabadi A, Fathnia A, Ghodsian M. Comparison of Interpolation Methods in Study of Bed Topography on Channels Bend. jwmseir. 2009; 3 (6) :17-26
URL: http://jwmsei.ir/article-1-98-en.html

Volume 3, Issue 6 (4-2009) Back to browse issues page
مجله علوم ومهندسی آبخیزداری ایران Iranian Journal of Watershed Management Science and Engineering
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