A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Morphological changes at the Nanakita River mouth after the Great East Japan Tsunami of 2011
Abstract This study investigates the morphological changes near the Nanakita River mouth in Japan. The morphology of the river mouth was greatly influenced during the Great East Japan Tsunami of 2011. The gradual morphological changes at the river mouth were investigated using two sets of data, of which, one was the continuous water level measurement data in the river entrance and in the sea, and the other being the intermittent aerial-photographs. The statistical parameters, viz., the correlation coefficient and the linear gradient between the two water level data, were analyzed, which formed as the basic for understanding the behavior of the river mouth, like river mouth closure or opening detected by the analysis of the water level variation. The proposed method is found efficient and effective in the evaluation of the morphological changes near a river mouth.
Highlights A new method for monitoring the river mouth condition based on water level analysis. The method was developed based on correlation coefficient and linear regression. The proposed method is accurate, verified with the available aerial photos. Effective and efficient for assessing the morphological changes of a river mouth.
Morphological changes at the Nanakita River mouth after the Great East Japan Tsunami of 2011
Abstract This study investigates the morphological changes near the Nanakita River mouth in Japan. The morphology of the river mouth was greatly influenced during the Great East Japan Tsunami of 2011. The gradual morphological changes at the river mouth were investigated using two sets of data, of which, one was the continuous water level measurement data in the river entrance and in the sea, and the other being the intermittent aerial-photographs. The statistical parameters, viz., the correlation coefficient and the linear gradient between the two water level data, were analyzed, which formed as the basic for understanding the behavior of the river mouth, like river mouth closure or opening detected by the analysis of the water level variation. The proposed method is found efficient and effective in the evaluation of the morphological changes near a river mouth.
Highlights A new method for monitoring the river mouth condition based on water level analysis. The method was developed based on correlation coefficient and linear regression. The proposed method is accurate, verified with the available aerial photos. Effective and efficient for assessing the morphological changes of a river mouth.
Morphological changes at the Nanakita River mouth after the Great East Japan Tsunami of 2011
Tanaka, Hitoshi (author) / Adityawan, Mohammad Bagus (author) / Mano, Akira (author)
Coastal Engineering ; 86 ; 14-26
2014-01-03
13 pages
Article (Journal)
Electronic Resource
English
Morphological changes at the Nanakita River mouth after the Great East Japan Tsunami of 2011
| Online Contents | 2014
Morphological changes at the Nanakita River mouth after the Great East Japan Tsunami of 2011
| British Library Online Contents | 2014
| British Library Conference Proceedings | 2013
Tsunami Disaster - induced by the 2011 Great East Japan Earthquake
| HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2011