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Evaluating longshore sediment transport rates by integration of beach evolution model and GIS approach

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Title Evaluating longshore sediment transport rates by integration of beach evolution model and GIS approach
 
Creator Xing, Li
Yun-xuan, Zhou
Lian-peng, Zhang
Run-yuan, Kuang
 
Subject Longshore sediment transport rate
Geographical Information System
One-line model
End Point Rate
Muddy coast
 
Description 12-18
A new integration approach of beach
evolution model and Geographical Information System (GIS) is developed to
evaluate the longshore sediment transport rates. Nanhui Beach of Shanghai is
selected as study area to demonstrate an integration scheme. Study area is
partitioned into some calculation units. It is further and modified one-line
model to meet complex physical settings of the study area. Firstly, we got the
0-m isobaths, as the beach evolution indicator. It is developed by digitizing the
nautical charts of 1990 and 2004. Shoreline change rates were derived from End
Point Rate (EPR) method based on GIS. Bathymetry was digitized from the
nautical charts to calculate the beach evolution complexity factor in the
modified one-line model. The closure depth can be obtained from the published
literatures about the study area. Longshore sediment transport rate of every
calculation unit was calculated by inversion of the modified one-line model. Results
show that integration scheme is effective and the precision is high. Total
relative error is 8.77%.
 
Date 2012-01-25T04:09:07Z
2012-01-25T04:09:07Z
2012-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/13450
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.41(1) [February 2012]