Next Article in Journal
Macroinvertebrate Biodiversity Trends and Habitat Relationships within Headwater Rivers of the Qinghai-Tibet Plateau
Previous Article in Journal
New Hybrids of ANFIS with Several Optimization Algorithms for Flood Susceptibility Modeling
Article Menu

Export Article

Open AccessArticle
Water 2018, 10(9), 1213; https://doi.org/10.3390/w10091213

An Integrated Hydrological-Hydraulic Model for Simulating Surface Water Flows of a Shallow Lake Surrounded by Large Floodplains

1
Graduate School of Global Environmental Studies, Kyoto University, C1-1, Kyotodaigaku-katsura, Nishikyoku, Kyoto 606-8501, Japan
2
Faculty of Life and Environmental Science, Shimane University, Nishikawatsu-cho 1060, Matsue, Shimane 690-8504, Japan
3
Department of Civil and Environmental Engineering, Tokyo Institute of Technology, 2-12-1-M1-4, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
4
Department of Chemical Engineering and Food Technology, Institute of Technology of Cambodia, Cambodia, P.O. Box 86, Phnom Penh 12156, Cambodia
5
Faculty of Agriculture, Yamagata University, 1-23, Wakaba-machi, Tsuruoka, Yamagata 997-8555, Japan
6
Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, 308, Suematsu 1, Nonoichi, Ishikawa 921-8836, Japan
7
Faculty of Engineering, Toyama Prefectural University, 5180, Kurokawa, Imizu-shi, Toyama 939-0398, Japan
8
Faculty of Hydrology and Water Resources Engineering, Institute of Technology of Cambodia, Russian Confederation Blvd, Phnom Penh 12156, Cambodia
*
Author to whom correspondence should be addressed.
Received: 16 July 2018 / Revised: 14 August 2018 / Accepted: 5 September 2018 / Published: 7 September 2018
(This article belongs to the Section Hydrology)
Full-Text   |   PDF [22242 KB, uploaded 8 September 2018]   |  

Abstract

An integrated hydrological-hydraulic model employing the 2-D local inertial equation as the core is established for effective numerical simulation of surface water flows in a great lake and its floodplain. The model is a cascade of validated hydrological and hydraulic sub-models. The model was applied to simulating the surface water flows of the Tonle Sap Lake and its floodplain in Cambodia using the roughness coefficient value calibrated comparing with a remote-sensing data set. The resulting model reasonably handles backwater flows during the rainy season and simulates the propagations of wet and dry interfaces without numerical instability, owing to a proper setting of time step supported by a novel numerical stability analysis. Sensitivity analysis of the surface water dynamics focusing on the setting of roughness coefficient and the backwater effect was also carried out. Overall, utilizing the 2-D local inertial equation in the assessment of lake water dynamics is a new modelling approach, which turns out to be an efficient simulation tool. View Full-Text
Keywords: integrated hydrological-hydraulic model; local inertial equation; floodplain; finite difference scheme; Tonle Sap Lake integrated hydrological-hydraulic model; local inertial equation; floodplain; finite difference scheme; Tonle Sap Lake
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Tanaka, T.; Yoshioka, H.; Siev, S.; Fujii, H.; Fujihara, Y.; Hoshikawa, K.; Ly, S.; Yoshimura, C. An Integrated Hydrological-Hydraulic Model for Simulating Surface Water Flows of a Shallow Lake Surrounded by Large Floodplains. Water 2018, 10, 1213.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top