A two-dimensional hydrodynamic model for flood inundation simulation: a case study in the lower Mekong river basin

2007 ◽  
Vol 21 (9) ◽  
pp. 1223-1237 ◽  
Author(s):  
Dushmanta Dutta ◽  
Jahangir Alam ◽  
Kazuo Umeda ◽  
Masayoshi Hayashi ◽  
Sadayuki Hironaka
Keyword(s):  
River Basin ◽  
Hydrodynamic Model ◽  
Mekong River ◽  
Flood Inundation ◽  
Two Dimensional ◽  
Mekong River Basin ◽  
Inundation Simulation

scholarly journals River Levels Derived with CryoSat-2 SAR Data Classification—A Case Study in the Mekong River Basin

2017 ◽  
Vol 9 (12) ◽  
pp. 1238 ◽  
Author(s):  
Eva Boergens ◽  
Karina Nielsen ◽  
Ole Andersen ◽  
Denise Dettmering ◽  
Florian Seitz
Keyword(s):  
River Basin ◽  
Data Classification ◽  
Mekong River ◽  
Mekong River Basin ◽  
Sar Data

Lost in the waters: contemporary dilemmas in examining transboundary water interaction

2020 ◽  
Author(s):  
Richard Grünwald ◽  
Yan Feng ◽  
Wenling Wang
Keyword(s):  
River Basin ◽  
Legal Status ◽  
Process Tracing ◽  
Mekong River ◽  
Transboundary Water ◽  
Mekong River Basin ◽  
Interstate Relations ◽  
Water Interaction ◽  
Conflict Intensity

<p>The presented paper examines current dilemmas in transboundary water interaction and debates about the reconceptualization of the Transboundary Water Interaction Nexus (TWINS). The new TWINS framework provides a theoretical alternative how to (1) evaluate the interstate relations between two or more actors regardless their legal status; (2) calculate the transboundary water interaction based on process tracing analysis rather than milestone analysis; (3) distinguish more intensities of cooperation and conflict, (4) clarify broader hydropolitical context in transboundary water interaction, and (5) debate about dual water event phenomenon where one event may possess both cooperation and conflict features. Currently, the new TWINS model serves as an indicator for evaluating cooperation and conflict intensity of water-related events in the Lancang-Mekong River Basin. The data are then recorded in the Lancang-Mekong Cooperation and Conflict Database (LMCCD) designed by authors which already comprise more than 1600 water-related events in the last 30 years (1990-2020). To proof the viability of the presented concept, we will illustrate the new TWINS model on a case study related to the Xayaburi hydropower dam. Although there are still several methodological limitations, the new TWINS model can be adapted to any interstate water-related issue and be able to fill the information gaps about the interdisciplinary understanding of the transboundary water interaction.</p>

Development of new indicators to evaluate river fragmentation and flow regulation at large scales: A case study for the Mekong River Basin

2014 ◽  
Vol 45 ◽  
pp. 148-159 ◽  
Author(s):  
Günther Grill ◽  
Camille Ouellet Dallaire ◽  
Etienne Fluet Chouinard ◽  
Nikolai Sindorf ◽  
Bernhard Lehner
Keyword(s):  
River Basin ◽  
Flow Regulation ◽  
Mekong River ◽  
Mekong River Basin ◽  
River Fragmentation

Inundation Process in the Lower Mekong River Basin

2016 ◽  
Vol 11 (6) ◽  
pp. 1062-1072 ◽  
Author(s):  
Shun Kudo ◽  
◽  
Atsuhiro Yorozuya ◽  
Hiroshi Koseki ◽  
Yoichi Iwami ◽  
...  
Keyword(s):  
Shear Stress ◽  
Hydraulic Resistance ◽  
River Basin ◽  
Water Depth ◽  
Large Scale ◽  
River Channel ◽  
Mekong River ◽  
Mekong River Basin ◽  
Inundation Simulation ◽  
Inundation Extent

This study simulated the inundation process in the Lower Mekong River Basin (LMB). The LMB has suffered from severe floods, especially in 2000 and 2011. To quantify the inundation of water in a basin where large-scale inundation by river water occurs, understanding the conveyance of a river channel during a flood is particularly important. Therefore, we conducted a field survey using an acoustic Doppler current profiler (aDcp) to understand the longitudinal distribution of the width and depth of the river channel and the variation in hydraulic resistance with respect to shear stress on the riverbed. It was found that the width and depth vary longitudinally, and the relationship between them can be estimated by an equation derived from governing equations of water and sediment and the bed load formula. Furthermore, it was revealed that hydraulic resistance decreases with increasing non-dimensional shear stress. Then, the characteristics of the river channel were incorporated into the runoff-inundation simulation. Furthermore, inundation water should be validated not only in terms of inundation extent but also with respect to water depth and velocity. These were estimated using 8-day composite surface reflectance data from the Moderate Resolution Imaging Spectrometer (MODIS) and the SRTM. Simulation results indicated that water level and discharge within the river channel were able to reproduce observed values. Additionally, simulated inundation extent, water velocity, and water depth over the floodplain showed reasonable agreement with the results using the data from the MODIS and the SRTM. Although there are some elements that should be improved, the inundation process in the LMB was simulated appropriately despite its complexity. The method described in this study to set a calculation condition and to validate variables over a floodplain should be useful for runoff-inundation simulation in various large-scale basins.

scholarly journals Sediment related impacts of climate change and reservoir development in the Lower Mekong River Basin: a case study of the Nam Ou Basin, Lao PDR

2016 ◽  
Vol 149 (1) ◽  
pp. 13-27 ◽  
Author(s):  
Bikesh Shrestha ◽  
Shreedhar Maskey ◽  
Mukand S. Babel ◽  
Ann van Griensven ◽  
Stefan Uhlenbrook
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Lao Pdr ◽  
Mekong River ◽  
Mekong River Basin ◽  
Reservoir Development ◽  
Impacts Of Climate Change

Impact of climate change on meteorological, hydrological and agricultural droughts in the Lower Mekong River Basin: a case study of the Srepok Basin, Vietnam

2018 ◽  
Vol 33 (4) ◽  
pp. 547-559 ◽  
Author(s):  
Truong Thao Sam ◽  
Dao Nguyen Khoi ◽  
Nguyen Thi Thanh Thao ◽  
Pham Thi Thao Nhi ◽  
Nguyen Trong Quan ◽  
...  
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Mekong River ◽  
Mekong River Basin ◽  
Impact Of Climate Change

Modeling Daily Floods in the Lancang‐Mekong River Basin Using an Improved Hydrological‐Hydrodynamic Model

2021 ◽  
Author(s):  
Jie Wang ◽  
Xiaobo Yun ◽  
Yadu Pokhrel ◽  
Dai Yamazaki ◽  
Qiudong Zhao ◽  
...  
Keyword(s):  
River Basin ◽  
Hydrodynamic Model ◽  
Mekong River ◽  
Mekong River Basin
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