Integrating precipitation zoning with random forest regression for the spatial downscaling of satellite‐based precipitation: A case study of the Lancang–Mekong River basin

2019 ◽  
Vol 39 (10) ◽  
pp. 3947-3961 ◽  
Author(s):  
Jing Zhang ◽  
Hui Fan ◽  
Daming He ◽  
Jiwei Chen
Keyword(s):  
Random Forest ◽  
River Basin ◽  
Mekong River ◽  
Random Forest Regression ◽  
Mekong River Basin ◽  
Spatial Downscaling

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>

scholarly journals Random Forest-Based Reconstruction and Application of the GRACE Terrestrial Water Storage Estimates for the Lancang-Mekong River Basin

2021 ◽  
Vol 13 (23) ◽  
pp. 4831
Author(s):  
Senlin Tang ◽  
Hong Wang ◽  
Yao Feng ◽  
Qinghua Liu ◽  
Tingting Wang ◽  
...  
Keyword(s):  
Time Series ◽  
Random Forest ◽  
Correlation Coefficient ◽  
River Basin ◽  
Water Storage ◽  
Mekong River ◽  
Climatic Research Unit ◽  
Terrestrial Water Storage ◽  
Mekong River Basin ◽  
Terrestrial Water

Terrestrial water storage (TWS) is a critical variable in the global hydrological cycle. The TWS estimates derived from the Gravity Recovery and Climate Experiment (GRACE) allow us to better understand water exchanges between the atmosphere, land surface, sea, and glaciers. However, missing historical (pre-2002) GRACE data limit their further application. In this study, we developed a random forest (RF) model to reconstruct the monthly terrestrial water storage anomaly (TWSA) time series using Global Land Data Assimilation System (GLDAS) and Climatic Research Unit (CRU) data for the Lancang-Mekong River basin. The results show that the RF-built TWSA time series agrees well with the GRACE TWSA time series for 2003–2014, showing that correlation coefficients (R) of 0.97 and 0.90 at the basin and grid scales, respectively, which demonstrates the reliability of the RF model. Furthermore, this method is used to reconstruct the historical TWSA time series for 1980–2002. Moreover, the discharge can be obtained by subtracting the evapotranspiration (ET) and RF-built terrestrial water storage change (TWSC) from the precipitation. The comparison between the discharge calculated from the water balance method and the observed discharge showed significant consistency, with a correlation coefficient of 0.89 for 2003–2014 but a slightly lower correlation coefficient (0.86) for 1980–2002. The methods and findings in this study can provide an effective means of reconstructing the TWSA and discharge time series in basins with sparse hydrological data.

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

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

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

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
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