3/28/2023 0 Comments Gridded response pdf![]() However, the study of the hydrological regime over the whole MRB using a reliable model and related input is still lacking and needs to be fully addressed. investigated the flood characteristics in the Tonle Sap floodplain using an integrated hydrological-hydraulic model. applied the RRI model for a single flood event in the LMB. studied Tonle Sap sub-basin of MRB using the SWAT model. Hydrological modeling is an effective approach to extrapolate and interpolate missing information over time and space between observations for hydrological assessment. It is critically important to understand the characteristics of the hydrological regime in the MRB for sustainable development and flood management. On the other hand, flooding drives the high productivity of the ecosystem and biodiversity in the downstream floodplains. The flood in 2011 caused more than 430 million US$ and the death toll reached 396. The annual average cost of the flood damages in the Lower Mekong Basin (LMB) ranges between 60 and 70 million US$. One the one hand, prolonged floods challenge the survival and sustainability of the local community, causing huge socio-economic damages. via email: JRA-55 reanalysis dataset (evaporation, 2000-2007, ) MCD12Q1 (Land use, 2000, ).įunding: The author(s) received no specific funding for this work.Ĭompeting interests: The authors have declared that no competing interests exist.Īnnual flooding is an important hydrological characteristic of the Mekong River Basin (MRB), especially in the lower Mekong River in which flooding is a way of life. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All datasets used in this study were freely obtained from the following third parties: GPCC (precipitation, 2000-2007, ) GSMaP (precipitation, 2000-2007, ) TRMM (precipitation, 2000-2007, ) PERSIANN (precipitation, 2000-2007, ) APHRODITE (precipitation, 2000-2007, ) Mekong River Commission (observed precipitation and discharge, 2000-2007. ![]() Received: ApAccepted: DecemPublished: January 8, 2020Ĭopyright: © 2020 Try et al. Schumann, Bristol University/Remote Sensing Solutions Inc., UNITED STATES (2020) Comparison of gridded precipitation datasets for rainfall-runoff and inundation modeling in the Mekong River Basin. This study provides useful guidance for the application of gridded precipitation in hydrological modeling in the Mekong River basin.Ĭitation: Try S, Tanaka S, Tanaka K, Sayama T, Oeurng C, Uk S, et al. Thus, APHRODITE, TRMM, and GPCC precipitation datasets were considered suitable for rainfall-runoff and flood inundation modeling in the Mekong River Basin. The statistical index of the annual maximum inundated area indicated similar conclusions. ![]() The results of the simulated river discharge indicated that TRMM, GPCC, and APHRODITE performed better than other datasets. In addition, five gridded precipitation datasets including APHRODITE, GPCC, PERSIANN-CDR, GSMaP (RNL), and TRMM (3B42V7) from 2000 to 2007 were applied as the input to the calibrated model. ![]() The calibration (2000–2003) and validation (2004–2007) results indicated that the RRI model had acceptable performance in the Mekong River Basin. Firstly, the performance of the Rainfall-Runoff-Inundation (RRI) model in this basin was evaluated using the gauged rainfall. ![]() Therefore, the main objective of this study is to assess the performances of various gridded precipitation datasets in rainfall-runoff and flood-inundation modeling of the whole basin. Accurate long-term gauged precipitation in the Mekong River Basin, however, is limited. The reliability of hydrological modeling is highly related to the quality of precipitation data. Precipitation, as a primary hydrological variable in the water cycle plays an important role in hydrological modeling. ![]()
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