Investigating drought over the Central Highland, Vietnam, using regional climate models

Vu, Minh Tue; Raghavan, Srivatsan V.; Pham, Duc Minh; Liong, Shie‐Yui

doi:10.1016/j.jhydrol.2014.11.006

Cited by 45 publications

(27 citation statements)

References 28 publications

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“…The detailed methodology to generate MMK trend test can be found in the study by Vu et al . (, 2016). The positive values of MK Z indicate increasing trends (upwards trend) while negative Z indicate decreasing trends (downwards trend).…”

Section: Study Region Data and Methodologymentioning

confidence: 99%

“…Using outputs from a regional climate model, Vu et al . () investigated drought (using SPI) over a region in the Central Highland of Vietnam and compared with gridded data sets. This study aims to investigate the uncertainties in using gridded precipitation data sets for monitoring drought and wetness over Vietnam.…”

Section: Introductionmentioning

confidence: 97%

“…Gridded observation data are used to characterize spatio‐temporal droughts and as well as for water resources management (Mishra and Singh, ; Vicente‐Serrano et al ., , ). Excessive drought and wetness affect natural habitats and ecosystems, economic and social sectors that include agriculture, transportation, urban water supply and other modern complex industries (Heim, ; Vu et al ., ). Regional drought leads to global impact on food supplies due to reduction in crop yields (Ciais et al ., ; Zhang and Zhou, ), undermines the economics and stability of governments (Sternberg, ) and regional wetness has severe implications on excessive flooding as well as flood risk management (Seiler et al ., ; Van Steenbergen and Willems, ).…”

Section: Introductionmentioning

confidence: 99%

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Uncertainties of gridded precipitation observations in characterizing spatio‐temporal drought and wetness over Vietnam

Raghavan

Liong

et al. 2017

Intl Journal of Climatology

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Precipitation is an important climate variable to investigate extreme events (e.g. drought and flood) as well as to develop robust strategies for water resources planning and management. Lack of adequate and robust information on precipitation poses great difficulties in understanding the observed climate as well as to validate climate model outputs. To overcome this limitation gridded precipitation data sets have been constructed to supplement the lack of in situ data. This study compares five popular gridded precipitation data sets to evaluate their performance in terms of drought and wetness over Vietnam. These five gridded data sets include: (1) Asian Precipitation Highly Resolved Observational Data Integration Towards the Evaluation of Water Resources (APHRODITE), (2) Climate Precipitation Center (CPC), (3) Climate Research Unit (CRU), (4) Global Precipitation Climatology Center (GPCC) and (5) University of Delaware (UDEL). The recently developed gridded precipitation observational data ‘VnGP’ from Vietnam is used as the reference data set to assess the performance of these five gridded precipitation products. The Standardized Precipitation Index (SPI) is used to quantify drought and wetness. GPCC and APHRODITE performed reasonably well in reproducing spatial and temporal precipitation patterns. GPCC performs consistently better than APHRODITE in all the statistical tests. Except for UDEL, other gridded data sets able to exhibit the characteristics of drought/wetness (e.g. the percentage of drought events and severity) during strong El Nino Southern Oscillation (ENSO) events. However, higher uncertainty exists to quantify drought inter‐arrival time in most of the data sets. Furthermore, trend analysis was performed to evaluate the comparative performance of gridded data sets to quantify drought (wet) spells at annual and seasonal time scales. Although the gauge‐based and hybrid satellite–gauge merged products use partly ground truth data, the different interpolation techniques and merging algorithms may contribute to large uncertainties.

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Section: Study Region Data and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Uncertainties of gridded precipitation observations in characterizing spatio‐temporal drought and wetness over Vietnam

Raghavan

Liong

et al. 2017

Intl Journal of Climatology

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“…More information can be found at the web link at: http://www.chikyu.ac.jp/precip/ and from Yatagai et al (2012). APH dataset has been used in many previous studies over this region in Raghavan et al (2014Raghavan et al ( , 2015, Vu et al (2012Vu et al ( , 2015.…”

Section: Datamentioning

confidence: 99%

“…They observed that drought frequently occurs during El Niño years and wetness conditions are associated with La Niña years in southern sub-regions of Vietnam. In another study, Vu et al (2015) investigated Vietnam's Central highland drought condition using Regional Climate Model outputs (RCM). Miyan (2015) concluded that Laos and Cambodia are under the monsoon climatic zone, which has been suffering from increasing droughts due to delayed and changing distribution patterns of precipitation.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variability of Standardized Precipitation Index over Indochina Peninsula

Mishra

2016

CIG

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Investigation of the probability of concurrent drought events between the water source and destination regions of China's water diversion project

Liu

Luo

Yang

et al. 2015

Geophys. Res. Lett.

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In this study, we investigate the concurrent drought probability between the water source and destination regions of the central route of China's South to North Water Diversion Project. We find that both regions have been drying from 1960 to 2013. The estimated return period of concurrent drought events in both regions is 11 years. However, since 1997, these regions have experienced 5 years of simultaneous drought. The projection results of global climate models show that the probability of concurrent drought events is highly likely to increase during 2020 to 2050. The increasing concurrent drought events will challenge the success of the water diversion project, which is a strategic attempt to resolve the water crisis of North China Plain. The data suggest great urgency in preparing adaptive measures to ensure the long‐term sustainable operation of the water diversion project.

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Investigating drought over the Central Highland, Vietnam, using regional climate models

Cited by 45 publications

References 28 publications

Uncertainties of gridded precipitation observations in characterizing spatio‐temporal drought and wetness over Vietnam

Uncertainties of gridded precipitation observations in characterizing spatio‐temporal drought and wetness over Vietnam

Spatial and temporal variability of Standardized Precipitation Index over Indochina Peninsula

Investigation of the probability of concurrent drought events between the water source and destination regions of China's water diversion project

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