Research Trends of Hydrological Drought: A Systematic Review

The frequency and severity of global drought-induced impacts have led to raising awareness of the need for improved river management. Although academic publications on drought have proliferated, a systematic review of literature has not yet been conducted to identify trends, themes, key topics, and...

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Bibliographic Details
Published in:Water (Basel) 2019-11, Vol.11 (11), p.2252
Main Authors: Hasan, Hasrul Hazman, Mohd Razali, Siti Fatin, Muhammad, Nur Shazwani, Ahmad, Asmadi
Format: Article
Language:English
Subjects:
Climate change
Documents
Drought
Groundwater
Hydrology
Keywords
Literature reviews
Low flow
Scientific papers
Stream flow
Surface water
Systematic review
Time series
Trends
Water shortages
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Summary:The frequency and severity of global drought-induced impacts have led to raising awareness of the need for improved river management. Although academic publications on drought have proliferated, a systematic review of literature has not yet been conducted to identify trends, themes, key topics, and authorships. This study aims to evaluate the scientific evidence for the hydrological drought characteristics and the methodologies by performing as a framework. This systematic review performed three-stage screening of literature review for current applicable hydrological drought studies that have been conducted since the year of 2000 concerning methodologies, literature research gaps, and trends, and contribute to future studies. The analysis shows the increasing trends of research and publications in the hydrological drought assessment. The primary research themes are hydrological drought is drought severity, drought vulnerability, and drought forecast. Despite the current research findings, spatial and temporal variability, low flow analysis and regional modelling are the most important to encourage a holistic approach and international collaborations. The finding identified the shortcomings of most research, which are the use of non-standardized methodological and distinct sample sizes, resulting in data summary challenges and unrealistic comparisons.
ISSN:2073-4441
2073-4441
DOI:10.3390/w11112252