Theoretical and Applied Climatology

, Volume 118, Issue 3, pp 367–375 | Cite as

Evolution of meteorological drought characteristics in Vietnam during the 1961–2007 period

Original Paper


The drought conditions over the seven sub-climatological regions in Vietnam are examined using three meteorological drought indices: de Martonne J, PED, and Standardized Precipitation Index (SPI). According to the seasonal probabilities of drought occurrence estimated by the de Martonne index, droughts mainly occur between November and March in all the sub-regions. The PED index and the SPI index generally show high probabilities of drought occurrence from April to August and from May to October, respectively. In the southern sub-regions of Vietnam, droughts more frequently occur in El Niño years and wet conditions are more frequently observed in La Niña years. However, such El Niño–Southern Oscillation influences are not clearly observed in the northern sub-regions. During 1961–2007, droughts significantly increased in the northern part of Vietnam. In the southern regions, PED shows increasing drought conditions while J and SPI show decreasing drought trends for almost all the stations.


Tropical Cyclone Drought Condition Standardize Precipitation Index Occurrence Probability Drought Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was supported by the Vietnam Ministry of Science and Technology Foundation (DT.NCCB-DHUD.2011-G/10), the 11-P04-VIE DANIDA project, and the Vietnam National Foundation for Science and Technology Development (NAFOSTED, code 105.06-2013.03).


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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  1. 1.Department of Meteorology, Hanoi College of ScienceVietnam National UniversityHanoiVietnam

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