Authors

Mai Kim Lien 1* , Tran Duy Hien 2

Affiliations

1 Department of Climate Change, MONRE

2 Science and Technology, MONRE

*Corresponding author: lien_va21@yahoo.com 

Abstracts

This article presents the results of detecting the trend of drought conditions in the South-Central region based on the past observation and bias-correction rainfall projections. The past observation of daily rainfall is updated up to 2017 and collected from Vietnam Meteorological and Hydrological Administration. The bias-correction daily rainfall projections are collected from Vietnam Institute of Meteorology, Hydrology and Climate change (IMHEN) during the periods of 1986 - 2005, 2016 - 2035, 2036 - 2065 and 2080 - 2099 according to both RCP4.5 and RCP8.5 scenarios. The Standardized Precipitation Index (SPI) and minimum value of SPI (SPI_min) are used to define the mean drought condition and the most extreme drought condition. The past trend of drought conditions is found that the decreasing trends of mean drought condition and increasing trends of the severity level. The future trend of drought conditions according to both RCP4.5 and RCP8.5 is found that it is similar to the past trend. Where, the mean drought condition is generally found by slight decreasing trends. However, the most extreme of drought condition is significantly found by increasing trends of drought at shorter timescales (1- and 3-month time scales).

Keywords

Drought condition , extreme drought , SPI , SPI_min , South-Central region

Cite this paper

Mai Kim Lien, Tran Duy Hien (2018), A Study on Drought in the South-Central Region: Detection from the Observation and the Bias-Correction Rainfall Projections of National Climate Change Scenarios. Vietnam Journal of Hydrometeorology, 01, 20-29.

References

1. Jang, D.W., 2018. Assessment of Meteorological Drought Indices in Korea Using RCP 8.5 Scenario, Water 2018. 10: 283, doi:10.3390/w10030283, MDPI.

2. DWR. Ministry of Agriculture and Rural Development (MARD): http://www.vncold.vn/Web/Content.aspx?distid=4061. 

3. Edwards, D.C. and McKee, T.B., 1997. Characteristics of 20th century drought in the United States at multiple time scales. Climatology Report. 97(2). Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado.

4. IMHEN, 2016. Climate change and sea level rise scenarios for Vietnam, MONRE project.

5. IPCC, 2007. Climate Change 2007: The Scientific Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge. United Kingdom and New York, NY, USA.

6. IPCC, 2013. Climate Change 2013: The Physical Science Basis, Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp 1535, doi:10.1017/CBO97811074153. 

7. James, H. Stagge, L.M., Tallaksen, L.G., Anne, F.V.L., Kerstin, S., 2015. Candidate Distributions for Climatological Drought Indices (SPI and SPEI). International Journal of Climatology, 35 (13): 4027 - 4040, https://doi.org/10.1002/joc.4267.

8. Liu, L., Hong, Y., Looper, J., Riley, R., 2013. Climatological Drought Analyses and Projection Using SPI and PDSI: Case Study of the Arkansas Red River Basin. Journal of Hydrologic Engineering. 18 (7).

9. Osuch, M.M, Romanowicz, R.J., Lawrence, D. and Wong, W.K., 2016. Trends in projections of standardized precipitation indices in a future climate in Poland. Hydrol, Earth Syst. Sci., 20: 1947-1969, doi:10.5194/hess-20-1947- 2016.

10. Mau, N.D, Thang, N.V and Khiem, M.V., 2016. Changes in rainfall during the summer monsoon over Vietnam projected by PRECIS model. VNU Journal of Science. 3S (2016): 153- 166.

11. McKee, T.B., Doesken N.J. and Kleist, J., 1993. The relationship of drought frequency and duration to timescale, In: Proceedings of the Eighth Conference on Applied Climatology. Anaheim, California, 17-22 January 1993. Boston, American Meteorological Society, 179 - 184.

12. MONRE, 2009. Climate change, sea level rise scenarios for Vietnam, NARENCA.

13. MONRE, 2012. Climate change, sea level rise scenarios for Vietnam. NARENCA, 2012.

14. MONRE, 2016. Climate change, sea level rise scenarios for Vietnam. NARENCA, 2016.

15. Ngu, N.D and Hieu, N.T., 2004. Climate and Climate resources in Vietnam. Agriculture House.

16. Thang, N.V et al., 2017. Changes in climate extreme in Vietnam. Vietnam Science and Technology (VISTECH). 1 (1): 79-87.

17. Thang, N.V et al., 2007. Research and develop a technology for drought prediction and early warning in Viet Nam, MONRE project, 2007.

18. Thang, N.V et al., 2014. Definition of the criteria of drought condition for the South-Central region. Scientific and Technical Hydro-Meteorological Journal. 639: 49-55.

19. Thang, N.V et al., 2015. Study on drought forecast and warning system in Viet Nam for 3- month range, Code: KC.08.17/11-15.

20. Tri, T.D, et al., 2014. Projections of drought condition for South-Central region by using the PRECIS model. Scientific and Technical Hydro-Meteorological Journal. 644: 5-8.

21. Tri, T.D. et al., 2015. Trend of the drought condition in the South-Central region during 1961 - 2010. Journal of Natural resources and Environment. 217:18-20.

22. WMO, 2012. Standardized Precipitation Index User Guide, WMO-No. 1090, Geneva 2, Switzerland.