An analysis of drought conditions in Central Vietnam during 1961-2007
Main Article Content
Abstract
Abstract. Monthly rainfall data given by surface meteorological observations during the period 1961-2007 in Central Vietnam is used to calculate drought indices. Results show that drought conditions slightly increase in North Central Vietnam but decrease in South Central and Highland Central Vietnam. Significant drought periods often occur from January to March. The percentage of dry years during the period 1961-2007 is larger than that in the reference period of 1961-1990 in North Central while smaller in South Central and almost similar to that in Highland Central Vietnam.
Keywords: Drought, trend, Central Vietnam.References
[1] D.A. Wilhite, Drought as a natural hazard: concepts and definitions. Drought: a global assessment, London: Routledge Publishers, 2000.
[2] A.K. Mishra, V.R. Desai, Drought forecasting using stochastic models, Stoch. Environ. Res. Risk Assess 19 (2005) 326.
[3] World Meteorological Organization (WMO), Drought and agriculture, WMO/TN 138, Geneva: WMO, 1975.
[4] V. Yevjevich, L. da Cunha, E. Vlachos, Eds., Coping with droughts, Water Resources, 417 pp, 1983.
[5] W.C. Palmer, Meteorological drought, Research Paper 45, U.S. Department of Commerce, Weather Bureau, Washington D.C., 58pp,1965.
[6] E. Koleva, V. Alexandrov, Drought in the Bulgarian low regions during the 20th century, Theor. Appl. Climatol. 92 (2008) 113.
[7] M.P. Van Rooy, A rainfall anomaly index independent of time and space, Notos 14 (1965) 43.
[8] H.N. Bhalme, D.A. Mooley, Large scale droughts/floods and monsoon circulation, Mon. Wea. Rev. 108 (1980) 1197.
[9] R.W. Katz, M.H. Glantz, Anatomy of a rainfall index, Mon. Wea. Rev. 114 (1986) 764.
[10] W.C. Palmer, “The abnormally dry weather of 1961-1966 in the northeastern United State” in the Proc. Conf. Drought in North-eastern United State, Jerome Spar, Ed., New York University Geophys. Res. Lab. Rep. TR-68-3, 1967, p. 32.
[11] T.R. Karl, R.G. Quayle, The 1980 summer heat wave and drought in historical perspective, Mon. Wea. Rev. 109 (1981) 2055.
[12] K.R. Briffa, P.D. Jones, M. Hulme, Summer moisture availability across Europe, 1892-1991: an analysis based on the Palmer Drought Severity Index, Int. J. Climatol. 14 (1994) 475.
J.P. Palutikof, S. Subak, M.D. Agnew, Economic impacts of the hot summer and unusually warm year of 1995, Norwich, University of East Anglia, 1997.
[2] A.K. Mishra, V.R. Desai, Drought forecasting using stochastic models, Stoch. Environ. Res. Risk Assess 19 (2005) 326.
[3] World Meteorological Organization (WMO), Drought and agriculture, WMO/TN 138, Geneva: WMO, 1975.
[4] V. Yevjevich, L. da Cunha, E. Vlachos, Eds., Coping with droughts, Water Resources, 417 pp, 1983.
[5] W.C. Palmer, Meteorological drought, Research Paper 45, U.S. Department of Commerce, Weather Bureau, Washington D.C., 58pp,1965.
[6] E. Koleva, V. Alexandrov, Drought in the Bulgarian low regions during the 20th century, Theor. Appl. Climatol. 92 (2008) 113.
[7] M.P. Van Rooy, A rainfall anomaly index independent of time and space, Notos 14 (1965) 43.
[8] H.N. Bhalme, D.A. Mooley, Large scale droughts/floods and monsoon circulation, Mon. Wea. Rev. 108 (1980) 1197.
[9] R.W. Katz, M.H. Glantz, Anatomy of a rainfall index, Mon. Wea. Rev. 114 (1986) 764.
[10] W.C. Palmer, “The abnormally dry weather of 1961-1966 in the northeastern United State” in the Proc. Conf. Drought in North-eastern United State, Jerome Spar, Ed., New York University Geophys. Res. Lab. Rep. TR-68-3, 1967, p. 32.
[11] T.R. Karl, R.G. Quayle, The 1980 summer heat wave and drought in historical perspective, Mon. Wea. Rev. 109 (1981) 2055.
[12] K.R. Briffa, P.D. Jones, M. Hulme, Summer moisture availability across Europe, 1892-1991: an analysis based on the Palmer Drought Severity Index, Int. J. Climatol. 14 (1994) 475.
J.P. Palutikof, S. Subak, M.D. Agnew, Economic impacts of the hot summer and unusually warm year of 1995, Norwich, University of East Anglia, 1997.