Analysis of Meteorological Elements Variations of Chongqing over the Past 60 Years

Abstract:

The power of a test is the probability that it cannot reject a null hypothesis when it is true. With interchangeably of non-parametric Mann-Kendall test, practical application is used in meteorological elements analysis. In this study, trend detection of meteorological elements data of Shapingba district in Chongqing, during 1951 to 2011, was estimated by non-parametric Mann-Kendall test. The analyzed elements are composed by mean precipitation, annual sunshine hours, annual humidity, annual mean temperature and annual mean wind speed. And the results show that inter-annual variations of precipitation and mean annual relative humidity are not significant. However, inter-annual variation of sunshine duration is significantly reduced, while inter-annual temperature and wind speed are significantly increased. At the same time, the non-parametric Mann-Kendall test also detects the trend on seasonal data. It is different from the annual data, and trends in different seasons show markedly different.

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 2016-2019
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.2016
• Online since: January 2014
• Authors: Xun Jian Long*, Chun Min Zhang, Tao Hong Yang, Yu Lin Huang
• Keywords: Meteorological Elements, Non-Parametric Mann-Kendall Test, Trend

References

[1] M. Jerry, A. David, David W., et al.: NATURE Vol. 363 (1993), pp.234-240.

[2] IPCC: Climate Change 2001: Impacts, Adaptation & Vulnerability (Cambridge University Press, Cambridge 2001).

[3] R. Thomas, E. Kevin: Science Vol. 302 (2003), p.1719.

[4] G.S. Liu, G.X. Wang, H. C Hu Hong, et al.: ReSci. Vol. 32 (2010), p.1486 (In Chinese).

[5] Z.X. Xu, K. Takeuchi, H. Ishidaira: J. Hydrol. Vol. 279 (2003), p.144.

[6] Y. Sheng, C.Y. Wang: Water Resources Res. Vol. 38 (2002), p.1068 (In Chinese).

[7] Y. Xiao, S.H. Tang，H. Chen, et al.:J. Water Resources Res. Vol. 2 (2013), p.70 (In Chinese).

[8] O. Bihrat, B. Mehmetcik: J. Eng. Env. Sci. Vol. 27 (2003), p.247.

[9] S. Yue, P. Pilon, and G. Caradias: J. Hydrol. Vol. 259 (2002), p.254.

[10] H. Jian, Y.Z. Luo, and D.T. Xie: J. Southwest China Normal University (Natural Science Edition) Vol. 36 (2011), p.217 (In Chinese).

[11] K.W. Hipel, A.I. McLeod: Information on http: /www. stats. uwo. ca/faculty/aim.

[12] M. Brunetti, M. Maugeri, T. Nanni: Theor. Appl. Climatol. Vol. 65 (2000), p.165.