Extreme Precipitation Events in China's Zhujiang River Basin
Gemmer, M., Fischer, T., Jiang, T., Su, B. and Liu, L.L. 2011. Trends in precipitation extremes in the Zhujiang River Basin, South China. Journal of Climate 24: 750-761.
Upon concluding their analysis the five Chinese researchers report that "few stations experienced trends in the precipitation indices on an annual basis." More specifically, they write that "less than 9% of all stations in the Zhujiang River basin show significant trends in annual extreme precipitation events (maximum precipitation, rainstorm days, intensive rain days, extremely intensive rain days for 90/95/99 percentile rain events)," noting also that "no spatial pattern can be detected for the stations with significant trends."
In light of the fact that "Zhang et al. (2009) also say that no trends can be detected for annual precipitation in the Zhujiang River basin," Gemmer et al. write that "we can therefore conclude that no distinct regions in the Zhujiang River basin have experienced trends for annual indices." Thus, over the period 1961-2007, when climate alarmists claim the earth warmed at a rate and to a level that was unprecedented over the past millennium or more, the precipitation projections of the IPCC for this part of the world within the context of unprecedented global warming have still not come to pass.
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Zhang, Q., Xu, C.-Y., Becker, S., Zhang, Z.X., Chen, Y.D. and Coulibaly, M. 2009. Trends and abrupt changes of precipitation maxima in the Pearl River basin, China. Atmospheric Science Letters 10: 132-144.