Fig. 4: CMIP6 projections of hydroclimate variations of the Hanjiang River in China, southwestern United States, and Central Chile. | npj Climate and Atmospheric Science

Fig. 4: CMIP6 projections of hydroclimate variations of the Hanjiang River in China, southwestern United States, and Central Chile.

From: Role of Pacific Ocean climate in regulating runoff in the source areas of water transfer projects on the Pacific Rim

Fig. 4

a Kernel density profiles of the runoff reconstruction, instrumental period, CMIP6 projections in the Hanjiang River. b Future runoff variations of the Hanjiang River Basin (HJRB), southwestern United States (SWUS) and Central Chile (CC) during the period of 2023–2100 under SSP2-4.5 and SSP5-8.5 scenarios. The vertical dashed lines represent the respective mean values. c The probabilities of at least one of the other two regions experiencing drought under the Hanjiang River drought conditions in the reconstruction, CESM-LME, and CMIP6 future scenarios. d Box-and-whisker plots of runoff changes in the Hanjiang River Basin, the southwestern United States, and Central Chile for the years involved in c. Here, the box of the box-and-whisker plot indicates the 25–75% range, the whisker line indicates the 10–90% range, and the middle line indicates the mean. The scatter and normal distribution curves are given in parallel. Here all runoff data are first-order differenced and the variation ranges are indicated using multiples relative to the standard deviation (SD). e The probabilities of low and medium ELI conditions under all El Niño occurrence in the reconstruction, CESM-LME, and CMIP6 future scenarios.

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