Regional and seasonal mean streamflow trends. Climatological mean streamflow (a, b) and trends for the period 1960–2016 (c, d), derived from gauge records located in central Chile (30–39°S). Regional statistics are based on stations located below (a, c) and above (b, d) 500 m a.s.l. Grey bars and red dots indicate absolute and relative trend values. Error bars indicate the trend interquartile range obtained within the stations of the corresponding region. DOI: https://doi.org/10.1525/elementa.328.f6