Trends of Sampling Error in Surface Air Temperature on the Tibetan Plateau during Recent Decades

Figure 6

Running trend analysis for (a) annual and (b–e) seasonal mean sampling error variances of all grid boxes starting from 1979 to 1988 and ending in 2012, with at least a 10-year span required to calculate the trend. The x-axis and y-axis indicate the start year and the length of the time series used to calculate trend, respectively. The color of the rectangles represents the intensity of the trend and those with black dots represent mean trends above the 95% significance level: (a) annual; (b) spring; (c) summer; (d) autumn; (e) winter.

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