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Surface Temperature: Graphs

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Global annual-mean surface air temperature change derived from the meteorological station network [an update of Figure 5 in Hansen, Ruedy, Glascoe and Sato (1999)]. Uncertainty bars (95% confidence limits) shown for both the annual and 5-year means, account only for incomplete spatial sampling of data.

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Five-year running mean temperature change for three latitude bands that cover 30%, 40% and 30% of the global area. Uncertainty bars (95% confidence limits) are based on spatial sampling analysis.

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Monthly mean global surface temperature derived from meteorological stations alone and the monthly mean land-ocean temperature index, as described in Hansen, Ruedy, Glascoe and Sato (1999). The land-ocean temperature index uses sea surface temperatures obtained from satellite measurements of Reynolds and Smith (1994).

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Annual and five-year running mean surface air temperature in the contiguous 48 United States relative to the 1951-1980 mean.

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Temperature index change since 1950 at seasonal resolution, for the globe (above) and for low latitudes [an update of Figure 10 in Hansen, Ruedy, Glascoe and Sato (1999)]. Blue semicircles mark La Ninas, red rectangles mark El Ninos, and green triangles mark large volcanos.

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Last updated: 2000:01:20, jtg
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