Temperature

Current climate conditions trends and averages: Temperature section includes Global Mean Temperature (GMT) and hemispheric analysis and will be expanded to include other relevant products.

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TEMPERATURE

Land/Ocean and Hemisphere Global Trends

Global Annual Mean Surface Air Temperature Change

Line plot of global mean land-ocean temperature index, 1880 to present, with the base period 1951-1980. The dotted black line is the annual mean and the solid red line is the five-year mean. The green bars show uncertainty estimates. [This is an update of Fig. 1A in Hansen et al. (2006).]

Figure also available as PDF, or Postscript. Also available are tabular data.

Source: http://data.giss.nasa.gov/gistemp/graphs_v3/

Graph: http://data.giss.nasa.gov/gistemp/graphs_v3/Fig.A2.gif

Northern Hemisphere (NH), Southern (SH) Temperature Trends (GMT)

Annual and five-year running mean temperature changes with the base period 1951-1980 for the northern (red) and southern (blue) hemispheres.

Figure also available as PDF, or Postscript, Also available is a table.

Source: http://data.giss.nasa.gov/gistemp/graphs_v3/

Graph: http://data.giss.nasa.gov/gistemp/graphs_v3/Fig.A3.gif

Annual Mean Temperature Change for Three Latitude Bands

Annual and five-year running mean temperature changes, with the base period 1951-1980, 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. [This is an update of Figure 5 in Hansen et al. (1999).]

Figure also available as PDF, or Postscript, Also available is a table.

Source: http://data.giss.nasa.gov/gistemp/graphs_v3/

Graph: http://data.giss.nasa.gov/gistemp/graphs_v3/Fig.B.gif