GISS Surface Temperature Analysis
Analysis Graphs and Plots
This page is updated each month by an automatic procedure. Additional figures based on the GISTEMP analysis which require manual effort to create are available from Columbia University webpages maintained by Dr. Makiko Sato; see page 1 and page 2.
Click on any graph to view an enlargement of the image. PDF documents require a special viewer such as the free Adobe Reader.
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. 9a in Hansen et al. (2010).]
Figure also available as PDF, or Postscript. Also available are tabular data.
Our traditional analysis using only meteorological station data is a line plot of global annual-mean surface air temperature change, with the base period 1951-1980, derived from the meteorological station network [This is an update of Plate 6(b) in Hansen et al. (2001).] Uncertainty bars (95% confidence limits) are shown for both the annual and five-year means, account only for incomplete spatial sampling of data.
Figure also available as PDF, or Postscript. Also available are tabular data.
Annual Land and Ocean Mean Temperature Change
See page 2.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 are tabular data.
Annual Mean Temperature Change for Hemispheres
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 are tabular data.
Global Monthly Mean Surface Temperature Change
Line plot of monthly mean global surface temperature anomaly, with the base period 1951-1980. The black line shows meterological stations only; red circles are the land-ocean temperature index, as described in Hansen et al. (2010). The land-ocean temperature index uses sea surface temperatures from ERSST v3b Smith et al. (2008). [This is an update of Figure 8 in Hansen et al. (1999).]
Figure also available as PDF, or Postscript. Also available are tabular data.
Annual Mean Temperature Change in the United States
Annual and five-year running mean surface air temperature in the contiguous 48 United States (1.6% of the Earth's surface) relative to the 1951-1980 mean. [This is an update of Plate 6(a) in Hansen et al. (2001). The corresponding graph in Hansen et al. (1999) shows a smaller trend, since it is based on data that were not yet corrected for station moves and time-of-observation changes, see FAQ.]
Also available as PDF, or Postscript. Also available are tabular data.
Seasonal Mean Temperature Change
Temperature index change (with the base period 1951-1980) since 1950 at seasonal resolution, for the globe (upper line) and for low latitudes (lower line). [This is an update of Figure 7 in Hansen et al. (1999).] Green triangles mark large volcanic eruptions. SST at Nino 3.4 is the 12-month running mean.
Also available as PDF, or Postscript. Also available are tabular data.
More Figures on some Columbia University webpages
"Global Temperature" page 1 and page 2.
