Land + Ocean Graphics

  • Annual Average Global Temperatures. Both panels are calculated using a 1951-80 periodand represent the average Global Temperature index in degrees C. At the poles where ice cover variesover the record we provide two cases. For the baseline case the air temperature over iceis used for the average and in the alternative case in the bottom panel Sea Temperature under the ice cover is used. -1.8 C is used for this value in all cases

  • Series Comparison. Anomalies of the global temperature index of provided by several groups is depicted for the 1980 to present time period. The base period is 1951-1980. The Berkeley baseline is depicted.

  • Comparison of the baseline method with the alternative method. At the poles where ice cover variesover the record we provide two cases. For the baseline case the air temperature over iceis used for the average and in the alternative case Sea Temperature under the ice cover is used. -1.8 C is used for this value in all cases. 1950-present is shown.

  • Comparison of the baseline method with the alternative method. At the poles where ice cover variesover the record we provide two cases. For the baseline case the air temperature over iceis used for the average and in the alternative case Sea Temperature under the ice cover is used. -1.8 C is used for this value in all cases

  • Difference between the baseline case anomalies and the alternative case anomalies.

  • Changes in Sea Ice cover. The changes in sea ice cover since 1960 is shown.The percentage change for grid cells is depicted.

  • Berkeley Interpolation. HadSST is the source material for estimating the Sea Surface Temperature.The top panel shows a sample month from the source data and the bottom panel shows theresults after interpolation.

  • Berkeley Earth Global Temperature index, 1850 to present

  • Temperature trends for the baseline case and the alternative case