File:GISTEMPvsHansen1988.png

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English: Comparison of GISTEMP temperature series to the projections of Hansen et al. 1988 (specifically, the upper part of figure 3). GISTEMP data downloaded from Wood for Trees on 23 Nov. 2012.

Notes

  • Did not alter any baselines. "Observed" data in Paper matches well to smoothed GISTEMP.
  • Sensitivity used in paper is 4.2 deg C/doubling. Current literature value is more like 3.0, leading to overestimates
  • Sc. A - trace gas emission continues to increase at the rates of the 70s and 80s. Also includes trends in minor trace gases such as fluorides and ozone not included in the other scenarios.
  • Sc. B - trace gas emission rate increases, but at a lower rate than in scenario A
  • Sc. C - trace gas emissions decrease until 2000, when the net climate forcing ceases to increase
Ref: Hansen, J., I. Fung, A. Lacis, D. Rind, Lebedeff, R. Ruedy, G. Russell, and P. Stone, 1988: Global climate changes as forecast by Goddard Institute for Space Studies three-dimensional model. J. Geophys. Res., 93, 9341-9364, doi:10.1029/JD093iD08p09341
Please note that the study is also released by NASA for free downloading: here
Date
Source Own work
Author Sailsbystars

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Date/TimeThumbnailDimensionsUserComment
current17:49, 23 November 2012Thumbnail for version as of 17:49, 23 November 2012812 × 612 (96 KB)Sailsbystarstighter axes to match those of the figure from Hansen 1988
17:42, 23 November 2012Thumbnail for version as of 17:42, 23 November 2012812 × 612 (76 KB)SailsbystarsUser created page with UploadWizard
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