Technical Comments

Comment on "Reconstructing Past Climate from Noisy Data"

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Science  28 Apr 2006:
Vol. 312, Issue 5773, pp. 529
DOI: 10.1126/science.1120866


von Storch et al. (Reports, 22 October 2004, p. 679) criticized the ability of the “hockey stick” climate field reconstruction method to yield realistic estimates of past variation in Northern Hemisphere temperature. However, their conclusion was based on incorrect implementation of the reconstruction procedure. Calibration was performed using detrended data, thus artificially removing a large fraction of the physical response to radiative forcing.

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