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Science 28 April 2006:
Vol. 312. no. 5773, p. 529
DOI: 10.1126/science.1121571
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Technical Comments

Response to Comment on "Reconstructing Past Climate from Noisy Data"

Hans von Storch,1* Eduardo Zorita,1 Julie M. Jones,1 Fidel Gonzalez-Rouco,2 Simon F. B. Tett3

We implemented a proxy-based method for reconstructing temperatures in the past millennium in simulations with two climate models using the pseudoproxy approach. We show results for detrended and nondetrended calibration using white-noise and red-noise pseudoproxies with realistic noise levels. In all cases, the method underestimates the low-frequency variability of the simulated Northern Hemisphere temperature.

1 Institute for Coastal Research, GKSS Research Centre, Geesthacht, Germany.
2 Department of Astrophysics and Atmospheric Physics, Universidad Complutense, Madrid 28040, Spain.
3 UK Meteorological Office, Hadley Centre (Reading Unit), Meteorology Building, University of Reading, Reading, RG6 6BB, UK.

* To whom correspondence should be addressed. E-mail: storch{at}gkss.de

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Science. ISSN 0036-8075 (print), 1095-9203 (online)