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

doi:10.1126/science.1121571

Account Information

Guest Alerts | Access Rights | My Account | Sign In

Technical Comments

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

Hans von Storch¹^*, Eduardo Zorita¹, Julie M. Jones¹, Fidel Gonzalez-Rouco² and Simon F. B. Tett³

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.

Fig. 1. Northern Hemisphere temperature deviations from the 1900 to 1998 mean, simulated and pseudoreconstructed from a network of pseudoproxies and three implementations of the MBH98 reconstruction method (2): with detrended and nondetrended calibration using white-noise pseudoproxies with 75% noise variance; and, additionally, with nondetrended calibration and red-noise pseudoproxies with the same amount of total noise variance, constructed from a AR-1 process with 0.7 1-year autocorrelation. One hundred Monte Carlo realizations of the noise were used to estimate the median and the 5% to 95% range. Two climate models were used, ECHO-G (left) and HadCM3 (right). Scale on the right is half that on the left. [View Larger Version of this Image (26K GIF file)]