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oai:docta.ucm.es:20.500.14352/449442024-09-02T16:51:58Zcom_20.500.14352_14col_20.500.14352_15

Smerdon, J. E. Kaplan, A. Zorita, E. González Rouco, Jesús Fidel Evans, M. N. 2023-06-20T04:07:41Z 2023-06-20T04:07:41Z 2011-06-15 0094-8276 10.1029/2011GL047372 https://hdl.handle.net/20.500.14352/44944 http://dx.doi.org/10.1029/2011GL047372 http://onlinelibrary.wiley.com/ The spatial skill of four climate field reconstruction (CFR) methods is investigated using pseudoproxy experiments (PPEs) based on two millennial-length general circulation model simulations. Results indicate that presently available global and hemispheric CFRs for the Common Era likely suffer from spatial uncertainties not previously characterized. No individual method produced CFRs with universally superior spatial error statistics, making it difficult to advocate for one method over another. Northern Hemisphere means are shown to be insufficient for evaluating spatial skill, indicating that the spatial performance of future CFRs should be rigorously tested for dependence on proxy type and location, target data and employed methodologies. Observed model-dependent methodological performance also indicates that CFR methods must be tested across multiple models and conclusions from PPEs should be carefully evaluated against the spatial statistics of real-world climatic fields. Citation: Smerdon, J. E., A. Kaplan, E. Zorita, J. F. Gonzalez-Rouco, and M. N. Evans (2011), Spatial performance of four climate field reconstruction methods targeting the Common Era, Geophys. Res. Lett., 38, L11705, doi: 10.1029/2011GL047372. eng open access Spatial performance of four climate field reconstruction methods targeting the Common Era journal article