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    Comments on “Erroneous Model Field Representations in Multiple Pseudoproxy Studies: Corrections and Implications”

    Source: Journal of Climate:;2013:;volume( 026 ):;issue: 010::page 3482
    Author:
    Rutherford, Scott D.
    ,
    Mann, Michael E.
    ,
    Wahl, Eugene
    ,
    Ammann, Caspar
    DOI: 10.1175/JCLI-D-12-00065.1
    Publisher: American Meteorological Society
    Abstract: merdon et al. report two errors in the climate model grid data used in previous pseudoproxy-based climate reconstruction experiments that do not impact the main conclusions of those works. The errors did not occur in subsequent works and therefore have no impact on the results presented therein. Results presented here for the Climate System Model (CSM) using multiple pseudoproxy noise realizations show that the quantitative differences between the incorrect and corrected results are within the expected variability of the noise realizations. It should also be made clear that the climate reconstruction method used in Smerdon et al. to illustrate the nature of the errors, the Regularized Expectation Maximization method with Ridge Regression (RegEM-Ridge), is known to produce climate reconstructions with considerable variance loss and has been superseded by RegEM-TTLS (TTLS indicates truncated total least squares).
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      Comments on “Erroneous Model Field Representations in Multiple Pseudoproxy Studies: Corrections and Implications”

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    contributor authorRutherford, Scott D.
    contributor authorMann, Michael E.
    contributor authorWahl, Eugene
    contributor authorAmmann, Caspar
    date accessioned2017-06-09T17:06:02Z
    date available2017-06-09T17:06:02Z
    date copyright2013/05/01
    date issued2013
    identifier issn0894-8755
    identifier otherams-79381.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4222154
    description abstractmerdon et al. report two errors in the climate model grid data used in previous pseudoproxy-based climate reconstruction experiments that do not impact the main conclusions of those works. The errors did not occur in subsequent works and therefore have no impact on the results presented therein. Results presented here for the Climate System Model (CSM) using multiple pseudoproxy noise realizations show that the quantitative differences between the incorrect and corrected results are within the expected variability of the noise realizations. It should also be made clear that the climate reconstruction method used in Smerdon et al. to illustrate the nature of the errors, the Regularized Expectation Maximization method with Ridge Regression (RegEM-Ridge), is known to produce climate reconstructions with considerable variance loss and has been superseded by RegEM-TTLS (TTLS indicates truncated total least squares).
    publisherAmerican Meteorological Society
    titleComments on “Erroneous Model Field Representations in Multiple Pseudoproxy Studies: Corrections and Implications”
    typeJournal Paper
    journal volume26
    journal issue10
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-12-00065.1
    journal fristpage3482
    journal lastpage3484
    treeJournal of Climate:;2013:;volume( 026 ):;issue: 010
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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