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A framework for benchmarking of homogenisation algorithm performance on the global scale. Geoscientific Instrumentation, Methods and Data Systems

  • Identification data

    Identifier: imarina:5128363
    Handle: http://hdl.handle.net/20.500.11797/imarina5128363
  • Authors:

    Willett K.
    Williams C.
    Jolliffe I.T.
    Lund R.
    Alexander L.V.
    Brönnimann S.
    Vincent L.A.
    Easterbrook S.
    Venema V.K.C.
    Berry D.
    Warren R.E.
    Lopardo G.
    Auchmann R.
    Aguilar E.
    Menne M.J.
    Gallagher C.
    Hausfather Z.
    Thorarinsdottir T.
    Thorne P.
  • Others:

    Author, as appears in the article.: Willett K.; Williams C.; Jolliffe I.T.; Lund R.; Alexander L.V.; Brönnimann S.; Vincent L.A.; Easterbrook S.; Venema V.K.C.; Berry D.; Warren R.E.; Lopardo G.; Auchmann R.; Aguilar E.; Menne M.J.; Gallagher C.; Hausfather Z.; Thorarinsdottir T.; Thorne P.
    Department: Geografia
    URV's Author/s: Aguilar Anfrons, Enrique Modesto
    Abstract: The International Surface Temperature Initiative (ISTI) is striving towards substantively improving our ability to robustly understand historical land surface air temperature change at all scales. A key recently completed first step has been collating all available records into a comprehensive open access, traceable and version-controlled databank. The crucial next step is to maximise the value of the collated data through a robust international framework of benchmarking and assessment for product intercomparison and uncertainty estimation. We focus on uncertainties arising from the presence of inhomogeneities in monthly mean land surface temperature data and the varied methodological choices made by various groups in building homogeneous temperature products. The central facet of the benchmarking process is the creation of global-scale synthetic analogues to the real-world database where both the 'true' series and inhomogeneities are known (a luxury the real-world data do not afford us). Hence, algorithmic strengths and weaknesses can be meaningfully quantified and conditional inferences made about the real-world climate system. Here we discuss the necessary framework for developing an international homogenisation benchmarking system on the global scale for monthly mean temperatures. The value of this framework is critically dependent upon the number of groups taking part and so we strongly advocate involvement in the benchmarking exercise from as many data analyst groups as possible to make the best use of this substantial effort.
    Research group: Centre en Canvi Climàtic (C3)
    Thematic Areas: Oceanography Meteorology & atmospheric sciences Geosciences, multidisciplinary Geology Atmospheric science
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: enric.aguilar@urv.cat
    Author identifier: 0000-0002-8384-377X
    Record's date: 2023-02-22
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://gi.copernicus.org/articles/3/187/2014/
    Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Geoscientific Instrumentation Methods And Data Systems. 3 (3): 187-200
    APA: Willett K.; Williams C.; Jolliffe I.T.; Lund R.; Alexander L.V.; Brönnimann S.; Vincent L.A.; Easterbrook S.; Venema V.K.C.; Berry D.; Warren R.E.; Lo (2014). A framework for benchmarking of homogenisation algorithm performance on the global scale. Geoscientific Instrumentation, Methods and Data Systems. Geoscientific Instrumentation Methods And Data Systems, 3(3), 187-200. DOI: 10.5194/gi-3-187-2014
    Article's DOI: 10.5194/gi31872014
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2014
    Publication Type: Journal Publications
  • Keywords:

    Atmospheric Science,Geology,Geosciences, Multidisciplinary,Meteorology & Atmospheric Sciences,Oceanography
    Oceanography
    Meteorology & atmospheric sciences
    Geosciences, multidisciplinary
    Geology
    Atmospheric science
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