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    Land-atmosphere coupling in EURO-CORDEXevaluation experiments


    Knist, Sebastian and Klaus, Goergen and Buonomo, Erasmo and Christensen, Ole Bossing and Colette, Augustin and Cardoso, Rita M. and Fealy, Rowan and Fernández, Jesus and García-Díez, Markel and Jacob, Daniela and Kartsios, Stergios and Katragkou, Eleni and Keuler, Klaus and Mayer, Stephanie and Van Meijgaard, Erik and Nikulin, Grigory and Soares, Pedro M.M. and Sobolowski, Stefan and Szepszo, Gabriella and Teichmann, Claas and Vautard, Robert and Warrach-Sag, Kirsten and Wulfmeye, Volker and Simmer, Clemens (2017) Land-atmosphere coupling in EURO-CORDEXevaluation experiments. Journal of Geophysical Research, 122 (1). pp. 79-103.

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    Official URL: https://agupubs.onlinelibrary.wiley.com/toc/216989...


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    Abstract

    Interactions between the land surface and the atmosphere play a fundamental role in the weatherand climate system. Here we present a comparison of summertime land-atmosphere coupling strength foundin a subset of the ERA-Interim-driven European domain Coordinated Regional Climate Downscaling Experiment(EURO-CORDEX) model ensemble (1989–2008). Most of the regional climate models (RCMs) reproduce theoverall soil moisture interannual variability, spatial patterns, and annual cycles of surface exchangefluxes forthe different European climate zones suggested by the observational Global Land Evaporation AmsterdamModel (GLEAM) and FLUXNET data sets. However, some RCMs differ substantially from FLUXNET observationsfor some regions. The coupling strength is quantified by the correlation between the surface sensible andthe latent heatflux, and by the correlation between the latent heatflux and 2 m temperature. Thefirstcorrelation is compared to its estimate from the few available long-term European high-quality FLUXNETobservations, and the latter to results from gridded GLEAM data. The RCM simulations agree with bothobservational datasets in the large-scale pattern characterized by strong coupling in southern Europe and weakcoupling in northern Europe. However, in the transition zone from strong to weak coupling covering large partsof central Europe many of the RCMs tend to overestimate the coupling strength in comparison to bothFLUXNET and GLEAM. The RCM ensemble spread is caused primarily by the different land surface modelsapplied, and by the model-specific weather conditions resulting from different atmospheric parameterizations

    Item Type: Article
    Keywords: Land‐atmosphere coupling; EURO‐CORDEX;
    Academic Unit: Faculty of Social Sciences > Research Institutes > Irish Climate Analysis and Research Units, ICARUS
    Item ID: 10960
    Identification Number: https://doi.org/10.1002/2016JD025476
    Depositing User: Rowan Fealy
    Date Deposited: 24 Jul 2019 14:48
    Journal or Publication Title: Journal of Geophysical Research
    Publisher: AGU Publications
    Refereed: Yes
    URI:

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