Solar forcing of Earth's surface temperature in <scp>PMIP3</scp> simulations of the last millennium

  • Thanh Le
    Department of Earth and Ecosystem Sciences, Division of Geology, Quaternary Sciences Lund University Sweden

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<jats:title>Abstract</jats:title><jats:p>This study quantitatively diagnose the linkage between Total Solar Irradiance (<jats:styled-content style="fixed-case">TSI</jats:styled-content>) and Earth's near‐surface air temperature (<jats:styled-content style="fixed-case">TAS</jats:styled-content>) of past 1000‐year as simulated by Paleoclimate Modeling Intercomparison Project 3 (<jats:styled-content style="fixed-case">PMIP3</jats:styled-content>) models. The results demonstrate that there is causal feedback of <jats:styled-content style="fixed-case">TAS</jats:styled-content> from <jats:styled-content style="fixed-case">TSI</jats:styled-content> variations, especially in the tropical and subtropical regions. The consistency between models in simulating solar signal in <jats:styled-content style="fixed-case">TAS</jats:styled-content> responses is significant in these regions with more than 70% selected models showing agreement. There is no agreement between models in simulating <jats:styled-content style="fixed-case">TSI‐TAS</jats:styled-content> relationship in mid and high latitude regions.</jats:p>

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