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Reduced misclosure of global sea-level budget with updated Tongji-Grace2018 solution

Wang, Fengwei, Shen, Yunzhong, Chen, Qiujie, and Sun, Yu, 2021. Reduced misclosure of global sea-level budget with updated Tongji-Grace2018 solution. Scientific Reports, 11:17667, doi:10.1038/s41598-021-96880-w.

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@ARTICLE{2021NatSR..1117667W,
       author = {{Wang}, Fengwei and {Shen}, Yunzhong and {Chen}, Qiujie and {Sun}, Yu},
        title = "{Reduced misclosure of global sea-level budget with updated Tongji-Grace2018 solution}",
      journal = {Scientific Reports},
         year = 2021,
        month = sep,
       volume = {11},
          eid = {17667},
        pages = {17667},
     abstract = "{The global sea-level budget is studied using the Gravity Recovery and
        Climate Experiment (GRACE) solutions, Satellite Altimetry and
        Argo observations based on the updated budget equation. When the
        global ocean mass change is estimated with the updated Tongji-
        Grace2018 solution, the misclosure of the global sea-level
        budget can be reduced by 0.11-0.22 mm/year compared to four
        other recent solutions (i.e. CSR RL06, GFZ RL06, JPL RL06 and
        ITSG-Grace2018) over the period January 2005 to December 2016.
        When the same missing months as the GRACE solution are deleted
        from altimetry and Argo data, the misclosure will be reduced by
        0.06 mm/year. Once retained the GRACE C$_{20}$ term, the linear
        trends of Tongji-Grace2018 and ITSG-Grace2018 solutions are 2.60
        {\ensuremath{\pm}} 0.16 and 2.54 {\ensuremath{\pm}} 0.16
        mm/year, closer to 2.60 {\ensuremath{\pm}} 0.14 mm/year from
        Altimetry-Argo than the three RL06 official solutions.
        Therefore, the Tongji-Grace2018 solution can reduce the
        misclosure between altimetry, Argo and GRACE data, regardless of
        whether the C$_{20}$ term is replaced or not, since the low-
        degree spherical harmonic coefficients of the Tongji-Grace2018
        solution can capture more ocean signals, which are confirmed by
        the statistical results of the time series of global mean ocean
        mass change derived from five GRACE solutions with the spherical
        harmonic coefficients truncated to different degrees and orders.}",
          doi = {10.1038/s41598-021-96880-w},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2021NatSR..1117667W},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

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