Attributing decadal climate variability in coastal sea-level trends



The data produced from analysis to be published in Ocean Science Discussions, paper entitled "Attributing decadal climate variability in coastal sea-level trends". NetCDF contains the following sets of fields:

1. Indexing: An <em>index</em> and location (<em>lat, lon</em>) of the coastal grid cells, a locator index attributing each cell to Atlantic, Pacific and Indian Ocean basin, a <em>time</em> (decimal year) index.

2. NEMO model trends (<em>nemo_&lt;component&gt;_trend</em>): Rolling decadal trends at each coastal grid cell from the NEMO model run for steric, manometric (dynamic) and GRD. The sum of these components gives the equivalent to absolute sea level trend. 

3. Climate and oceanographic mode indices: The rolling decadal trends in climate indices and the AMOC index calculated from the AMOC model (<em>ci_trend</em>) and their names (<em>ci_index</em>).

4. Empirical Orthogonal Function spatial pattern (<em>eof_&lt;basin&gt;_&lt;component&gt;_D</em>) and Principal Component time series (<em>eof_&lt;basin&gt;_&lt;component&gt;_PC</em>)<em> </em>of the NEMO model trends.

5. Coefficient of linear regression between PC and climate indices (<em>recon_&lt;basin&gt;_&lt;component&gt;_beta</em>) and the rolling trend time series at each grid cell from the reconstruction, sum{ci_trend*beta} (<em>recon_&lt;basin&gt;_&lt;component&gt;_trend</em>).

In 4 and 5, the indices are given by basin. The total coastline is a concatenation of the Atlantic, Pacific and Indian basin data in that order. The absolute SSH is given by the sum of components. i.e. the SSH for all coastal cells in order <em>index</em>:

recon_sum_trend([index(Atlantic_index); index(Pacific_index); index(Indian_index)] = ...

    [recon_Atlantic_manometric_trend+recon_Atlantic_steric_trend+recon_Atlantic_grd_trend; ...

     recon_Pacific_manometric_trend+recon_Pacific_steric_trend+recon_Pacific_grd_trend;  ...

Date made available14 Jan 2022

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