针对AWI-CM/AWI-ESM非结构网格的插值

一大碗年糕

官方做法：https://fesom.de/cmip6/work-with-awi-cm-unstructured-data/

A convenient way to remap FESOM data to a regular (curvilinear) grid is to use the Climate Data Operators (CDO: code.mpimet.mpg.de/projects/cdo/), in particular the CDO operator ‚remaycon‘ for first-order conservative remapping. If you have CDO installed (widely available at high-performance computing centres with climate research users), you can download an AWI-ESM CMIP6 example file (either 2D* or 3D*) using one of the links provided below, and try the following command to remap the data to a global 1-degree lon-lat grid:

> cdo remapycon,global_1 <inputpath>/<inputfilename> <outputpath>/<outputfilename>

CDO allows you to specify a wide range of target grids. Furthermore, instead of a predefined target grid, another file can be specified to remap onto the grid contained in that file. Details can be found in the CDO documentation (see link above).

If you intend to remap a large number of FESOM files, it is advisable to split the operation into the generation of remapping weights with “genycon” and the remapping itself with “remap”:

> cdo genycon,global_1 <inputpath>/<inputfilename> <outputpath>/<weightsfilename>
> cdo remap,global_1,<outputpath>/<weightsfilename> <inputpath>/<inputfilename> <outputpath>/<outputfilename>