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**1. Can a new metric/method/module/functionality be added to the ESS Verification Suite?**
**Q1. Can a new metric/method/module/functionality be added to the ESS Verification Suite?**
To request a new feature, please [open an issue](https://earth.bsc.es/gitlab/es/auto-s2s/-/issues) in the Auto-S2S repository describing what you need and adding any information you think could be of use. The dev team will assess its viability and priority status and work to implement it whenever possible.
**2. How can I interpolate my data to a personalized grid?**
**Q2. How can I interpolate my data to a personalized grid?**
To interpolate both your hindcast/forecast and your observations to a third grid, you need to change the ‘regrid’ parameter in the Auto-S2S recipe to an accepted grid description. The tool uses CDO to regrid your data when loading it, and it accepts the following formats as regridding input:
1. A predefined grid name in a format that CDO accepts. E.g. ‘r360x180’ or ‘t106grid’. More information on predefined grid names in the [CDO User's Guide](https://code.mpimet.mpg.de/projects/cdo/embedded/cdo.pdf), in the “Predefined grids” section.
2. The path to a netCDF file that has the grid you want to use. Make sure that the netCDF only contains one grid, to ensure that CDO is actually reading the information you want to use. More information in the [CDO User's Guide](https://code.mpimet.mpg.de/projects/cdo/embedded/cdo.pdf), in the “Grids from data files” section.
3. The path to a grid description file, which is a simple ASCII file containing keywords and parameters that describe the grid in a format that CDO understands. You can find more information in the [CDO User's Guide](https://code.mpimet.mpg.de/projects/cdo/embedded/cdo.pdf) section “CDO grids”, and **examples are available in the Auto-S2S repository** under `conf/grid_description/`.
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3. The path to a grid description file, which is a simple ASCII file containing keywords and parameters that describe the grid in a format that CDO understands. You can find more information in the [CDO User's Guide](https://code.mpimet.mpg.de/projects/cdo/embedded/cdo.pdf) section “CDO grids”, and **examples are available in the Auto-S2S repository** under `conf/grid_description/`.
**Q3. "Latitude/Longitude mismatch between hcst and obs." Why am I getting this error?**
This error appears when a regrid type other than 'none' has been requested in the recipe, but the hindcast and observation grids do not match.
Sometimes, this happens when the description of the grid you have requested does not contain enough information to ensure that both grids will be exactly the same (See #42 for an example and a deeper discussion). In this case, we recommend providing a more complete grid description file or the path to a netCDF file with the exact grid you want (As explained in Q2).
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