The crop calendar input files have their latitudes and longitudes "tweaked" by a millionth of a degree to avoid inconsistencies in nearest-neighbor interpolation based on processor count. This bug in ESMF should be fixed in the version used by CESM3 eventually, which will allow us to revert those files to their actual coordinates.
The files:
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<stream_fldFileName_swindow_start cropcals_rx=".true.">lnd/clm2/cropdata/calendars/processed/swindow_starts_ggcmi_crop_calendar_phase3_v1.01.2000-2000.20231005_145103.tweaked_latlons.nc</stream_fldFileName_swindow_start> |
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<stream_fldFileName_swindow_end cropcals_rx=".true.">lnd/clm2/cropdata/calendars/processed/swindow_ends_ggcmi_crop_calendar_phase3_v1.01.2000-2000.20231005_145103.tweaked_latlons.nc</stream_fldFileName_swindow_end> |
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<stream_fldfilename_cultivar_gdds cropcals_rx=".true.">lnd/clm2/cropdata/calendars/processed/gdds_20230829_161011.tweaked_latlons.nc</stream_fldfilename_cultivar_gdds> |
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<stream_meshfile_cropcal cropcals_rx=".true.">lnd/clm2/cropdata/calendars/processed/360x720_120830_ESMFmesh_c20210507_cdf5.tweaked_latlons.nc</stream_meshfile_cropcal> |
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<stream_fldFileName_swindow_start cropcals_rx_adapt=".true.">lnd/clm2/cropdata/calendars/processed/swindow_starts_ggcmi_crop_calendar_phase3_v1.01.2000-2000.20231005_145103.tweaked_latlons.nc</stream_fldFileName_swindow_start> |
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<stream_fldFileName_swindow_end cropcals_rx_adapt=".true.">lnd/clm2/cropdata/calendars/processed/swindow_ends_ggcmi_crop_calendar_phase3_v1.01.2000-2000.20231005_145103.tweaked_latlons.nc</stream_fldFileName_swindow_end> |
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<stream_fldfilename_cultivar_gdds cropcals_rx_adapt=".true.">lnd/clm2/cropdata/calendars/processed/gdds_20230829_161011.tweaked_latlons.nc</stream_fldfilename_cultivar_gdds> |
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<stream_fldFileName_gdd20_baseline cropcals_rx_adapt=".true." stream_gdd20_seasons=".false.">lnd/clm2/cropdata/calendars/processed/20230714_cropcals_pr2_1deg.actually2deg.1980-2009.from_GDDB20.interpd_halfdeg.tweaked_latlons.nc</stream_fldFileName_gdd20_baseline> |
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<stream_fldFileName_gdd20_baseline cropcals_rx_adapt=".true." stream_gdd20_seasons=".true.">lnd/clm2/cropdata/calendars/processed/gdd20bl.copied_from.gdds_20230829_161011.v2.tweaked_latlons.nc</stream_fldFileName_gdd20_baseline> |
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<stream_fldFileName_gdd20_season_start stream_gdd20_seasons=".true.">lnd/clm2/cropdata/calendars/processed/sdates_ggcmi_crop_calendar_phase3_v1.01_nninterp-hcru_hcru_mt13.2000-2000.20230728_165845.tweaked_latlons.nc</stream_fldFileName_gdd20_season_start> |
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<stream_fldFileName_gdd20_season_end stream_gdd20_seasons=".true.">lnd/clm2/cropdata/calendars/processed/hdates_ggcmi_crop_calendar_phase3_v1.01_nninterp-hcru_hcru_mt13.2000-2000.20230728_165845.tweaked_latlons.nc</stream_fldFileName_gdd20_season_end> |
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<stream_meshfile_cropcal cropcals_rx_adapt=".true.">lnd/clm2/cropdata/calendars/processed/360x720_120830_ESMFmesh_c20210507_cdf5.tweaked_latlons.nc</stream_meshfile_cropcal> |
This will also allow us to remove the tools/contrib/tweak_latlons.py script.
