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Merge FEATURE_wkt into main #6537

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d1d77aa
Save crs_wkt on netCDF save, take 2 (#6519)
trexfeathers Jun 18, 2025
41cc939
Merge branch 'main' into FEATURE_wkt
trexfeathers Jun 27, 2025
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15 changes: 15 additions & 0 deletions docs/src/whatsnew/latest.rst
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Expand Up @@ -40,6 +40,18 @@ This document explains the changes made to Iris for this release
now preserved when it was not previously. See also: :ref:`load-problems`.
(:pull:`6465`, :pull:`6529`)

#. `@wjbenfold`_ and `@trexfeathers`_ added ``crs_wkt`` to the attributes when
saving a :class:`~iris.coord_systems.CoordSystem` to a NetCDF file. Note that
``crs_wkt`` is considered *supplementary* by the CF conventions, with
``grid_mapping`` being the primary source of information, and ``crs_wkt`` not
expected to contain conflicting information. Because of this, Iris generates
:class:`~iris.coord_systems.CoordSystem` exclusively from ``grid_mapping``
when loading, and writes a fresh ``crs_wkt`` whenever a
:class:`~iris.coord_systems.CoordSystem` is saved. If your use case goes
beyond the CF conventions, you can modify the save and load process for your
needs by using the `Ncdata`_ package.
See `CRS WKT in the CF Conventions`_ for more. (:issue:`3796`, :pull:`6519`)


🐛 Bugs Fixed
=============
Expand Down Expand Up @@ -132,3 +144,6 @@ This document explains the changes made to Iris for this release

.. comment
Whatsnew resources in alphabetical order:

.. _CRS WKT in the CF Conventions: https://cfconventions.org/Data/cf-conventions/cf-conventions-1.12/cf-conventions.html#use-of-the-crs-well-known-text-format
.. _Ncdata: https://github.com/pp-mo/ncdata
2 changes: 2 additions & 0 deletions lib/iris/fileformats/netcdf/saver.py
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Expand Up @@ -2081,6 +2081,8 @@ def add_ellipsoid(ellipsoid):
category=iris.warnings.IrisSaveWarning,
)

cf_var_grid.crs_wkt = cs.as_cartopy_crs().to_wkt()

self._coord_systems.append(cs)

# Refer to grid var
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1 change: 1 addition & 0 deletions lib/iris/tests/results/integration/netcdf/aux_factories/TestAtmosphereSigma/save.cdl
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Expand Up @@ -17,6 +17,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/integration/netcdf/aux_factories/TestHybridPressure/save.cdl
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Expand Up @@ -17,6 +17,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions ...egration/netcdf/aux_factories/TestSaveMultipleAuxFactories/hybrid_height_and_pressure.cdl
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Expand Up @@ -17,6 +17,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions ...iris/tests/results/integration/netcdf/general/TestPackedData/multi_packed_multi_dtype.cdl
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Expand Up @@ -17,6 +17,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:bounds = "time_bnds" ;
Expand Down
1 change: 1 addition & 0 deletions ...ris/tests/results/integration/netcdf/general/TestPackedData/multi_packed_single_dtype.cdl
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Expand Up @@ -17,6 +17,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:bounds = "time_bnds" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/integration/netcdf/general/TestPackedData/single_packed_manual.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
float latitude(latitude) ;
latitude:axis = "Y" ;
latitude:units = "degrees_north" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/integration/netcdf/general/TestPackedData/single_packed_signed.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
float latitude(latitude) ;
latitude:axis = "Y" ;
latitude:units = "degrees_north" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/integration/netcdf/general/TestPackedData/single_packed_unsigned.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
float latitude(latitude) ;
latitude:axis = "Y" ;
latitude:units = "degrees_north" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/aliases.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/flag.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/fulldims.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/multiple.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
Expand Down
1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/partialdims.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/TestNetCDFSave__ancillaries/shared.cdl
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Expand Up @@ -16,6 +16,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
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3 changes: 3 additions & 0 deletions lib/iris/tests/results/netcdf/netcdf_save_gridmapmulti.cdl
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Expand Up @@ -13,6 +13,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
int64 longitude(longitude) ;
longitude:axis = "X" ;
longitude:units = "degrees_east" ;
Expand All @@ -30,6 +31,7 @@ variables:
latitude_longitude_0:grid_mapping_name = "latitude_longitude_0" ;
latitude_longitude_0:longitude_of_prime_meridian = 0. ;
latitude_longitude_0:earth_radius = 6371228. ;
latitude_longitude_0:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371228,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
int64 longitude_0(longitude_0) ;
longitude_0:axis = "X" ;
longitude_0:units = "degrees_east" ;
Expand All @@ -48,6 +50,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 30. ;
rotated_latitude_longitude:grid_north_pole_longitude = 30. ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"World Geodetic System 1984\",ELLIPSOID[\"WGS 84\",6378137,298.257223563,LENGTHUNIT[\"metre\",1]],ID[\"EPSG\",6326]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",30,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",210,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
int64 grid_longitude(grid_longitude) ;
grid_longitude:axis = "X" ;
grid_longitude:units = "degrees" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/netcdf_save_hybrid_height.cdl
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Expand Up @@ -18,6 +18,7 @@ variables:
rotated_latitude_longitude:grid_north_pole_latitude = 37.5 ;
rotated_latitude_longitude:grid_north_pole_longitude = 177.5 ;
rotated_latitude_longitude:north_pole_grid_longitude = 0. ;
rotated_latitude_longitude:crs_wkt = "GEOGCRS[\"unnamed\",BASEGEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]]],DERIVINGCONVERSION[\"unknown\",METHOD[\"PROJ ob_tran o_proj=latlon\"],PARAMETER[\"o_lon_p\",0,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"o_lat_p\",37.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],PARAMETER[\"lon_0\",357.5,ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:units = "hours since 1970-01-01 00:00:00" ;
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1 change: 1 addition & 0 deletions lib/iris/tests/results/netcdf/netcdf_save_multi_0.cdl
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Expand Up @@ -15,6 +15,7 @@ variables:
latitude_longitude:grid_mapping_name = "latitude_longitude" ;
latitude_longitude:longitude_of_prime_meridian = 0. ;
latitude_longitude:earth_radius = 6371229. ;
latitude_longitude:crs_wkt = "GEOGCRS[\"unknown\",DATUM[\"unknown\",ELLIPSOID[\"unknown\",6371229,0,LENGTHUNIT[\"metre\",1,ID[\"EPSG\",9001]]]],PRIMEM[\"Greenwich\",0,ANGLEUNIT[\"degree\",0.0174532925199433],ID[\"EPSG\",8901]],CS[ellipsoidal,2],AXIS[\"longitude\",east,ORDER[1],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]],AXIS[\"latitude\",north,ORDER[2],ANGLEUNIT[\"degree\",0.0174532925199433,ID[\"EPSG\",9122]]]]" ;
double time(time) ;
time:axis = "T" ;
time:bounds = "time_bnds" ;
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