User lighter Zarr not cfgrib in tests

bopen · Oct 15, 2023 · 2134ae5 · 2134ae5
1 parent dc989af
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diff --git a/README.md b/README.md
@@ -15,29 +15,29 @@ naming conventions you can:
 
 >>> import xarray as xr
 >>> import cf2cdm
->>> ds = xr.open_dataset('tests/sample-data/era5-levels-members.grib', engine='cfgrib')
+>>> ds = xr.open_dataset('tests/sample-data/era5-levels-members.zarr')
 >>> cf2cdm.translate_coords(ds, cf2cdm.ECMWF)
 <xarray.Dataset>
-Dimensions:     (time: 4, number: 10, level: 2, latitude: 61, longitude: 120)
+Dimensions:     (number: 10, time: 4, level: 2, latitude: 61, longitude: 120)
 Coordinates:
-  * time        (time) datetime64[ns] 2017-01-01 ... 2017-01-02T12:00:00
     step        timedelta64[ns] ...
+  * time        (time) datetime64[ns] 2017-01-01 ... 2017-01-02T12:00:00
     valid_time  (time) datetime64[ns] ...
   * latitude    (latitude) float64 90.0 87.0 84.0 81.0 ... -84.0 -87.0 -90.0
   * longitude   (longitude) float64 0.0 3.0 6.0 9.0 ... 348.0 351.0 354.0 357.0
   * level       (level) float64 850.0 500.0
   * number      (number) int64 0 1 2 3 4 5 6 7 8 9
 Data variables:
-    z           (number, time, level, latitude, longitude) float32 ...
     t           (number, time, level, latitude, longitude) float32 ...
+    z           (number, time, level, latitude, longitude) float32 ...
 Attributes:
-    GRIB_edition:            1
+    Conventions:             CF-1.7
     GRIB_centre:             ecmf
     GRIB_centreDescription:  European Centre for Medium-Range Weather Forecasts
+    GRIB_edition:            1
     GRIB_subCentre:          0
-    Conventions:             CF-1.7
-    institution:             European Centre for Medium-Range Weather Forecasts
     history:                 ...
+    institution:             European Centre for Medium-Range Weather Forecasts
 
 ```
 
@@ -48,27 +48,27 @@ To translate to the Common Data Model of the Climate Data Store use:
 >>> import cf2cdm
 >>> cf2cdm.translate_coords(ds, cf2cdm.CDS)
 <xarray.Dataset>
-Dimensions:                  (forecast_reference_time: 4, realization: 10,
+Dimensions:                  (realization: 10, forecast_reference_time: 4,
                               plev: 2, lat: 61, lon: 120)
 Coordinates:
-  * forecast_reference_time  (forecast_reference_time) datetime64[ns] 2017-01...
     leadtime                 timedelta64[ns] ...
+  * forecast_reference_time  (forecast_reference_time) datetime64[ns] 2017-01...
     time                     (forecast_reference_time) datetime64[ns] ...
   * lat                      (lat) float64 -90.0 -87.0 -84.0 ... 84.0 87.0 90.0
   * lon                      (lon) float64 0.0 3.0 6.0 9.0 ... 351.0 354.0 357.0
   * plev                     (plev) float64 8.5e+04 5e+04
   * realization              (realization) int64 0 1 2 3 4 5 6 7 8 9
 Data variables:
-    z                        (realization, forecast_reference_time, plev, lat, lon) float32 ...
     t                        (realization, forecast_reference_time, plev, lat, lon) float32 ...
+    z                        (realization, forecast_reference_time, plev, lat, lon) float32 ...
 Attributes:
-    GRIB_edition:            1
+    Conventions:             CF-1.7
     GRIB_centre:             ecmf
     GRIB_centreDescription:  European Centre for Medium-Range Weather Forecasts
+    GRIB_edition:            1
     GRIB_subCentre:          0
-    Conventions:             CF-1.7
-    institution:             European Centre for Medium-Range Weather Forecasts
     history:                 ...
+    institution:             European Centre for Medium-Range Weather Forecasts
 
 ```
 

diff --git a/ci/environment-ci.yml b/ci/environment-ci.yml
@@ -15,4 +15,4 @@ dependencies:
 - pip:
   - sphinx-autoapi
 # DO NOT EDIT ABOVE THIS LINE, ADD DEPENDENCIES BELOW
-- cfgrib
+- zarr
diff --git a/tests/sample-data/era5-levels-members.grib b/tests/sample-data/era5-levels-members.grib
diff --git a/tests/sample-data/era5-levels-members.zarr/.zattrs b/tests/sample-data/era5-levels-members.zarr/.zattrs
@@ -0,0 +1,9 @@
+{
+    "Conventions": "CF-1.7",
+    "GRIB_centre": "ecmf",
+    "GRIB_centreDescription": "European Centre for Medium-Range Weather Forecasts",
+    "GRIB_edition": 1,
+    "GRIB_subCentre": 0,
+    "history": "2023-10-15T20:41 GRIB to CDM+CF via cfgrib-0.9.10.4/ecCodes-2.32.0 with {\"source\": \"tests/sample-data/era5-levels-members.grib\", \"filter_by_keys\": {}, \"encode_cf\": [\"parameter\", \"time\", \"geography\", \"vertical\"]}",
+    "institution": "European Centre for Medium-Range Weather Forecasts"
+}
diff --git a/tests/sample-data/era5-levels-members.zarr/.zgroup b/tests/sample-data/era5-levels-members.zarr/.zgroup
@@ -0,0 +1,3 @@
+{
+    "zarr_format": 2
+}