Fix write support for regular Gaussian grids. Fixes #330

ecmwf · Feb 23, 2023 · 66fba83 · 66fba83
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diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -2,6 +2,14 @@
 Changelog for cfgrib
 ====================
 
+0.9.10.4 (unreleased)
+---------------------
+
+- fix issue where xarrays derived from Gaussian grids did not have the correct
+  geometry when written back out as GRIB
+  See `#330 <https://github.com/ecmwf/cfgrib/issues/330>`_.
+
+
 0.9.10.3 (2022-11-24)
 ---------------------
 

diff --git a/cfgrib/dataset.py b/cfgrib/dataset.py
@@ -100,13 +100,17 @@
         "latitudeOfLastGridPointInDegrees",
     ],
     "regular_gg": [
-        "Nx",
+        "N",
+        "Ni",
+        "Nj",
         "iDirectionIncrementInDegrees",
         "iScansNegatively",
+        "jScansPositively",
+        "jPointsAreConsecutive",
         "longitudeOfFirstGridPointInDegrees",
         "longitudeOfLastGridPointInDegrees",
-        "N",
-        "Ny",
+        "latitudeOfFirstGridPointInDegrees",
+        "latitudeOfLastGridPointInDegrees",
     ],
     "rotated_gg": [
         "Nx",