Merge pull request #4013 from dopplershift/fix-cartopy

Bump Cartopy to 0.25

Author: dcamron

.github/actions/install-conda/action.yml

@@ -31,7 +31,7 @@ runs:
 
     - name: Install dependencies
       shell: bash -l {0}
-      run: micromamba install --yes --file ci-dev/${{ inputs.type }}_requirements.txt --file ci/extra_requirements.txt --file ci/requirements.txt
+      run: micromamba install --yes --file ci-dev/${{ inputs.type }}_requirements.txt --file ci/extra_requirements.txt --file ci/requirements.txt "proj<9.8.0"
 
     - name: Download Cartopy Maps
       if: ${{ inputs.need-cartopy == 'true' }}

ci/extra_requirements.txt

@@ -1,4 +1,4 @@
-cartopy==0.24.0
+cartopy==0.25.0
 dask==2026.1.2
 netCDF4==1.7.4
 shapely==2.1.2

tests/plots/baseline/test_declarative_events.png

@@ -475,7 +475,8 @@ def test_declarative_contour_convert_units():
 
 
 @pytest.mark.mpl_image_compare(remove_text=True,
-                               tolerance=5.34 if version_check('matplotlib<3.10') else 0.246)
+                               tolerance=7.85 if (version_check('matplotlib<3.10') or
+                                   version_check('cartopy<0.25')) else 0.246)
 @needs_cartopy
 def test_declarative_events():
     """Test that resetting traitlets properly propagates."""
@@ -827,7 +828,8 @@ def test_global():
 
 
 @pytest.mark.mpl_image_compare(remove_text=True,
-                               tolerance=5.101 if version_check('matplotlib<3.10') else 0.044)
+                               tolerance=7.891 if (version_check('matplotlib<3.10') or
+                                   version_check('cartopy<0.25')) else 0.019)
 @needs_cartopy
 def test_latlon():
     """Test our handling of lat/lon information."""
@@ -1784,6 +1786,8 @@ def test_declarative_title_fontsize():
     return pc.figure
 
 
+# Broken on Cartopy 0.25 due to 0-area filled contour. See SciTools/cartopy#2635
+@pytest.mark.xfail(version_check('cartopy==0.25.0'), reason='SciTools/cartopy#2635')
 @pytest.mark.mpl_image_compare(remove_text=False,
                                tolerance=0.951 if version_check('cartopy<0.23') else 0.)
 @needs_cartopy