Merge Develop Into Main (#165)

* proj4 formatting update (#146)

* units=hPa is used in /def get_slp():/

* Update Mercator projection attributes (#163)

* Update Mercator projection attributes

* remove empty test_mercator file

* CI issues (#164)

* CI issues

* Add build env path for Linux.yml

* other updates to ci file

* format more closely to uxarray/comp

* Undo some changes, add python version

* Revert to previous version for 'Run tests'

* Update version in conda recipe

Co-authored-by: Piotr Kasprzyk <ciri@ciri.pl>

Author: michaelavs

.github/workflows/ci.yml

@@ -20,11 +20,11 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu-latest", "macos-latest"]
-        python-version: [ "3.6", "3.7", "3.8", "3.9" ]
+        python-version: [ "3.7", "3.8", "3.9", "3.10" ]
 
     steps:
       - name: Cancel previous runs
-        uses: styfle/cancel-workflow-action@0.9.0
+        uses: styfle/cancel-workflow-action@0.9.1
         with:
           access_token: ${{ github.token }}
       - name: Checkout

conda_recipe/meta.yaml

@@ -1,4 +1,4 @@
-{% set version = "1.3.2.6" %}
+{% set version = "1.3.3" %}
 
 package:
   name: wrf-python

src/wrf/g_slp.py

@@ -63,7 +63,7 @@ def get_slp(wrfin, timeidx=0, method="cat", squeeze=True,
 
         units (:obj:`str`): The desired units.  Refer to the :meth:`getvar`
             product table for a list of available units for 'slp'.  Default
-            is 'Pa'.
+            is 'hPa'.
 
     Returns:
 

src/wrf/projection.py

@@ -76,12 +76,9 @@ def __init__(self, central_longitude=0.0,
                 else:
                     xlimits[0] = -xlimits[0]
 
-            self._xlimits = tuple(xlimits)
-            self._ylimits = tuple(limits[..., 1])
-
             # Compatibility with cartopy >= 0.17
-            self._x_limits = self._xlimits
-            self._y_limits = self._ylimits
+            self._x_limits = tuple(xlimits)
+            self._y_limits =  tuple(limits[..., 1])
 
             self._threshold = np.diff(self.x_limits)[0] / 720
 
@@ -824,7 +821,7 @@ def _cartopy(self):
 
     def _proj4(self):
         _proj4 = ("+proj=stere +units=m +a={} +b={} "
-                  "+lat0={} +lon_0={} +lat_ts={} +nadgrids=@null".format(
+                  "+lat_0={} +lon_0={} +lat_ts={} +nadgrids=@null".format(
                                             Constants.WRF_EARTH_RADIUS,
                                             Constants.WRF_EARTH_RADIUS,
                                             self._hemi,