diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index 1be20ee642..52e45f41f5 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -35,18 +35,18 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        python-version: ["3.11"]
+        python-version: ["3.12"]
         session: ["doctest", "gallery", "linkcheck"]
         include:
           - os: "ubuntu-latest"
-            python-version: "3.11"
+            python-version: "3.12"
             session: "tests"
             coverage: "--coverage"
           - os: "ubuntu-latest"
-            python-version: "3.10"
+            python-version: "3.11"
             session: "tests"
           - os: "ubuntu-latest"
-            python-version: "3.9"
+            python-version: "3.10"
             session: "tests"
 
     env:
diff --git a/.github/workflows/ci-wheels.yml b/.github/workflows/ci-wheels.yml
index 35dda2e0a6..9c53673481 100644
--- a/.github/workflows/ci-wheels.yml
+++ b/.github/workflows/ci-wheels.yml
@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.10", "3.11", "3.12"]
         session: ["wheel"]
     env:
       ENV_NAME: "ci-wheels"
diff --git a/benchmarks/asv.conf.json b/benchmarks/asv.conf.json
index 51983ec04d..6547556ab4 100644
--- a/benchmarks/asv.conf.json
+++ b/benchmarks/asv.conf.json
@@ -23,7 +23,7 @@
     //  * No build-time environment variables.
     //  * Is run in the same environment as the ASV install itself.
     "delegated_env_commands": [
-        "PY_VER=3.11 nox --envdir={conf_dir}/.asv/env/nox01 --session=tests --install-only --no-error-on-external-run --verbose"
+        "PY_VER=3.12 nox --envdir={conf_dir}/.asv/env/nox01 --session=tests --install-only --no-error-on-external-run --verbose"
     ],
     // The parent directory of the above environment.
     //  The most recently modified environment in the directory will be used.
diff --git a/benchmarks/bm_runner.py b/benchmarks/bm_runner.py
index f2883f079c..2c18de4a41 100644
--- a/benchmarks/bm_runner.py
+++ b/benchmarks/bm_runner.py
@@ -67,7 +67,7 @@ def _check_requirements(package: str) -> None:
 
 def _prep_data_gen_env() -> None:
     """Create or access a separate, unchanging environment for generating test data."""
-    python_version = "3.11"
+    python_version = "3.12"
     data_gen_var = "DATA_GEN_PYTHON"
     if data_gen_var in environ:
         echo("Using existing data generation environment.")
diff --git a/docs/src/whatsnew/latest.rst b/docs/src/whatsnew/latest.rst
index 295d809ac4..f50b739592 100644
--- a/docs/src/whatsnew/latest.rst
+++ b/docs/src/whatsnew/latest.rst
@@ -74,7 +74,8 @@ This document explains the changes made to Iris for this release
 🔗 Dependencies
 ===============
 
-#. N/A
+#. `@bjlittle`_ dropped support for ``py39`` and adopted support for ``py312`` as per
+   the `NEP-29`_ schedule. (:pull:`5894`)
 
 
 📚 Documentation
@@ -100,6 +101,7 @@ This document explains the changes made to Iris for this release
 
 #. `@jfrost-mo`_ enabled colour output for pytest on GitHub Actions. (:pull:`5895`)
 
+
 .. comment
     Whatsnew author names (@github name) in alphabetical order. Note that,
     core dev names are automatically included by the common_links.inc:
@@ -115,3 +117,4 @@ This document explains the changes made to Iris for this release
 .. _NPY002: https://docs.astral.sh/ruff/rules/numpy-legacy-random/
 .. _numpydoc validation: https://numpydoc.readthedocs.io/en/latest/validation.html#
 .. _Dask version 2024.2.1: https://docs.dask.org/en/stable/changelog.html#v2024-2-1
+.. _NEP-29: https://numpy.org/neps/nep-0029-deprecation_policy.html#drop-schedule
diff --git a/lib/iris/tests/test_coding_standards.py b/lib/iris/tests/test_coding_standards.py
index 2f14ea703e..9bb26a426a 100644
--- a/lib/iris/tests/test_coding_standards.py
+++ b/lib/iris/tests/test_coding_standards.py
@@ -69,8 +69,8 @@ def test_python_versions():
     Test is designed to fail whenever Iris' supported Python versions are
     updated, insisting that versions are updated EVERYWHERE in-sync.
     """
-    latest_supported = "3.11"
-    all_supported = ["3.9", "3.10", latest_supported]
+    latest_supported = "3.12"
+    all_supported = ["3.10", "3.11", latest_supported]
 
     root_dir = Path(__file__).parents[3]
     workflows_dir = root_dir / ".github" / "workflows"
diff --git a/lib/iris/tests/unit/common/metadata/test__NamedTupleMeta.py b/lib/iris/tests/unit/common/metadata/test__NamedTupleMeta.py
index 5099645082..63d700e53e 100644
--- a/lib/iris/tests/unit/common/metadata/test__NamedTupleMeta.py
+++ b/lib/iris/tests/unit/common/metadata/test__NamedTupleMeta.py
@@ -45,7 +45,7 @@ def _members(self):
         self.assertEqual(self.names(Metadata.__bases__), expected)
         expected = ["Metadata", "object"]
         self.assertEqual(self.names(Metadata.__mro__), expected)
-        emsg = "Can't instantiate abstract class .* with abstract method.* _members"
+        emsg = "Can't instantiate abstract class"
         with self.assertRaisesRegex(TypeError, emsg):
             _ = Metadata()
 
diff --git a/lib/iris/tests/unit/coords/test_Coord.py b/lib/iris/tests/unit/coords/test_Coord.py
index c0accfe071..3740b17f22 100644
--- a/lib/iris/tests/unit/coords/test_Coord.py
+++ b/lib/iris/tests/unit/coords/test_Coord.py
@@ -1124,7 +1124,7 @@ def test_copy_coord(self, ignore_axis, copy_or_from, result, sample_coord):
 
 class Test___init____abstractmethod(tests.IrisTest):
     def test(self):
-        emsg = "Can't instantiate abstract class Coord with abstract method.* __init__"
+        emsg = "Can't instantiate abstract class Coord"
         with self.assertRaisesRegex(TypeError, emsg):
             _ = Coord(points=[0, 1])
 
diff --git a/lib/iris/tests/unit/coords/test__DimensionalMetadata.py b/lib/iris/tests/unit/coords/test__DimensionalMetadata.py
index caff08fb66..da0dccd873 100644
--- a/lib/iris/tests/unit/coords/test__DimensionalMetadata.py
+++ b/lib/iris/tests/unit/coords/test__DimensionalMetadata.py
@@ -28,10 +28,7 @@
 
 class Test___init____abstractmethod(tests.IrisTest):
     def test(self):
-        emsg = (
-            "Can't instantiate abstract class _DimensionalMetadata with "
-            "abstract methods __init__"
-        )
+        emsg = "Can't instantiate abstract class _DimensionalMetadata"
         with self.assertRaisesRegex(TypeError, emsg):
             _ = _DimensionalMetadata(0)
 
diff --git a/lib/iris/tests/unit/experimental/ugrid/load/test_load_mesh.py b/lib/iris/tests/unit/experimental/ugrid/load/test_load_mesh.py
index 6e78057746..54ca5b8fcf 100644
--- a/lib/iris/tests/unit/experimental/ugrid/load/test_load_mesh.py
+++ b/lib/iris/tests/unit/experimental/ugrid/load/test_load_mesh.py
@@ -24,7 +24,8 @@ def test_calls_load_meshes(self):
         args = [("file_1", "file_2"), "my_var_name"]
         with PARSE_UGRID_ON_LOAD.context():
             _ = load_mesh(args)
-        self.assertTrue(self.load_meshes_mock.called_with(args))
+        assert self.load_meshes_mock.call_count == 1
+        assert self.load_meshes_mock.call_args == ((args, None),)
 
     def test_returns_mesh(self):
         with PARSE_UGRID_ON_LOAD.context():
diff --git a/noxfile.py b/noxfile.py
index 81c8b02fef..2eb46de349 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -15,7 +15,7 @@
 nox.options.reuse_existing_virtualenvs = True
 
 #: Python versions we can run sessions under
-_PY_VERSIONS_ALL = ["3.9", "3.10", "3.11"]
+_PY_VERSIONS_ALL = ["3.10", "3.11", "3.12"]
 _PY_VERSION_LATEST = _PY_VERSIONS_ALL[-1]
 
 #: One specific python version for docs builds
diff --git a/pyproject.toml b/pyproject.toml
index f55a77cfdf..82f7017f59 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,9 +22,9 @@ classifiers = [
     "Operating System :: Unix",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: Implementation :: CPython",
     "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Atmospheric Science",
@@ -50,7 +50,7 @@ keywords = [
 ]
 license = {text = "BSD-3-Clause"}
 name = "scitools-iris"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 
 [project.urls]
 Code = "https://github.com/SciTools/iris"
@@ -73,7 +73,6 @@ src = [
     "lib",
     "docs/src",
 ]
-target-version = "py39"
 
 [tool.ruff.format]
 preview = false
diff --git a/requirements/iris.yml b/requirements/iris.yml
index b0c50b8bfd..331a25f10d 120000
--- a/requirements/iris.yml
+++ b/requirements/iris.yml
@@ -1 +1 @@
-py311.yml
\ No newline at end of file
+py312.yml
\ No newline at end of file
diff --git a/requirements/locks/py310-linux-64.lock b/requirements/locks/py310-linux-64.lock
index c8a087295d..58009f67ab 100644
--- a/requirements/locks/py310-linux-64.lock
+++ b/requirements/locks/py310-linux-64.lock
@@ -23,7 +23,7 @@ https://conda.anaconda.org/conda-forge/linux-64/alsa-lib-1.2.11-hd590300_1.conda
 https://conda.anaconda.org/conda-forge/linux-64/aom-3.8.2-h59595ed_0.conda#625e1fed28a5139aed71b3a76117ef84
 https://conda.anaconda.org/conda-forge/linux-64/attr-2.5.1-h166bdaf_1.tar.bz2#d9c69a24ad678ffce24c6543a0176b00
 https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-hd590300_5.conda#69b8b6202a07720f448be700e300ccf4
-https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.0-hd590300_0.conda#a6d86d33ddb84cde21de214cce563823
+https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.1-hd590300_0.conda#dcde58ff9a1f30b0037a2315d1846d1f
 https://conda.anaconda.org/conda-forge/linux-64/dav1d-1.2.1-hd590300_0.conda#418c6ca5929a611cbd69204907a83995
 https://conda.anaconda.org/conda-forge/linux-64/double-conversion-3.3.0-h59595ed_0.conda#c2f83a5ddadadcdb08fe05863295ee97
 https://conda.anaconda.org/conda-forge/linux-64/eigen-3.4.0-h00ab1b0_0.conda#b1b879d6d093f55dd40d58b5eb2f0699
@@ -155,7 +155,7 @@ https://conda.anaconda.org/conda-forge/noarch/cloudpickle-3.0.0-pyhd8ed1ab_0.con
 https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2#3faab06a954c2a04039983f2c4a50d99
 https://conda.anaconda.org/conda-forge/noarch/colorcet-3.1.0-pyhd8ed1ab_0.conda#4d155b600b63bc6ba89d91fab74238f8
 https://conda.anaconda.org/conda-forge/noarch/cycler-0.12.1-pyhd8ed1ab_0.conda#5cd86562580f274031ede6aa6aa24441
-https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.9-py310hc6cd4ac_0.conda#987a8359726157c7a7cdd198f882f82d
+https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.10-py310hc6cd4ac_0.conda#bd1d71ee240be36f1d85c86177d6964f
 https://conda.anaconda.org/conda-forge/linux-64/dbus-1.13.6-h5008d03_3.tar.bz2#ecfff944ba3960ecb334b9a2663d708d
 https://conda.anaconda.org/conda-forge/noarch/distlib-0.3.8-pyhd8ed1ab_0.conda#db16c66b759a64dc5183d69cc3745a52
 https://conda.anaconda.org/conda-forge/linux-64/docutils-0.19-py310hff52083_1.tar.bz2#21b8fa2179290505e607f5ccd65b01b0
@@ -192,7 +192,7 @@ https://conda.anaconda.org/conda-forge/noarch/packaging-24.0-pyhd8ed1ab_0.conda#
 https://conda.anaconda.org/conda-forge/noarch/platformdirs-4.2.0-pyhd8ed1ab_0.conda#a0bc3eec34b0fab84be6b2da94e98e20
 https://conda.anaconda.org/conda-forge/noarch/pluggy-1.4.0-pyhd8ed1ab_0.conda#139e9feb65187e916162917bb2484976
 https://conda.anaconda.org/conda-forge/linux-64/psutil-5.9.8-py310h2372a71_0.conda#bd19b3096442ea342c4a5208379660b1
-https://conda.anaconda.org/conda-forge/noarch/pycparser-2.21-pyhd8ed1ab_0.tar.bz2#076becd9e05608f8dc72757d5f3a91ff
+https://conda.anaconda.org/conda-forge/noarch/pycparser-2.22-pyhd8ed1ab_0.conda#844d9eb3b43095b031874477f7d70088
 https://conda.anaconda.org/conda-forge/noarch/pygments-2.17.2-pyhd8ed1ab_0.conda#140a7f159396547e9799aa98f9f0742e
 https://conda.anaconda.org/conda-forge/noarch/pyparsing-3.1.2-pyhd8ed1ab_0.conda#b9a4dacf97241704529131a0dfc0494f
 https://conda.anaconda.org/conda-forge/noarch/pyshp-2.3.1-pyhd8ed1ab_0.tar.bz2#92a889dc236a5197612bc85bee6d7174
@@ -290,7 +290,7 @@ https://conda.anaconda.org/conda-forge/linux-64/aiohttp-3.9.3-py310h2372a71_1.co
 https://conda.anaconda.org/conda-forge/linux-64/cftime-1.6.3-py310h1f7b6fc_0.conda#31beda75384647959d5792a1a7dc571a
 https://conda.anaconda.org/conda-forge/noarch/colorspacious-1.1.2-pyh24bf2e0_0.tar.bz2#b73afa0d009a51cabd3ec99c4d2ef4f3
 https://conda.anaconda.org/conda-forge/linux-64/contourpy-1.2.0-py310hd41b1e2_0.conda#85d2aaa7af046528d339da1e813c3a9f
-https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.3.1-pyhd8ed1ab_0.conda#52dd56ce3afa6a52c2f3d3116875ff32
+https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.4.0-pyhd8ed1ab_0.conda#291ae1e1179a934cfb7dfbbb802206d6
 https://conda.anaconda.org/conda-forge/linux-64/gst-plugins-base-1.22.9-h8e1006c_0.conda#614b81f8ed66c56b640faee7076ad14a
 https://conda.anaconda.org/conda-forge/noarch/identify-2.5.35-pyhd8ed1ab_0.conda#9472bfd206a2b7bb8143835e37667054
 https://conda.anaconda.org/conda-forge/linux-64/libass-0.17.1-h8fe9dca_1.conda#c306fd9cc90c0585171167d09135a827
@@ -305,7 +305,7 @@ https://conda.anaconda.org/conda-forge/linux-64/scipy-1.12.0-py310hb13e2d6_2.con
 https://conda.anaconda.org/conda-forge/linux-64/shapely-2.0.3-py310hc3e127f_0.conda#fbc825d13cbcb2d5d3fbba22c83fd203
 https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-apidoc-0.3.0-py_1.tar.bz2#855b087883443abb10f5faf6eef40860
 https://conda.anaconda.org/conda-forge/linux-64/cf-units-3.2.0-py310h1f7b6fc_4.conda#0ca55ca20891d393846695354b32ebc5
-https://conda.anaconda.org/conda-forge/noarch/distributed-2024.3.1-pyhd8ed1ab_0.conda#b0ad5ef44595ef37c3008fc04ecd2abf
+https://conda.anaconda.org/conda-forge/noarch/distributed-2024.4.0-pyhd8ed1ab_0.conda#5085b4511ddca32d600783bed80a420f
 https://conda.anaconda.org/conda-forge/linux-64/esmf-8.6.0-nompi_h7b237b1_0.conda#a5f1925a75d9fcf0bffd07a194f83895
 https://conda.anaconda.org/conda-forge/linux-64/ffmpeg-6.1.1-gpl_h38e077a_106.conda#23fe0f8b47e7b5527bcc1dfb6087dba6
 https://conda.anaconda.org/conda-forge/linux-64/gtk2-2.24.33-h280cfa0_4.conda#410f86e58e880dcc7b0e910a8e89c05c
diff --git a/requirements/locks/py311-linux-64.lock b/requirements/locks/py311-linux-64.lock
index e4e52fe02f..2b79a26a9e 100644
--- a/requirements/locks/py311-linux-64.lock
+++ b/requirements/locks/py311-linux-64.lock
@@ -23,7 +23,7 @@ https://conda.anaconda.org/conda-forge/linux-64/alsa-lib-1.2.11-hd590300_1.conda
 https://conda.anaconda.org/conda-forge/linux-64/aom-3.8.2-h59595ed_0.conda#625e1fed28a5139aed71b3a76117ef84
 https://conda.anaconda.org/conda-forge/linux-64/attr-2.5.1-h166bdaf_1.tar.bz2#d9c69a24ad678ffce24c6543a0176b00
 https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-hd590300_5.conda#69b8b6202a07720f448be700e300ccf4
-https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.0-hd590300_0.conda#a6d86d33ddb84cde21de214cce563823
+https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.1-hd590300_0.conda#dcde58ff9a1f30b0037a2315d1846d1f
 https://conda.anaconda.org/conda-forge/linux-64/dav1d-1.2.1-hd590300_0.conda#418c6ca5929a611cbd69204907a83995
 https://conda.anaconda.org/conda-forge/linux-64/double-conversion-3.3.0-h59595ed_0.conda#c2f83a5ddadadcdb08fe05863295ee97
 https://conda.anaconda.org/conda-forge/linux-64/eigen-3.4.0-h00ab1b0_0.conda#b1b879d6d093f55dd40d58b5eb2f0699
@@ -155,7 +155,7 @@ https://conda.anaconda.org/conda-forge/noarch/cloudpickle-3.0.0-pyhd8ed1ab_0.con
 https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2#3faab06a954c2a04039983f2c4a50d99
 https://conda.anaconda.org/conda-forge/noarch/colorcet-3.1.0-pyhd8ed1ab_0.conda#4d155b600b63bc6ba89d91fab74238f8
 https://conda.anaconda.org/conda-forge/noarch/cycler-0.12.1-pyhd8ed1ab_0.conda#5cd86562580f274031ede6aa6aa24441
-https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.9-py311hb755f60_0.conda#c49924051b8336f6031eb3d019619cba
+https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.10-py311hb755f60_0.conda#f3a8a500a2e743ff92f418f0eaf9bf71
 https://conda.anaconda.org/conda-forge/linux-64/dbus-1.13.6-h5008d03_3.tar.bz2#ecfff944ba3960ecb334b9a2663d708d
 https://conda.anaconda.org/conda-forge/noarch/distlib-0.3.8-pyhd8ed1ab_0.conda#db16c66b759a64dc5183d69cc3745a52
 https://conda.anaconda.org/conda-forge/linux-64/docutils-0.19-py311h38be061_1.tar.bz2#599159b0740e9b82e7eef0e8471be3c2
@@ -192,7 +192,7 @@ https://conda.anaconda.org/conda-forge/noarch/packaging-24.0-pyhd8ed1ab_0.conda#
 https://conda.anaconda.org/conda-forge/noarch/platformdirs-4.2.0-pyhd8ed1ab_0.conda#a0bc3eec34b0fab84be6b2da94e98e20
 https://conda.anaconda.org/conda-forge/noarch/pluggy-1.4.0-pyhd8ed1ab_0.conda#139e9feb65187e916162917bb2484976
 https://conda.anaconda.org/conda-forge/linux-64/psutil-5.9.8-py311h459d7ec_0.conda#9bc62d25dcf64eec484974a3123c9d57
-https://conda.anaconda.org/conda-forge/noarch/pycparser-2.21-pyhd8ed1ab_0.tar.bz2#076becd9e05608f8dc72757d5f3a91ff
+https://conda.anaconda.org/conda-forge/noarch/pycparser-2.22-pyhd8ed1ab_0.conda#844d9eb3b43095b031874477f7d70088
 https://conda.anaconda.org/conda-forge/noarch/pygments-2.17.2-pyhd8ed1ab_0.conda#140a7f159396547e9799aa98f9f0742e
 https://conda.anaconda.org/conda-forge/noarch/pyparsing-3.1.2-pyhd8ed1ab_0.conda#b9a4dacf97241704529131a0dfc0494f
 https://conda.anaconda.org/conda-forge/noarch/pyshp-2.3.1-pyhd8ed1ab_0.tar.bz2#92a889dc236a5197612bc85bee6d7174
@@ -288,7 +288,7 @@ https://conda.anaconda.org/conda-forge/linux-64/ukkonen-1.0.1-py311h9547e67_4.co
 https://conda.anaconda.org/conda-forge/linux-64/cftime-1.6.3-py311h1f0f07a_0.conda#b7e6d52b39e199238c3400cafaabafb3
 https://conda.anaconda.org/conda-forge/noarch/colorspacious-1.1.2-pyh24bf2e0_0.tar.bz2#b73afa0d009a51cabd3ec99c4d2ef4f3
 https://conda.anaconda.org/conda-forge/linux-64/contourpy-1.2.0-py311h9547e67_0.conda#40828c5b36ef52433e21f89943e09f33
-https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.3.1-pyhd8ed1ab_0.conda#52dd56ce3afa6a52c2f3d3116875ff32
+https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.4.0-pyhd8ed1ab_0.conda#291ae1e1179a934cfb7dfbbb802206d6
 https://conda.anaconda.org/conda-forge/linux-64/gst-plugins-base-1.22.9-h8e1006c_0.conda#614b81f8ed66c56b640faee7076ad14a
 https://conda.anaconda.org/conda-forge/noarch/identify-2.5.35-pyhd8ed1ab_0.conda#9472bfd206a2b7bb8143835e37667054
 https://conda.anaconda.org/conda-forge/linux-64/libass-0.17.1-h8fe9dca_1.conda#c306fd9cc90c0585171167d09135a827
@@ -304,7 +304,7 @@ https://conda.anaconda.org/conda-forge/linux-64/shapely-2.0.3-py311h2032efe_0.co
 https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-apidoc-0.3.0-py_1.tar.bz2#855b087883443abb10f5faf6eef40860
 https://conda.anaconda.org/conda-forge/noarch/wslink-1.12.4-pyhd8ed1ab_0.conda#9c8a6235a36aaf096be3118daba08a7b
 https://conda.anaconda.org/conda-forge/linux-64/cf-units-3.2.0-py311h1f0f07a_4.conda#1e105c1a8ea2163507726144b401eb1b
-https://conda.anaconda.org/conda-forge/noarch/distributed-2024.3.1-pyhd8ed1ab_0.conda#b0ad5ef44595ef37c3008fc04ecd2abf
+https://conda.anaconda.org/conda-forge/noarch/distributed-2024.4.0-pyhd8ed1ab_0.conda#5085b4511ddca32d600783bed80a420f
 https://conda.anaconda.org/conda-forge/linux-64/esmf-8.6.0-nompi_h7b237b1_0.conda#a5f1925a75d9fcf0bffd07a194f83895
 https://conda.anaconda.org/conda-forge/linux-64/ffmpeg-6.1.1-gpl_h38e077a_106.conda#23fe0f8b47e7b5527bcc1dfb6087dba6
 https://conda.anaconda.org/conda-forge/linux-64/gtk2-2.24.33-h280cfa0_4.conda#410f86e58e880dcc7b0e910a8e89c05c
diff --git a/requirements/locks/py39-linux-64.lock b/requirements/locks/py312-linux-64.lock
similarity index 90%
rename from requirements/locks/py39-linux-64.lock
rename to requirements/locks/py312-linux-64.lock
index beac258b50..843f140231 100644
--- a/requirements/locks/py39-linux-64.lock
+++ b/requirements/locks/py312-linux-64.lock
@@ -1,6 +1,6 @@
 # Generated by conda-lock.
 # platform: linux-64
-# input_hash: fece045ea7d1280b9f4887a323a2b27e7a7a1afc9985b663720c4809f8205bd5
+# input_hash: f8e11b93213ceabf22b4148d6e3fb1e2c1eecfdc3d0b563ba94aa6fccbb5759b
 @EXPLICIT
 https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2#d7c89558ba9fa0495403155b64376d81
 https://conda.anaconda.org/conda-forge/linux-64/ca-certificates-2024.2.2-hbcca054_0.conda#2f4327a1cbe7f022401b236e915a5fef
@@ -11,7 +11,7 @@ https://conda.anaconda.org/conda-forge/noarch/font-ttf-ubuntu-0.83-h77eed37_1.co
 https://conda.anaconda.org/conda-forge/linux-64/ld_impl_linux-64-2.40-h41732ed_0.conda#7aca3059a1729aa76c597603f10b0dd3
 https://conda.anaconda.org/conda-forge/linux-64/libstdcxx-ng-13.2.0-h7e041cc_5.conda#f6f6600d18a4047b54f803cf708b868a
 https://conda.anaconda.org/conda-forge/linux-64/nlohmann_json-3.11.3-h59595ed_0.conda#df9ae69b85e0cab9bde23eff1e87f183
-https://conda.anaconda.org/conda-forge/linux-64/python_abi-3.9-4_cp39.conda#bfe4b3259a8ac6cdf0037752904da6a7
+https://conda.anaconda.org/conda-forge/linux-64/python_abi-3.12-4_cp312.conda#dccc2d142812964fcc6abdc97b672dff
 https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda#161081fc7cec0bfda0d86d7cb595f8d8
 https://conda.anaconda.org/conda-forge/linux-64/utfcpp-4.0.5-ha770c72_0.conda#25965c1d1d5fc00ce2b663b73008e3b7
 https://conda.anaconda.org/conda-forge/noarch/fonts-conda-forge-1-0.tar.bz2#f766549260d6815b0c52253f1fb1bb29
@@ -23,7 +23,7 @@ https://conda.anaconda.org/conda-forge/linux-64/alsa-lib-1.2.11-hd590300_1.conda
 https://conda.anaconda.org/conda-forge/linux-64/aom-3.8.2-h59595ed_0.conda#625e1fed28a5139aed71b3a76117ef84
 https://conda.anaconda.org/conda-forge/linux-64/attr-2.5.1-h166bdaf_1.tar.bz2#d9c69a24ad678ffce24c6543a0176b00
 https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-hd590300_5.conda#69b8b6202a07720f448be700e300ccf4
-https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.0-hd590300_0.conda#a6d86d33ddb84cde21de214cce563823
+https://conda.anaconda.org/conda-forge/linux-64/c-ares-1.28.1-hd590300_0.conda#dcde58ff9a1f30b0037a2315d1846d1f
 https://conda.anaconda.org/conda-forge/linux-64/dav1d-1.2.1-hd590300_0.conda#418c6ca5929a611cbd69204907a83995
 https://conda.anaconda.org/conda-forge/linux-64/double-conversion-3.3.0-h59595ed_0.conda#c2f83a5ddadadcdb08fe05863295ee97
 https://conda.anaconda.org/conda-forge/linux-64/eigen-3.4.0-h00ab1b0_0.conda#b1b879d6d093f55dd40d58b5eb2f0699
@@ -133,7 +133,7 @@ https://conda.anaconda.org/conda-forge/linux-64/libtheora-1.1.1-h7f98852_1005.ta
 https://conda.anaconda.org/conda-forge/linux-64/libtiff-4.6.0-h1dd3fc0_3.conda#66f03896ffbe1a110ffda05c7a856504
 https://conda.anaconda.org/conda-forge/linux-64/mysql-libs-8.0.33-hca2cd23_6.conda#e87530d1b12dd7f4e0f856dc07358d60
 https://conda.anaconda.org/conda-forge/linux-64/nss-3.98-h1d7d5a4_0.conda#54b56c2fdf973656b748e0378900ec13
-https://conda.anaconda.org/conda-forge/linux-64/python-3.9.19-h0755675_0_cpython.conda#d9ee3647fbd9e8595b8df759b2bbefb8
+https://conda.anaconda.org/conda-forge/linux-64/python-3.12.2-hab00c5b_0_cpython.conda#ad7b68400f3a6ebe72b00be093c7f301
 https://conda.anaconda.org/conda-forge/linux-64/sqlite-3.45.2-h2c6b66d_0.conda#1423efca06ed343c1da0fc429bae0779
 https://conda.anaconda.org/conda-forge/linux-64/udunits2-2.2.28-h40f5838_3.conda#6bb8deb138f87c9d48320ac21b87e7a1
 https://conda.anaconda.org/conda-forge/linux-64/xcb-util-0.4.0-hd590300_1.conda#9bfac7ccd94d54fd21a0501296d60424
@@ -146,7 +146,7 @@ https://conda.anaconda.org/conda-forge/noarch/antlr-python-runtime-4.11.1-pyhd8e
 https://conda.anaconda.org/conda-forge/linux-64/atk-1.0-2.38.0-hd4edc92_1.tar.bz2#6c72ec3e660a51736913ef6ea68c454b
 https://conda.anaconda.org/conda-forge/noarch/attrs-23.2.0-pyh71513ae_0.conda#5e4c0743c70186509d1412e03c2d8dfa
 https://conda.anaconda.org/conda-forge/linux-64/brotli-1.1.0-hd590300_1.conda#f27a24d46e3ea7b70a1f98e50c62508f
-https://conda.anaconda.org/conda-forge/linux-64/brotli-python-1.1.0-py39h3d6467e_1.conda#c48418c8b35f1d59ae9ae1174812b40a
+https://conda.anaconda.org/conda-forge/linux-64/brotli-python-1.1.0-py312h30efb56_1.conda#45801a89533d3336a365284d93298e36
 https://conda.anaconda.org/conda-forge/noarch/certifi-2024.2.2-pyhd8ed1ab_0.conda#0876280e409658fc6f9e75d035960333
 https://conda.anaconda.org/conda-forge/noarch/cfgv-3.3.1-pyhd8ed1ab_0.tar.bz2#ebb5f5f7dc4f1a3780ef7ea7738db08c
 https://conda.anaconda.org/conda-forge/noarch/charset-normalizer-3.3.2-pyhd8ed1ab_0.conda#7f4a9e3fcff3f6356ae99244a014da6a
@@ -155,15 +155,15 @@ https://conda.anaconda.org/conda-forge/noarch/cloudpickle-3.0.0-pyhd8ed1ab_0.con
 https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2#3faab06a954c2a04039983f2c4a50d99
 https://conda.anaconda.org/conda-forge/noarch/colorcet-3.1.0-pyhd8ed1ab_0.conda#4d155b600b63bc6ba89d91fab74238f8
 https://conda.anaconda.org/conda-forge/noarch/cycler-0.12.1-pyhd8ed1ab_0.conda#5cd86562580f274031ede6aa6aa24441
-https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.9-py39h3d6467e_0.conda#82f4e576cbe74921703f91d3b43c8a73
+https://conda.anaconda.org/conda-forge/linux-64/cython-3.0.10-py312h30efb56_0.conda#b119273bff37284cbcb9281c1e85e67d
 https://conda.anaconda.org/conda-forge/linux-64/dbus-1.13.6-h5008d03_3.tar.bz2#ecfff944ba3960ecb334b9a2663d708d
 https://conda.anaconda.org/conda-forge/noarch/distlib-0.3.8-pyhd8ed1ab_0.conda#db16c66b759a64dc5183d69cc3745a52
-https://conda.anaconda.org/conda-forge/linux-64/docutils-0.19-py39hf3d152e_1.tar.bz2#adb733ec2ee669f6d010758d054da60f
+https://conda.anaconda.org/conda-forge/linux-64/docutils-0.17.1-py312h7900ff3_4.conda#dad0b3e1f365cd4945d1ec69fe703152
 https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.0-pyhd8ed1ab_2.conda#8d652ea2ee8eaee02ed8dc820bc794aa
 https://conda.anaconda.org/conda-forge/noarch/execnet-2.0.2-pyhd8ed1ab_0.conda#67de0d8241e1060a479e3c37793e26f9
 https://conda.anaconda.org/conda-forge/noarch/filelock-3.13.3-pyhd8ed1ab_0.conda#ff15f46b0d34308f4d40c1c51df07592
 https://conda.anaconda.org/conda-forge/linux-64/fontconfig-2.14.2-h14ed4e7_0.conda#0f69b688f52ff6da70bccb7ff7001d1d
-https://conda.anaconda.org/conda-forge/linux-64/frozenlist-1.4.1-py39hd1e30aa_0.conda#194fa03bd6b1054b8de8d48d335e45b2
+https://conda.anaconda.org/conda-forge/linux-64/frozenlist-1.4.1-py312h98912ed_0.conda#2715764dfa5fb00343e03d5a59b64582
 https://conda.anaconda.org/conda-forge/noarch/fsspec-2024.3.1-pyhca7485f_0.conda#b7f0662ef2c9d4404f0af9eef5ed2fde
 https://conda.anaconda.org/conda-forge/linux-64/gdk-pixbuf-2.42.10-h829c605_5.conda#8fdb82e5d9694dd8e9ed9ac8fdf48a26
 https://conda.anaconda.org/conda-forge/linux-64/glib-tools-2.80.0-hde27a5a_1.conda#939ddd853b1d98bf6fd22cc0adeda317
@@ -172,7 +172,7 @@ https://conda.anaconda.org/conda-forge/noarch/idna-3.6-pyhd8ed1ab_0.conda#1a76f0
 https://conda.anaconda.org/conda-forge/noarch/imagesize-1.4.1-pyhd8ed1ab_0.tar.bz2#7de5386c8fea29e76b303f37dde4c352
 https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda#f800d2da156d08e289b14e87e43c1ae5
 https://conda.anaconda.org/conda-forge/noarch/iris-sample-data-2.4.0-pyhd8ed1ab_0.tar.bz2#18ee9c07cf945a33f92caf1ee3d23ad9
-https://conda.anaconda.org/conda-forge/linux-64/kiwisolver-1.4.5-py39h7633fee_1.conda#c9f74d717e5a2847a9f8b779c54130f2
+https://conda.anaconda.org/conda-forge/linux-64/kiwisolver-1.4.5-py312h8572e83_1.conda#c1e71f2bc05d8e8e033aefac2c490d05
 https://conda.anaconda.org/conda-forge/linux-64/lcms2-2.16-hb7c19ff_0.conda#51bb7010fc86f70eee639b4bb7a894f5
 https://conda.anaconda.org/conda-forge/linux-64/libblas-3.9.0-21_linux64_openblas.conda#0ac9f44fc096772b0aa092119b00c3ca
 https://conda.anaconda.org/conda-forge/linux-64/libclang13-15.0.7-default_h5d6823c_5.conda#2d694a9ffdcc30e89dea34a8dcdab6ae
@@ -182,25 +182,25 @@ https://conda.anaconda.org/conda-forge/linux-64/libpq-16.2-h33b98f1_1.conda#9e49
 https://conda.anaconda.org/conda-forge/linux-64/libsystemd0-255-h3516f8a_1.conda#3366af27f0b593544a6cd453c7932ac5
 https://conda.anaconda.org/conda-forge/linux-64/libwebp-1.3.2-h658648e_1.conda#0ebb65e8d86843865796c7c95a941f34
 https://conda.anaconda.org/conda-forge/noarch/locket-1.0.0-pyhd8ed1ab_0.tar.bz2#91e27ef3d05cc772ce627e51cff111c4
-https://conda.anaconda.org/conda-forge/linux-64/loguru-0.7.2-py39hf3d152e_1.conda#80f2066f7641b913233f07b800e2afde
-https://conda.anaconda.org/conda-forge/linux-64/markupsafe-2.1.5-py39hd1e30aa_0.conda#9a9a22eb1f83c44953319ee3b027769f
-https://conda.anaconda.org/conda-forge/linux-64/msgpack-python-1.0.7-py39h7633fee_0.conda#f668e146a2ed03a4e62ffbb98b3115fb
-https://conda.anaconda.org/conda-forge/linux-64/multidict-6.0.5-py39hd1e30aa_0.conda#e2005168d5a334f88a1d95d02e139239
+https://conda.anaconda.org/conda-forge/linux-64/loguru-0.7.2-py312h7900ff3_1.conda#507696b7c888a8b872b50f24ac860089
+https://conda.anaconda.org/conda-forge/linux-64/markupsafe-2.1.5-py312h98912ed_0.conda#6ff0b9582da2d4a74a1f9ae1f9ce2af6
+https://conda.anaconda.org/conda-forge/linux-64/msgpack-python-1.0.7-py312h8572e83_0.conda#1ae83e30fae86320e888cb4b1f2d3b47
+https://conda.anaconda.org/conda-forge/linux-64/multidict-6.0.5-py312h98912ed_0.conda#d0d2cab29d6c33c47f719d7a1879e08b
 https://conda.anaconda.org/conda-forge/noarch/munkres-1.1.4-pyh9f0ad1d_0.tar.bz2#2ba8498c1018c1e9c61eb99b973dfe19
 https://conda.anaconda.org/conda-forge/linux-64/openjpeg-2.5.2-h488ebb8_0.conda#7f2e286780f072ed750df46dc2631138
 https://conda.anaconda.org/conda-forge/noarch/packaging-24.0-pyhd8ed1ab_0.conda#248f521b64ce055e7feae3105e7abeb8
 https://conda.anaconda.org/conda-forge/noarch/platformdirs-4.2.0-pyhd8ed1ab_0.conda#a0bc3eec34b0fab84be6b2da94e98e20
 https://conda.anaconda.org/conda-forge/noarch/pluggy-1.4.0-pyhd8ed1ab_0.conda#139e9feb65187e916162917bb2484976
-https://conda.anaconda.org/conda-forge/linux-64/psutil-5.9.8-py39hd1e30aa_0.conda#ec86403fde8793ac1c36f8afa3d15902
-https://conda.anaconda.org/conda-forge/noarch/pycparser-2.21-pyhd8ed1ab_0.tar.bz2#076becd9e05608f8dc72757d5f3a91ff
+https://conda.anaconda.org/conda-forge/linux-64/psutil-5.9.8-py312h98912ed_0.conda#3facaca6cc0f7988df3250efccd32da3
+https://conda.anaconda.org/conda-forge/noarch/pycparser-2.22-pyhd8ed1ab_0.conda#844d9eb3b43095b031874477f7d70088
 https://conda.anaconda.org/conda-forge/noarch/pygments-2.17.2-pyhd8ed1ab_0.conda#140a7f159396547e9799aa98f9f0742e
 https://conda.anaconda.org/conda-forge/noarch/pyparsing-3.1.2-pyhd8ed1ab_0.conda#b9a4dacf97241704529131a0dfc0494f
 https://conda.anaconda.org/conda-forge/noarch/pyshp-2.3.1-pyhd8ed1ab_0.tar.bz2#92a889dc236a5197612bc85bee6d7174
 https://conda.anaconda.org/conda-forge/noarch/pysocks-1.7.1-pyha2e5f31_6.tar.bz2#2a7de29fb590ca14b5243c4c812c8025
 https://conda.anaconda.org/conda-forge/noarch/python-tzdata-2024.1-pyhd8ed1ab_0.conda#98206ea9954216ee7540f0c773f2104d
-https://conda.anaconda.org/conda-forge/linux-64/python-xxhash-3.4.1-py39hd1e30aa_0.conda#756cb152772a225587a05ca0ec68fc08
+https://conda.anaconda.org/conda-forge/linux-64/python-xxhash-3.4.1-py312h98912ed_0.conda#a8f9739e0ada2320148c92ddd608864f
 https://conda.anaconda.org/conda-forge/noarch/pytz-2024.1-pyhd8ed1ab_0.conda#3eeeeb9e4827ace8c0c1419c85d590ad
-https://conda.anaconda.org/conda-forge/linux-64/pyyaml-6.0.1-py39hd1e30aa_1.conda#37218233bcdc310e4fde6453bc1b40d8
+https://conda.anaconda.org/conda-forge/linux-64/pyyaml-6.0.1-py312h98912ed_1.conda#e3fd78d8d490af1d84763b9fe3f2e552
 https://conda.anaconda.org/conda-forge/noarch/scooby-0.9.2-pyhd8ed1ab_0.conda#66dc03353b88f5f2db8c630854174a3f
 https://conda.anaconda.org/conda-forge/noarch/setuptools-69.2.0-pyhd8ed1ab_0.conda#da214ecd521a720a9d521c68047682dc
 https://conda.anaconda.org/conda-forge/noarch/six-1.16.0-pyh6c4a22f_0.tar.bz2#e5f25f8dbc060e9a8d912e432202afc2
@@ -210,11 +210,11 @@ https://conda.anaconda.org/conda-forge/noarch/soupsieve-2.5-pyhd8ed1ab_1.conda#3
 https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-jsmath-1.0.1-pyhd8ed1ab_0.conda#da1d979339e2714c30a8e806a33ec087
 https://conda.anaconda.org/conda-forge/linux-64/tbb-2021.11.0-h00ab1b0_1.conda#4531d2927578e7e254ff3bcf6457518c
 https://conda.anaconda.org/conda-forge/noarch/tblib-3.0.0-pyhd8ed1ab_0.conda#04eedddeb68ad39871c8127dd1c21f4f
+https://conda.anaconda.org/conda-forge/noarch/toml-0.10.2-pyhd8ed1ab_0.tar.bz2#f832c45a477c78bebd107098db465095
 https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2#5844808ffab9ebdb694585b50ba02a96
 https://conda.anaconda.org/conda-forge/noarch/toolz-0.12.1-pyhd8ed1ab_0.conda#2fcb582444635e2c402e8569bb94e039
-https://conda.anaconda.org/conda-forge/linux-64/tornado-6.4-py39hd1e30aa_0.conda#1e865e9188204cdfb1fd2531780add88
+https://conda.anaconda.org/conda-forge/linux-64/tornado-6.4-py312h98912ed_0.conda#e8332e534dca8c5c12c8352e0a23501c
 https://conda.anaconda.org/conda-forge/noarch/typing_extensions-4.10.0-pyha770c72_0.conda#16ae769069b380646c47142d719ef466
-https://conda.anaconda.org/conda-forge/linux-64/unicodedata2-15.1.0-py39hd1e30aa_0.conda#1da984bbb6e765743e13388ba7b7b2c8
 https://conda.anaconda.org/conda-forge/noarch/wheel-0.43.0-pyhd8ed1ab_1.conda#0b5293a157c2b5cd513dd1b03d8d3aae
 https://conda.anaconda.org/conda-forge/linux-64/xcb-util-image-0.4.0-h8ee46fc_1.conda#9d7bcddf49cbf727730af10e71022c73
 https://conda.anaconda.org/conda-forge/linux-64/xkeyboard-config-2.41-hd590300_0.conda#81f740407b45e3f9047b3174fa94eb9e
@@ -229,14 +229,14 @@ https://conda.anaconda.org/conda-forge/noarch/aiosignal-1.3.1-pyhd8ed1ab_0.tar.b
 https://conda.anaconda.org/conda-forge/noarch/babel-2.14.0-pyhd8ed1ab_0.conda#9669586875baeced8fc30c0826c3270e
 https://conda.anaconda.org/conda-forge/noarch/beautifulsoup4-4.12.3-pyha770c72_0.conda#332493000404d8411859539a5a630865
 https://conda.anaconda.org/conda-forge/linux-64/cairo-1.18.0-h3faef2a_0.conda#f907bb958910dc404647326ca80c263e
-https://conda.anaconda.org/conda-forge/linux-64/cffi-1.16.0-py39h7a31438_0.conda#ac992767d7f8ed2cb27e71e78f0fb2d7
+https://conda.anaconda.org/conda-forge/linux-64/cffi-1.16.0-py312hf06ca03_0.conda#56b0ca764ce23cc54f3f7e2a7b970f6d
 https://conda.anaconda.org/conda-forge/noarch/click-default-group-1.2.4-pyhd8ed1ab_0.conda#7c2b6931f9b3548ed78478332095c3e9
-https://conda.anaconda.org/conda-forge/linux-64/cytoolz-0.12.3-py39hd1e30aa_0.conda#dc0fb8e157c7caba4c98f1e1f9d2e5f4
-https://conda.anaconda.org/conda-forge/linux-64/fonttools-4.50.0-py39hd1e30aa_0.conda#8b689d531a6f99ef71212081c0126147
+https://conda.anaconda.org/conda-forge/linux-64/coverage-7.4.4-py312h98912ed_0.conda#7002151fcfe55ded0595fc7c3f5e1209
+https://conda.anaconda.org/conda-forge/linux-64/cytoolz-0.12.3-py312h98912ed_0.conda#a4fbffb84a54767266c69e3699078a00
+https://conda.anaconda.org/conda-forge/linux-64/fonttools-4.50.0-py312h98912ed_0.conda#a4585049e1232d8ecb1dc5afe45d6784
 https://conda.anaconda.org/conda-forge/linux-64/glib-2.80.0-hf2295e7_1.conda#d3bcc5c186f78feba6f39ea047c35950
 https://conda.anaconda.org/conda-forge/linux-64/hdf5-1.14.3-nompi_h4f84152_100.conda#d471a5c3abc984b662d9bae3bb7fd8a5
 https://conda.anaconda.org/conda-forge/noarch/importlib-metadata-7.1.0-pyha770c72_0.conda#0896606848b2dc5cebdf111b6543aa04
-https://conda.anaconda.org/conda-forge/noarch/importlib_resources-6.4.0-pyhd8ed1ab_0.conda#c5d3907ad8bd7bf557521a1833cf7e6d
 https://conda.anaconda.org/conda-forge/noarch/jinja2-3.1.3-pyhd8ed1ab_0.conda#e7d8df6509ba635247ff9aea31134262
 https://conda.anaconda.org/conda-forge/linux-64/libcblas-3.9.0-21_linux64_openblas.conda#4a3816d06451c4946e2db26b86472cb6
 https://conda.anaconda.org/conda-forge/linux-64/libclang-15.0.7-default_h127d8a8_5.conda#09b94dd3a7e304df5b83176239347920
@@ -248,7 +248,7 @@ https://conda.anaconda.org/conda-forge/linux-64/libva-2.21.0-hd590300_0.conda#e5
 https://conda.anaconda.org/conda-forge/linux-64/libxkbcommon-1.7.0-h662e7e4_0.conda#b32c0da42b1f24a98577bb3d7fc0b995
 https://conda.anaconda.org/conda-forge/noarch/nodeenv-1.8.0-pyhd8ed1ab_0.conda#2a75b296096adabbabadd5e9782e5fcc
 https://conda.anaconda.org/conda-forge/noarch/partd-1.4.1-pyhd8ed1ab_0.conda#acf4b7c0bcd5fa3b0e05801c4d2accd6
-https://conda.anaconda.org/conda-forge/linux-64/pillow-10.2.0-py39had0adad_0.conda#2972754dc054bb079d1d121918b5126f
+https://conda.anaconda.org/conda-forge/linux-64/pillow-10.2.0-py312hf3581a9_0.conda#f35cb852483290b40b5a47e117e80a1d
 https://conda.anaconda.org/conda-forge/noarch/pip-24.0-pyhd8ed1ab_0.conda#f586ac1e56c8638b64f9c8122a7b8a67
 https://conda.anaconda.org/conda-forge/linux-64/proj-9.3.1-h1d62c97_0.conda#44ec51d0857d9be26158bb85caa74fdb
 https://conda.anaconda.org/conda-forge/linux-64/pulseaudio-client-16.1-hb77b528_5.conda#ac902ff3c1c6d750dd0dfc93a974ab74
@@ -258,13 +258,12 @@ https://conda.anaconda.org/conda-forge/linux-64/tbb-devel-2021.11.0-h5ccd973_1.c
 https://conda.anaconda.org/conda-forge/noarch/typing-extensions-4.10.0-hd8ed1ab_0.conda#091683b9150d2ebaa62fd7e2c86433da
 https://conda.anaconda.org/conda-forge/noarch/urllib3-2.2.1-pyhd8ed1ab_0.conda#08807a87fa7af10754d46f63b368e016
 https://conda.anaconda.org/conda-forge/noarch/virtualenv-20.25.1-pyhd8ed1ab_0.conda#8797a4e26be36880a603aba29c785352
-https://conda.anaconda.org/conda-forge/linux-64/yarl-1.9.4-py39hd1e30aa_0.conda#7288bccf99dd979dfcf80bb372c3de3f
+https://conda.anaconda.org/conda-forge/linux-64/yarl-1.9.4-py312h98912ed_0.conda#ec3eb4803df33e90a41bc216a68d02f1
+https://conda.anaconda.org/conda-forge/linux-64/aiohttp-3.9.3-py312h98912ed_1.conda#defaa0b8dea3553ca6ee750626a06e87
 https://conda.anaconda.org/conda-forge/noarch/asv_runner-0.2.1-pyhd8ed1ab_0.conda#fdcbeb072c80c805a2ededaa5f91cd79
-https://conda.anaconda.org/conda-forge/noarch/async-timeout-4.0.3-pyhd8ed1ab_0.conda#3ce482ec3066e6d809dbbb1d1679f215
 https://conda.anaconda.org/conda-forge/linux-64/glew-2.1.0-h9c3ff4c_2.tar.bz2#fb05eb5c47590b247658243d27fc32f1
 https://conda.anaconda.org/conda-forge/linux-64/gstreamer-1.22.9-h98fc4e7_0.conda#bcc7157b06fce7f5e055402a8135dfd8
 https://conda.anaconda.org/conda-forge/linux-64/harfbuzz-8.3.0-h3d44ed6_0.conda#5a6f6c00ef982a9bc83558d9ac8f64a0
-https://conda.anaconda.org/conda-forge/noarch/importlib-resources-6.4.0-pyhd8ed1ab_0.conda#dcbadab7a68738a028e195ab68ab2d2e
 https://conda.anaconda.org/conda-forge/noarch/importlib_metadata-7.1.0-hd8ed1ab_0.conda#6ef2b72d291b39e479d7694efa2b2b98
 https://conda.anaconda.org/conda-forge/linux-64/libnetcdf-4.9.2-nompi_h9612171_113.conda#b2414908e43c442ddc68e6148774a304
 https://conda.anaconda.org/conda-forge/linux-64/libopenvino-auto-batch-plugin-2024.0.0-hd5fc58b_4.conda#de9c380fea8634540db5fc8422888df1
@@ -278,52 +277,52 @@ https://conda.anaconda.org/conda-forge/linux-64/libopenvino-paddle-frontend-2024
 https://conda.anaconda.org/conda-forge/linux-64/libopenvino-pytorch-frontend-2024.0.0-h59595ed_4.conda#ec121a4195acadad086f84719cc91430
 https://conda.anaconda.org/conda-forge/linux-64/libopenvino-tensorflow-frontend-2024.0.0-hca94c1a_4.conda#bdbf11f760f1a3b35d766e03cebd9c42
 https://conda.anaconda.org/conda-forge/linux-64/libopenvino-tensorflow-lite-frontend-2024.0.0-h59595ed_4.conda#4354ea9f30a8c5111403fa4b24a2ad66
-https://conda.anaconda.org/conda-forge/linux-64/numpy-1.26.4-py39h474f0d3_0.conda#aa265f5697237aa13cc10f53fa8acc4f
+https://conda.anaconda.org/conda-forge/linux-64/numpy-1.26.4-py312heda63a1_0.conda#d8285bea2a350f63fab23bf460221f3f
 https://conda.anaconda.org/conda-forge/noarch/pbr-6.0.0-pyhd8ed1ab_0.conda#8dbab5ba746ed14aa32cb232dc437f8f
-https://conda.anaconda.org/conda-forge/linux-64/pyproj-3.6.1-py39h15b0fa6_5.conda#85e186c7ff673b0d0026782ec353fb2a
+https://conda.anaconda.org/conda-forge/linux-64/pyproj-3.6.1-py312h38f1c37_5.conda#867baf2a7c5c6147e05ecc90f6c52a0c
+https://conda.anaconda.org/conda-forge/noarch/pytest-cov-5.0.0-pyhd8ed1ab_0.conda#c54c0107057d67ddf077751339ec2c63
 https://conda.anaconda.org/conda-forge/noarch/pytest-xdist-3.5.0-pyhd8ed1ab_0.conda#d5f595da2daead898ca958ac62f0307b
 https://conda.anaconda.org/conda-forge/noarch/requests-2.31.0-pyhd8ed1ab_0.conda#a30144e4156cdbb236f99ebb49828f8b
 https://conda.anaconda.org/conda-forge/noarch/setuptools-scm-8.0.4-pyhd8ed1ab_1.conda#a1986ad21c766ff22f7bae93f0641020
-https://conda.anaconda.org/conda-forge/linux-64/ukkonen-1.0.1-py39h7633fee_4.conda#b66595fbda99771266f042f42c7457be
-https://conda.anaconda.org/conda-forge/linux-64/aiohttp-3.9.3-py39hd1e30aa_1.conda#437936123de28b9bf81d35b943170c4f
-https://conda.anaconda.org/conda-forge/linux-64/cftime-1.6.3-py39h44dd56e_0.conda#baea2f5dfb3ab7b1c836385d2e1daca7
+https://conda.anaconda.org/conda-forge/linux-64/ukkonen-1.0.1-py312h8572e83_4.conda#52c9e25ee0a32485a102eeecdb7eef52
+https://conda.anaconda.org/conda-forge/linux-64/cftime-1.6.3-py312hc7c0aa3_0.conda#bd11505f0fe9bd8bcec01ce1220f63c7
 https://conda.anaconda.org/conda-forge/noarch/colorspacious-1.1.2-pyh24bf2e0_0.tar.bz2#b73afa0d009a51cabd3ec99c4d2ef4f3
-https://conda.anaconda.org/conda-forge/linux-64/contourpy-1.2.0-py39h7633fee_0.conda#ed71ad3e30eb03da363fb797419cce98
-https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.3.1-pyhd8ed1ab_0.conda#52dd56ce3afa6a52c2f3d3116875ff32
+https://conda.anaconda.org/conda-forge/linux-64/contourpy-1.2.0-py312h8572e83_0.conda#b6249daaaf4577e6f72d95fc4ab767c6
+https://conda.anaconda.org/conda-forge/noarch/dask-core-2024.4.0-pyhd8ed1ab_0.conda#291ae1e1179a934cfb7dfbbb802206d6
 https://conda.anaconda.org/conda-forge/linux-64/gst-plugins-base-1.22.9-h8e1006c_0.conda#614b81f8ed66c56b640faee7076ad14a
 https://conda.anaconda.org/conda-forge/noarch/identify-2.5.35-pyhd8ed1ab_0.conda#9472bfd206a2b7bb8143835e37667054
 https://conda.anaconda.org/conda-forge/linux-64/libass-0.17.1-h8fe9dca_1.conda#c306fd9cc90c0585171167d09135a827
-https://conda.anaconda.org/conda-forge/linux-64/mo_pack-0.3.0-py39hd1e30aa_1.conda#ca63612907462c8e36edcc9bbacc253e
+https://conda.anaconda.org/conda-forge/linux-64/mo_pack-0.3.0-py312h98912ed_1.conda#d5273d1e67b7b3a871a0a711c6532a2f
 https://conda.anaconda.org/conda-forge/linux-64/netcdf-fortran-4.6.1-nompi_hacb5139_103.conda#50f05f98d084805642d24dff910e11e8
-https://conda.anaconda.org/conda-forge/linux-64/pandas-2.2.1-py39hddac248_0.conda#85293a042c24a08e71b7608ee66b6134
+https://conda.anaconda.org/conda-forge/linux-64/pandas-2.2.1-py312hfb8ada1_0.conda#e8fcd9179004edd4fb1bcd888d0aeb47
 https://conda.anaconda.org/conda-forge/linux-64/pango-1.52.1-ha41ecd1_0.conda#5c0cc002bf4eaa56448b0729efd6e96c
 https://conda.anaconda.org/conda-forge/noarch/pooch-1.8.1-pyhd8ed1ab_0.conda#d15917f33140f8d2ac9ca44db7ec8a25
-https://conda.anaconda.org/conda-forge/linux-64/pykdtree-1.3.11-py39h44dd56e_0.conda#146e5b81c6c6b2279b2d71aec5ae0b5e
-https://conda.anaconda.org/conda-forge/linux-64/pywavelets-1.4.1-py39h44dd56e_1.conda#d037c20e3da2e85f03ebd20ad480c359
-https://conda.anaconda.org/conda-forge/linux-64/scipy-1.12.0-py39h474f0d3_2.conda#6ab241b2023730f6b41712dc1b503afa
-https://conda.anaconda.org/conda-forge/linux-64/shapely-2.0.3-py39h6404dd3_0.conda#1520f039123452cd2de847068449a618
+https://conda.anaconda.org/conda-forge/linux-64/pykdtree-1.3.11-py312hc7c0aa3_0.conda#38b3ec047cefe673613dd406f605e009
+https://conda.anaconda.org/conda-forge/linux-64/pywavelets-1.4.1-py312hc7c0aa3_1.conda#b91ccda9d16e7016efd831c7d8f97a9e
+https://conda.anaconda.org/conda-forge/linux-64/scipy-1.12.0-py312heda63a1_2.conda#17729ab9bbb780e93458c7857afffcab
+https://conda.anaconda.org/conda-forge/linux-64/shapely-2.0.3-py312h9e6bd2c_0.conda#5e0580a84d702cda52c8b0245e4c14d2
 https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-apidoc-0.3.0-py_1.tar.bz2#855b087883443abb10f5faf6eef40860
-https://conda.anaconda.org/conda-forge/linux-64/cf-units-3.2.0-py39h44dd56e_4.conda#81310d21bf9d91754c1220c585bb72d6
-https://conda.anaconda.org/conda-forge/noarch/distributed-2024.3.1-pyhd8ed1ab_0.conda#b0ad5ef44595ef37c3008fc04ecd2abf
+https://conda.anaconda.org/conda-forge/noarch/wslink-1.12.4-pyhd8ed1ab_0.conda#9c8a6235a36aaf096be3118daba08a7b
+https://conda.anaconda.org/conda-forge/linux-64/cf-units-3.2.0-py312hc7c0aa3_4.conda#d9c9fa64fdf4e57d7f8957b957d784a0
+https://conda.anaconda.org/conda-forge/noarch/distributed-2024.4.0-pyhd8ed1ab_0.conda#5085b4511ddca32d600783bed80a420f
 https://conda.anaconda.org/conda-forge/linux-64/esmf-8.6.0-nompi_h7b237b1_0.conda#a5f1925a75d9fcf0bffd07a194f83895
 https://conda.anaconda.org/conda-forge/linux-64/ffmpeg-6.1.1-gpl_h38e077a_106.conda#23fe0f8b47e7b5527bcc1dfb6087dba6
 https://conda.anaconda.org/conda-forge/linux-64/gtk2-2.24.33-h280cfa0_4.conda#410f86e58e880dcc7b0e910a8e89c05c
 https://conda.anaconda.org/conda-forge/noarch/imagehash-4.3.1-pyhd8ed1ab_0.tar.bz2#132ad832787a2156be1f1b309835001a
 https://conda.anaconda.org/conda-forge/linux-64/librsvg-2.56.3-he3f83f7_1.conda#03bd1ddcc942867a19528877143b9852
-https://conda.anaconda.org/conda-forge/linux-64/matplotlib-base-3.8.3-py39he9076e7_0.conda#5456bdfe5809ebf5689eda6c808b686e
-https://conda.anaconda.org/conda-forge/linux-64/netcdf4-1.6.5-nompi_py39h4282601_100.conda#d2809fbf0d8ae7b8ca92c456cb44a7d4
+https://conda.anaconda.org/conda-forge/linux-64/matplotlib-base-3.8.3-py312he5832f3_0.conda#3b0545901b09b1376b9c0e0ec72409de
+https://conda.anaconda.org/conda-forge/linux-64/netcdf4-1.6.5-nompi_py312h26027e0_100.conda#2d7b4954dc5a090796e0ba89c325d09b
 https://conda.anaconda.org/conda-forge/noarch/pre-commit-3.7.0-pyha770c72_0.conda#846ba0877cda9c4f11e13720cacd1968
-https://conda.anaconda.org/conda-forge/linux-64/python-stratify-0.3.0-py39h44dd56e_1.conda#90c5165691fdcb5a9f43907e32ea48b4
+https://conda.anaconda.org/conda-forge/linux-64/python-stratify-0.3.0-py312hc7c0aa3_1.conda#81789bd582b389e77ff709f6b27300fb
 https://conda.anaconda.org/conda-forge/linux-64/qt-main-5.15.8-h5810be5_19.conda#54866f708d43002a514d0b9b0f84bc11
-https://conda.anaconda.org/conda-forge/noarch/wslink-1.12.4-pyhd8ed1ab_0.conda#9c8a6235a36aaf096be3118daba08a7b
-https://conda.anaconda.org/conda-forge/linux-64/cartopy-0.22.0-py39hddac248_1.conda#8dd2eb1e7aa9a33a92a75bdcea3f0dd0
+https://conda.anaconda.org/conda-forge/linux-64/cartopy-0.22.0-py312hfb8ada1_1.conda#17e09fffccc807ef2d2644f21883d64f
 https://conda.anaconda.org/conda-forge/noarch/cmocean-3.1.3-pyhd8ed1ab_0.conda#671543f081d6be0b6b3e99b586386b44
 https://conda.anaconda.org/conda-forge/noarch/esmpy-8.6.0-pyhc1e730c_0.conda#60404b48ef1ccfb92cfd055f8844b700
 https://conda.anaconda.org/conda-forge/linux-64/graphviz-9.0.0-h78e8752_1.conda#a3f4cd4a512ec5db35ffbf25ba11f537
 https://conda.anaconda.org/conda-forge/noarch/nc-time-axis-1.4.1-pyhd8ed1ab_0.tar.bz2#281b58948bf60a2582de9e548bcc5369
-https://conda.anaconda.org/conda-forge/linux-64/vtk-base-9.2.6-qt_py39h1234567_220.conda#dadcd0dc225d51a481df8f27f70feaef
-https://conda.anaconda.org/conda-forge/linux-64/vtk-io-ffmpeg-9.2.6-qt_py39h1234567_220.conda#37776296bbc64b7684d2af27aa2f1653
-https://conda.anaconda.org/conda-forge/linux-64/vtk-9.2.6-qt_py39h1234567_220.conda#aa08666bf3c8c425add2db0ff49af88c
+https://conda.anaconda.org/conda-forge/linux-64/vtk-base-9.2.6-qt_py312h1234567_220.conda#1dc0327554f77b69e50dd7e000bcb466
+https://conda.anaconda.org/conda-forge/linux-64/vtk-io-ffmpeg-9.2.6-qt_py312h1234567_220.conda#dd89b6944ac4f761f20825b51bbc891d
+https://conda.anaconda.org/conda-forge/linux-64/vtk-9.2.6-qt_py312h1234567_220.conda#db449dc60b613f7835293890a0f5a8d1
 https://conda.anaconda.org/conda-forge/noarch/pyvista-0.43.4-pyhd8ed1ab_0.conda#21e567168518369ce3f1c51e69b8ac0e
 https://conda.anaconda.org/conda-forge/noarch/geovista-0.4.1-pyhd8ed1ab_0.conda#8dbe5526321fa7f1cb4dbc4f1644dcb3
 https://conda.anaconda.org/conda-forge/noarch/pydata-sphinx-theme-0.15.2-pyhd8ed1ab_0.conda#ce99859070b0e17ccc63234ca58f3ed8
diff --git a/requirements/py39.yml b/requirements/py312.yml
similarity index 96%
rename from requirements/py39.yml
rename to requirements/py312.yml
index 692e78c7b9..8eb5bf6048 100644
--- a/requirements/py39.yml
+++ b/requirements/py312.yml
@@ -4,7 +4,7 @@ channels:
   - conda-forge
 
 dependencies:
-  - python =3.9
+  - python =3.12
 
 # Setup dependencies.
   - setuptools >=64
@@ -43,6 +43,7 @@ dependencies:
   - pre-commit
   - psutil
   - pytest
+  - pytest-cov
   - pytest-xdist
   - requests