diff --git a/.gitignore b/.gitignore
index 5e46d37..cecd077 100644
--- a/.gitignore
+++ b/.gitignore
@@ -99,3 +99,8 @@ dmypy.json
 
 # VSCode files
 *vscode*
+
+# Ignore grib2 and netcdf files in the repository
+*.nc*
+*grb*
+*grib2*
diff --git a/.gitmodules b/.gitmodules
index fd7d84c..de071dc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "graphcast"]
-	path = graphcast
-	url = https://github.com/google-deepmind/graphcast.git
+  path = graphcast
+  url = https://github.com/noaa-emc/graphcast
+  ignore = dirty
diff --git a/environment.yml b/environment.yml
index 07d06cf..829e9ee 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,4 +1,4 @@
-name: graphcast
+name: condaenv
 channels:
   - conda-forge
 dependencies:
@@ -9,7 +9,9 @@ dependencies:
   - cartopy
   - jupyterlab
   - boto3
+  - nceplibs-g2c
+  - grib2io
   - pip
   - pip:
-    - https://github.com/deepmind/graphcast/archive/master.zip
+    - git+https://github.com/noaa-emc/graphcast@aea0678cfbd7e866e4a1d364b456861d0a03954b
     - flax
diff --git a/graphcast b/graphcast
index 6819a0f..aea0678 160000
--- a/graphcast
+++ b/graphcast
@@ -1 +1 @@
-Subproject commit 6819a0f19796ca9c34a079855339b37134b8d930
+Subproject commit aea0678cfbd7e866e4a1d364b456861d0a03954b
diff --git a/pyproject.toml b/pyproject.toml
index 316db50..4403668 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "mlglobal"
-version="0.1.0"
+version="1.0.0"
 description = "Implement Google DeepMind GenCast for ML-based Global Applications"
 readme = "README.md"
 authors = [
@@ -40,7 +40,8 @@ dependencies = [
     "scipy>=1.9.0",
     "trimesh>=3.15.0",
     "typing-extensions>=4.4.0",
-    "graphcast@git+https://github.com/google-deepmind/graphcast@6819a0f19796ca9c34a079855339b37134b8d930"
+    "grib2io>=2.5.4",
+    "graphcast@git+https://github.com/noaa-emc/graphcast@aea0678cfbd7e866e4a1d364b456861d0a03954b"
 ]
 
 [project.optional-dependencies]
@@ -48,6 +49,7 @@ gpu = ["jax[cuda12]>=0.4.1"]
 dev = [
     "pytest>=7.0.0",
     "pytest-cov>=4.0.0",
+    "pytest-mock>=3.10.0",
     "pre-commit>=4.3.0",
     "black>=24.4.2",
     "isort>=6.0.1",
@@ -70,13 +72,9 @@ notebooks = [
 requires = ["setuptools>=64.0.0", "setuptools-scm"]
 build-backend = "setuptools.build_meta"
 
-
 [tool.setuptools]
 package-dir = {"" = "src"}
 packages = ["mlglobal"]
 
 [project.scripts]
 ic-download = "mlglobal.cli.ic_download_main:main"
-#ic-preprocess = "mlglobal.cli.gefs_preprocess_main:main"
-#graphcast-run = "mlglobal.cli.graphcast_main:main"
-#nc2grib2 = "mlglobal.cli.nc2grib2_main:main"