added comment
diff --git a/examples/simple_model_to_model_bias.py b/examples/simple_model_to_model_bias.py
index ac55c37..4b77fe7 100644
--- a/examples/simple_model_to_model_bias.py
+++ b/examples/simple_model_to_model_bias.py
@@ -73,6 +73,7 @@
# Filename for the output image/plot (without file extension)
OUTPUT_PLOT = "wrf_bias_compared_to_knmi"
+# Retrieve the local model files into the OS-aware temp directory.
tempdir = tempfile.gettempdir()
FILE_1_PATH = path.join(tempdir, FILE_1)
FILE_2_PATH = path.join(tempdir, FILE_2)