diff --git a/notebooks/wp5/uth_atmospheric_circulation.ipynb b/notebooks/wp5/uth_atmospheric_circulation.ipynb
index 3cdebf7..a0cf833 100644
--- a/notebooks/wp5/uth_atmospheric_circulation.ipynb
+++ b/notebooks/wp5/uth_atmospheric_circulation.ipynb
@@ -211,9 +211,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "da_uth = ds_uth[\"uth_mean_ascend\"]\n",
-    "da_omega500 = ds_omega500[\"w\"]\n",
-    "\n",
     "series = {}\n",
     "for da in [ds_uth[\"uth_mean_ascend\"], ds_omega500[\"w\"]]:\n",
     "    series[da.name] = (\n",