diff --git a/notebooks/challenge/mom/mom.ipynb b/notebooks/challenge/mom/mom.ipynb
index 87a1155b..a8020fcb 100644
--- a/notebooks/challenge/mom/mom.ipynb
+++ b/notebooks/challenge/mom/mom.ipynb
@@ -48,7 +48,7 @@
    "source": [
     "- All exercises use the same code base as the rest of the tutorial.   \n",
     "- You will be using the GW_JRA compset at the TL319_t233_wg37 resolution.\n",
-    "- You will run a control simulation and three experimental simulations. Each simulation will be run for one year. \n",
+    "- You will run a control simulation and three experimental simulations. Each simulation will be run for one month. \n",
     "- You will then use 'ncview' \\([http://meteora.ucsd.edu/~pierce/ncview_home_page.html](http://meteora.ucsd.edu/~pierce/ncview_home_page.html)\\) to evaluate how the experiments differ from the control simulation."
    ]
   },
diff --git a/notebooks/challenge/mom/mom_exercise_1.ipynb b/notebooks/challenge/mom/mom_exercise_1.ipynb
index 6bf42e32..3456aeba 100644
--- a/notebooks/challenge/mom/mom_exercise_1.ipynb
+++ b/notebooks/challenge/mom/mom_exercise_1.ipynb
@@ -35,7 +35,7 @@
     "- t233 specifies the ocean model resolution (2/3 degree)\n",
     "- wg37 specifies the wave model resolution (3 degree)\n",
     "    \n",
-    "Set the run length to **1 year**. \n",
+    "Set the run length to **1 month**. \n",
     "\n",
     "Build and run the model. Since this is a control case, we want to build it \"out of the box\" without any modifications. \n",
     "\n",
@@ -114,7 +114,7 @@
     "\n",
     "Change the <font face=\"Courier\" color='purple'><strong>run length</strong></font>:\n",
     "```   \n",
-    "./xmlchange STOP_N=1,STOP_OPTION=nyears\n",
+    "./xmlchange STOP_N=1,STOP_OPTION=nmonths\n",
     "```\n",
     "<br>\n",
     "\n",
diff --git a/notebooks/challenge/mom/mom_exercise_2.ipynb b/notebooks/challenge/mom/mom_exercise_2.ipynb
index 8e02dc02..af05f4c4 100644
--- a/notebooks/challenge/mom/mom_exercise_2.ipynb
+++ b/notebooks/challenge/mom/mom_exercise_2.ipynb
@@ -18,11 +18,11 @@
     " \n",
     "Create a case called **g.GW_JRA.TL319_t233_wg37.002** using the compset ``GW_JRA`` at ``TL319_t233_wg37`` resolution.\n",
     "\n",
-    "Verify that the run length is set to **1 year**. \n",
+    "Verify that the run length is set to **1 month**. \n",
     "\n",
     "In user_nl_mom add the following line: ``MIXEDLAYER_RESTRAT = False``.\n",
     "\n",
-    "Build and run the model for one year. \n",
+    "Build and run the model for one month. \n",
     "\n",
     "Compare the simulations using ncview/ncdiff, etc.\n",
     "\n",
@@ -81,7 +81,7 @@
     "./case.setup\n",
     "```\n",
     "\n",
-    "Verify that the <font face=\"Courier\" color='purple'><strong>run length</strong></font> is 1 year:\n",
+    "Verify that the <font face=\"Courier\" color='purple'><strong>run length</strong></font> is 1 month:\n",
     "```   \n",
     "./xmlquery -p STOP_N\n",
     "./xmlquery -p STOP_OPTION\n",
diff --git a/notebooks/challenge/mom/mom_exercise_3.ipynb b/notebooks/challenge/mom/mom_exercise_3.ipynb
index 90cadf91..3d7db137 100644
--- a/notebooks/challenge/mom/mom_exercise_3.ipynb
+++ b/notebooks/challenge/mom/mom_exercise_3.ipynb
@@ -26,11 +26,13 @@
     " \n",
     "Create a case called **g.GW_JRA.TL319_t233_wg37.003** using the compset ``GW_JRA`` at ``TL319_t233_wg37`` resolution. \n",
     "    \n",
-    "Verify that the run length is set to **1 year**. \n",
+    "Verify that the run length is set to **1 month**. \n",
     "\n",
     "Modify the subroutine `mom_import` in `mom_cap_methods.F90` to increase the zonal (x) component of the wind stress by 25%.\n",
     "\n",
-    "Build and run the model for one year. \n",
+    "**Note: `taux` is the actual zonal wind stress in MOM6, while `u_flux` is the rotated component along the MOM6 grid lines, so here the change should be applied to `taux`.**\n",
+    "\n",
+    "Build and run the model for one month. \n",
     "\n",
     "Compare the simulations using ncview/ncdiff, etc.\n",
     "\n",
@@ -93,7 +95,7 @@
     "./case.setup\n",
     "```\n",
     "\n",
-    "Verify that the <font face=\"Courier\" color='purple'><strong>run length</strong></font> is 1 year:\n",
+    "Verify that the <font face=\"Courier\" color='purple'><strong>run length</strong></font> is 1 month:\n",
     "```   \n",
     "./xmlquery STOP_N\n",
     "./xmlquery STOP_OPTION\n",
diff --git a/notebooks/challenge/mom/mom_exercise_4.ipynb b/notebooks/challenge/mom/mom_exercise_4.ipynb
index d2d4fd52..897cbda9 100644
--- a/notebooks/challenge/mom/mom_exercise_4.ipynb
+++ b/notebooks/challenge/mom/mom_exercise_4.ipynb
@@ -26,7 +26,7 @@
     " \n",
     "Create a case called **g.GW1850MARBL_JRA.TL319_t233_wg37.001** using the compset  ``GW1850MARBL_JRA``  at ``TL319_t233_wg37`` resolution. \n",
     "    \n",
-    "Set the run length to **1 year**. \n",
+    "Set the run length to **1 month**. \n",
     "\n",
     "**Note that the BGC support is not fully incorporated yet, which means you cannot run it \"out of the box\" but have to make the following modifications:**\n",
     "\n",
@@ -107,7 +107,7 @@
     "    \n",
     "Change the <font face=\"Courier\" color='purple'><strong>run length</strong></font>:\n",
     "```   \n",
-    "./xmlchange STOP_N=1,STOP_OPTION=nyears\n",
+    "./xmlchange STOP_N=1,STOP_OPTION=nmonths\n",
     "```\n",
     "\n",
     "Edit the file <font face=\"Courier\" color='purple'><strong>user_nl_mom</strong></font> and add the lines:\n",
@@ -143,6 +143,12 @@
     "</div>\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "06dec4ad",
+   "metadata": {},
+   "source": []
   }
  ],
  "metadata": {