change the ref case for xml exercises

Author: cecilehannay

notebooks/modifications/xml/exercises/xml_runtype_exercise.ipynb

@@ -17,7 +17,13 @@
     "\n",
     "<strong>Exercise: Modify the `env_run.xml` file </strong><br><br>\n",
     "    \n",
-    "Branch from the end of Exercise 1 Part I to create a new case named \"b1850.branch\".  \n",
+    "Branch from the end of another run to create a new case named \"b1850.branch\".  \n",
+    "\n",
+    "We will branch from a run ``b1850.initial`` at year 2. The restart files for this run are located in: \n",
+    "```\n",
+    "/glade/campaign/cesm/tutorial/tutorial_2023_archive/b1850.initial/rest/0002-01-01-00000\n",
+    "```\n",
+    "\n",
     "Double the ocean coupling frequency (`OCN_NCPL`). Include an initial file as output data. Run for 1 month, then restart for 1 month. \n",
     "    \n",
     "    \n",
@@ -79,7 +85,7 @@
     "```\n",
     "    cd /glade/u/home/$USER/cases/b1850.branch\n",
     "    ./xmlchange RUN_TYPE=branch\n",
-    "    ./xmlchange RUN_REFCASE=b1850.run_length,RUN_REFDATE=0001-02-01,GET_REFCASE=FALSE\n",
+    "    ./xmlchange RUN_REFCASE=b1850.initial,RUN_REFDATE=0002-01-01,GET_REFCASE=FALSE\n",
     "```\n",
     "\n",
     "<br>        \n",
@@ -101,7 +107,7 @@
     "    \n",
     "```\n",
     "    ./case.setup\n",
-    "    cp /glade/derecho/scratch/$USER/archive/b1850.run_length/rest/0001-02-01-00000/*  /glade/derecho/scratch/$USER/b1850.branch/run/\n",
+    "    cp /glade/campaign/cesm/tutorial/tutorial_2023_archive/b1850.initial/rest/0002-01-01-00000/*  /glade/derecho/scratch/$USER/b1850.branch/run/\n",
     "```\n",
     "    \n",
     "<br>\n",

notebooks/modifications/xml/exercises/xml_timestep_exercise.ipynb

@@ -17,7 +17,14 @@
     "\n",
     "<strong>Exercise: Change physics timestep in CAM and CLM </strong><br><br>\n",
     "\n",
-    "**Hybrid** start a fully coupled run under pre-Industrial conditions with a resolution of f19_g17. Use restart and initial files from Exercise 1. Change the physics timestep in the atmosphere and land to 1200 seconds (default is 1800). Run 5 days.\n",
+    "**Hybrid** start a fully coupled run under pre-Industrial conditions with a resolution of f19_g17. \n",
+    "\n",
+    "Use restart and initial files from the run ``b1850.initial`` at year 2. The restart files for this run are located in: \n",
+    "```\n",
+    "/glade/campaign/cesm/tutorial/tutorial_2023_archive/b1850.initial/rest/0002-01-01-00000\n",
+    "```\n",
+    "\n",
+    "Change the physics timestep in the atmosphere and land to 1200 seconds (default is 1800). Run 5 days.\n",
     "    \n",
     "</div>"
    ]
@@ -70,7 +77,7 @@
     "```\n",
     "    cd /glade/u/home/$USER/cases/b1850.timestep\n",
     "    ./xmlchange RUN_TYPE=hybrid\n",
-    "    ./xmlchange RUN_REFCASE=b1850.run_length,RUN_REFDATE=0001-02-01,GET_REFCASE=FALSE,JOB_WALLCLOCK_TIME=2:00:00\n",
+    "    ./xmlchange RUN_REFCASE=b1850.initial,RUN_REFDATE=0002-01-01,GET_REFCASE=FALSE,JOB_WALLCLOCK_TIME=2:00:00\n",
     "```\n",
     "    \n",
     "<br>     \n",
@@ -86,7 +93,7 @@
     "    \n",
     "```\n",
     "    ./case.setup\n",
-    "    cp /glade/derecho/scratch/$USER/archive/b1850.run_length/rest/0001-02-01-00000/*   /glade/derecho/scratch/$USER/b1850.timestep/run/\n",
+    "    cp /glade/campaign/cesm/tutorial/tutorial_2023_archive/b1850.initial/rest/0002-01-01-00000/*   /glade/derecho/scratch/$USER/b1850.timestep/run/\n",
     "```\n",
     "    \n",
     "<br>    \n",