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MOM6 challenge exercises minor update #387

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sophmaca merged 2 commits into from
Jul 7, 2026
Merged

MOM6 challenge exercises minor update #387

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MOM6 challenge exercises minor update
chengz2 Jul 2, 2026
54f30b4
MOM6 challenge exercises run length update
chengz2 Jul 6, 2026
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2 changes: 1 addition & 1 deletion notebooks/challenge/mom/mom.ipynb
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"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."
]
},
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4 changes: 2 additions & 2 deletions notebooks/challenge/mom/mom_exercise_1.ipynb
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"- 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",
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"\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",
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6 changes: 3 additions & 3 deletions notebooks/challenge/mom/mom_exercise_2.ipynb
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Expand Up @@ -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",
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"./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",
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8 changes: 5 additions & 3 deletions notebooks/challenge/mom/mom_exercise_3.ipynb
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" \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",
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"./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",
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10 changes: 8 additions & 2 deletions notebooks/challenge/mom/mom_exercise_4.ipynb
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" \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",
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" \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",
Expand Down Expand Up @@ -143,6 +143,12 @@
"</div>\n",
"\n"
]
},
{
"cell_type": "markdown",
"id": "06dec4ad",
"metadata": {},
"source": []
}
],
"metadata": {
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