Weather Research and Forecasting (WRF) model/UNU 2010 Training - Revision history

Root: /* Panoply */

2010-09-29T09:48:29Z

Panoply

← Older revision		Revision as of 09:48, 29 September 2010
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	Currently panoply does not support dynamic zooming. Use the map tab of the created map to		Currently panoply does not support dynamic zooming. Use the map tab of the created map to
	manually ajust scaling and centering. When good set it in Preferences. Panoply will use these		manually ajust scaling and centering. When good set it in Preferences. Panoply will use these settings in the future.
	settings in the future.

	Notes:		Notes:
	Remember the incompatibility of &dynamics section. However, the mywrf_modelcopy.bash takes care of this.		Remember the incompatibility of &dynamics section. However, the mywrf_modelcopy.bash takes care of this.


	=== GRIB Files ===		=== GRIB Files ===

Root: /* How to use your system */

2010-09-29T09:48:13Z

How to use your system

← Older revision		Revision as of 09:48, 29 September 2010
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	==How to use your system==		==How to use your system==

	As was mentioned before, WRF model is meant to be operated within a UNIX/Linux operating system. However, we'll attempt to run most of the pre-processing tasks from Windows (accessing your VMWare ~~sysem~~ remotely) and will venture into Linux (VMWare system) to do the actual model running and post-processing only.		As was mentioned before, WRF model is meant to be operated within a UNIX/Linux operating system. However, we'll attempt to run most of the pre-processing tasks from Windows (accessing your VMWare system remotely) and will venture into Linux (VMWare system) to do the actual model running and post-processing only.
	Make sure your share directory works properly. If not re-enable sharing and specify a share directory from Virtual Machine->Virtual Machine Settings-> Options->Shared Folders menu on top of you WMWare window. Shared folder is needed to exchange data between windows (host) and Linux (VMWare guest)		Make sure your share directory works properly. If not re-enable sharing and specify a share directory from Virtual Machine->Virtual Machine Settings-> Options->Shared Folders menu on top of you WMWare window. Shared folder is needed to exchange data between windows (host) and Linux (VMWare guest)

	Running WRF
			=== Running WRF ===


	<nowiki>		<nowiki>
	</nowiki><pre><nowiki>		</nowiki><pre><nowiki>
	First login to the Linux system and check its ip address.		First login to the Linux system and check its IP address.
	~~This~~ can ~~be done by~~ command ifconfig. (~~Your instructor can help here.)~~		There is an icon on your desktop that will find this for you. Or you can use the command <tt>ifconfig</tt>.
	Note ~~this~~ down. Also remember that this ip address can ~~sometimes~~ change ~~over~~ time.		(Note the IP address down. Also remember that this IP address can change each time
	If you cannot connect to Linux from Domain Wizard, recheck the IP address.		If you cannot connect to Linux from Domain Wizard, recheck the IP address.)

			At this stage, you can minimize (do not close!!) VMWare window and return to windows system. Do the following on windows.



	1. Run Domain Wizard ~~by clicking on run_DomainWizard.bat file~~ in ~~DOMAIN_WIZ directory~~.		1. Run Domain Wizard (There is a shortcut in the WRF_LINUX start menu/Desktop entry).
	2. Set up the connection as follows:		2. Set up the connection as follows:
			(First time you have to click on WPS program to initiate entering the following data)
	Computer: The IP address you noted down		Computer: The IP address you noted down
	WPS Programs: /opt/wrf.run/WPS		WPS Programs: /opt/wrf.run/WPS
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	9. Run mywrf_postplot.bash to check your output.		9. Run mywrf_postplot.bash to check your output.

			</nowiki></pre>


			=== idiosyncrasies of Domain Wizard ===

	~~idiosyncrasies of Domain Wizard~~
	~~-------------------------------~~
	when editing namelist.input in wrf domain wizard remember to change		when editing namelist.input in wrf domain wizard remember to change
	Run_Days, hours		Run_Days, hours
Line 67:		Line 76:
	set the Grib start and end date/times according to namelist.input requirements.		set the Grib start and end date/times according to namelist.input requirements.
	Then SAVE!!		Then SAVE!!
	~~Then Check the namelist.input and namelist.wps from terminal -- they should be consistent~~
	~~with the changes made.~~

	If a domain is reopened using Domain Wizard. Never say yes to the question "Regenerate wrf.input"		If a domain is reopened using Domain Wizard. Never say yes to the question "Regenerate wrf.input"
	If you do, all changes ~~are~~ lost.		If you do, all your changes will be lost!!


			=== Panoply ===

	~~Panoply~~
	~~------~~
	Currently panoply does not support dynamic zooming. Use the map tab of the created map to		Currently panoply does not support dynamic zooming. Use the map tab of the created map to
	manually ajust scaling and centering. When good set it in Preferences. Panoply will use these		manually ajust scaling and centering. When good set it in Preferences. Panoply will use these
Line 82:		Line 90:
	Remember the incompatibility of &dynamics section. However, the mywrf_modelcopy.bash takes care of this.		Remember the incompatibility of &dynamics section. However, the mywrf_modelcopy.bash takes care of this.

	~~GRIB Files~~
	~~----------~~
	~~Best place to put downloaded grib files is the share directory. Downloading can be done in windows too.~~

	~~</nowiki></pre>~~		=== GRIB Files ===

			Best place to put downloaded grib files is the share directory. Downloading can be done in windows. Just download the files and copy them to the share directory.

	==A good starting options for a WRF simulation==		==A good starting options for a WRF simulation==

Root: /* How to use your system */

2010-09-29T09:31:10Z

How to use your system

← Older revision		Revision as of 09:31, 29 September 2010
Line 24:		Line 24:

	As was mentioned before, WRF model is meant to be operated within a UNIX/Linux operating system. However, we'll attempt to run most of the pre-processing tasks from Windows (accessing your VMWare sysem remotely) and will venture into Linux (VMWare system) to do the actual model running and post-processing only.		As was mentioned before, WRF model is meant to be operated within a UNIX/Linux operating system. However, we'll attempt to run most of the pre-processing tasks from Windows (accessing your VMWare sysem remotely) and will venture into Linux (VMWare system) to do the actual model running and post-processing only.
	Make sure your share directory works properly. If not re-enable sharing and specify a share directory from Virtual Machine->Virtual Machine Settings-> Options->Shared ~~Foloders~~ menu on top of you WMWare window. Shared folder is needed to exchange data between windows (host) and Linux (VMWare guest)		Make sure your share directory works properly. If not re-enable sharing and specify a share directory from Virtual Machine->Virtual Machine Settings-> Options->Shared Folders menu on top of you WMWare window. Shared folder is needed to exchange data between windows (host) and Linux (VMWare guest)

	Running WRF		Running WRF
Line 70:		Line 70:
	with the changes made.		with the changes made.

	If a domain is ~~reopend~~ using Domain Wizard. Never say yes to the question "Regenerate wrf.input"		If a domain is reopened using Domain Wizard. Never say yes to the question "Regenerate wrf.input"
	If you do, all changes are lost.		If you do, all changes are lost.

	Panoply		Panoply
	------		------
	~~Currenty~~ panoply does not support dynamic zooming. Use the map tab of the created map to		Currently panoply does not support dynamic zooming. Use the map tab of the created map to
	manually ajust scaling and centering. When good set it in Preferences. Panoply will use these		manually ajust scaling and centering. When good set it in Preferences. Panoply will use these
	settings in the future.		settings in the future.

Root: /* How to use your system */

2010-09-29T09:30:24Z

How to use your system

← Older revision		Revision as of 09:30, 29 September 2010
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	and REMEMBER to Save (Action -> Save)		and REMEMBER to Save (Action -> Save)

	In the Run Preprocessors page, link the grib files. REMEMBER to set the Grib start and end date/times according to namelist.input requirements. Then SAVE!!		In the Run Preprocessors page, link the grib files. REMEMBER to
	Then Check the namelist.input and namelist.wps from terminal -- they should be ~~consistant~~ with the changes made.		set the Grib start and end date/times according to namelist.input requirements.
			Then SAVE!!
			Then Check the namelist.input and namelist.wps from terminal -- they should be consistent
			with the changes made.

	If a domain is reopend using Domain Wizard. Never say yes to the question "Regenerate wrf.input"		If a domain is reopend using Domain Wizard. Never say yes to the question "Regenerate wrf.input"

Root: /* How to use your system */

2010-09-29T09:29:45Z

How to use your system

← Older revision		Revision as of 09:29, 29 September 2010
Line 67:		Line 67:
	Then Check the namelist.input and namelist.wps from terminal -- they should be consistant with the changes made.		Then Check the namelist.input and namelist.wps from terminal -- they should be consistant with the changes made.

	If a domain is reopend using Domain Wizard. Never say yes to the question "Regenerate wrf.input" If you do, all changes are lost.		If a domain is reopend using Domain Wizard. Never say yes to the question "Regenerate wrf.input"
			If you do, all changes are lost.

	Panoply		Panoply
	------		------
	Currenty panoply does not support dynamic zooming. Use the map tab of the created map to manually ajust scaling and centering. When good set it in Preferences. Panoply will use these settings in the future.		Currenty panoply does not support dynamic zooming. Use the map tab of the created map to
			manually ajust scaling and centering. When good set it in Preferences. Panoply will use these
			settings in the future.

	Notes:		Notes:

Root: /* How to use your system */

2010-09-29T09:27:57Z

How to use your system

← Older revision		Revision as of 09:27, 29 September 2010
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	Geography: /home/wrf/geog		Geography: /home/wrf/geog
	Domains: /home/wrf/work		Domains: /home/wrf/work
	3. Read the section "idiosyncrasies of Domain Wizard". Then do the pre-processing (geogrid, ungrib, metgrid) from within domain wizard.		3. Read the section "idiosyncrasies of Domain Wizard". Then do the pre-processing (geogrid, ungrib,
			metgrid) from within domain wizard.
	4. Now go to the linux machine.		4. Now go to the linux machine.

	5. run mywrf_modelcopy.bash <domainname> from the directory of your domain (~/work/<yourdomainname>). This will create a directory WRFV3 under it. Change directory to ./WRFV3/test/em_real		5. run mywrf_modelcopy.bash <domainname> from the directory of your domain (~/work/<yourdomainname>).
	6. In the namelist.input make sure that if there is a entry dyn_opt under &dynamics the entry is commented (!). This may be a bug in the system!		This will create a directory WRFV3 under it. Change directory to ./WRFV3/test/em_real
			6. In the namelist.input make sure that if there is a entry dyn_opt under &dynamics the entry is
			commented (!). This may be a bug in the system!
	7. run ./real.exe, then check if the run is successfull (check the rsl* files)		7. run ./real.exe, then check if the run is successfull (check the rsl* files)
	8. If that is successful, then run WRF model by ./wrf.run.bash		8. If that is successful, then run WRF model by ./wrf.run.bash

Root: /* Some good starting points -- NCAR's experience */

2010-09-27T09:10:22Z

Some good starting points -- NCAR's experience

← Older revision		Revision as of 09:10, 27 September 2010
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	==Some good starting points -- NCAR's experience==		==Some good starting points -- NCAR's experience==
			(After NCAR, [http://www.mmm.ucar.edu/wrf/users/docs/user_guide_V3/users_guide_chap5.htm#examples])
	Examples of namelist for various applications		Examples of namelist for various applications
	A few physics options sets (plus model top and number of vertical levels) are provided here for reference. They may provide a good starting point for testing the model in your application. Also note that other factors will affect the outcome. For example, the domain setup, the distributions of vertical model levels, and input data.		A few physics options sets (plus model top and number of vertical levels) are provided here for reference. They may provide a good starting point for testing the model in your application. Also note that other factors will affect the outcome. For example, the domain setup, the distributions of vertical model levels, and input data.

Root: /* Flash Floods in Hannibal, Missouri -- Mark Twains Home Town */

2010-09-27T09:09:49Z

Flash Floods in Hannibal, Missouri -- Mark Twains Home Town

← Older revision		Revision as of 09:09, 27 September 2010
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	:Bowling Green: 5.2 inches.		:Bowling Green: 5.2 inches.
	:Louisiana: 5 inches		:Louisiana: 5 inches

			==Some good starting points -- NCAR's experience==

			Examples of namelist for various applications
			A few physics options sets (plus model top and number of vertical levels) are provided here for reference. They may provide a good starting point for testing the model in your application. Also note that other factors will affect the outcome. For example, the domain setup, the distributions of vertical model levels, and input data.
			a. 1 – 4 km grid distances, convection-permitting runs for 1- 3 days run (as used for NCAR spring real-time convection forecast over US):
			<nowiki>
			</nowiki><pre><nowiki>
			mp_physics = 8,
			ra_lw_physics = 1,
			ra_sw_physics = 2,
			radt = 10,
			sf_sfclay_physics = 2,
			sf_surface_physics = 2,
			bl_pbl_physics = 2,
			bldt = 0,
			cu_physics = 0,
			ptop_requested = 5000,
			e_vert = 35,
			</nowiki></pre>
			b. 20 – 30 km grid distances, 1- 3 day runs (e.g., NCAR daily real-time runs over US):
			<nowiki>
			</nowiki><pre><nowiki>
			mp_physics = 4,
			ra_lw_physics = 1,
			ra_sw_physics = 2,
			radt = 10,
			sf_sfclay_physics = 2,
			sf_surface_physics = 2,
			bl_pbl_physics = 2,
			bldt = 0,
			cu_physics = 5,
			cudt = 0,
			ptop_requested = 5000,
			e_vert = 30,
			</nowiki></pre>
			c. Cold region 15 – 45 km grid sizes (e.g. used in NCAR’s Antarctic Mesoscale Prediction System):
			<nowiki>
			</nowiki><pre><nowiki>
			mp_physics = 4,
			ra_lw_physics = 1,
			ra_sw_physics = 2,
			radt = 10,
			sf_sfclay_physics = 2,
			sf_surface_physics = 2,
			bl_pbl_physics = 2,
			bldt = 0,
			cu_physics = 1,
			cudt = 5,
			fractional_seaice = 1,
			seaice_threshold = 0.0,
			ptop_requested = 1000,
			e_vert = 44,
			</nowiki></pre>
			d. Hurricane applications (e.g. 12, 4 and 1.33 km nesting used by NCAR’s real-time hurricane runs):
			<nowiki>
			</nowiki><pre><nowiki>
			mp_physics = 8,
			ra_lw_physics = 1,
			ra_sw_physics = 2,
			radt = 10,
			sf_sfclay_physics = 1,
			sf_surface_physics = 1,
			bl_pbl_physics = 1,
			bldt = 0,
			cu_physics = 1, (only on 12 km grid)
			cudt = 5,
			isftcflx = 2,
			ptop_requested = 2000,
			e_vert = 36,
			</nowiki></pre>
			e. Regional climate case at 10 – 30 km grid sizes (e.g. used in NCAR’s regional climate runs):
			<nowiki>
			</nowiki><pre><nowiki>
			mp_physics = 6,
			ra_lw_physics = 3,
			ra_sw_physics = 3,
			radt = 30,
			sf_sfclay_physics = 1,
			sf_surface_physics = 2,
			bl_pbl_physics = 1,
			bldt = 0,
			cu_physics = 1,
			cudt = 5,
			sst_update = 1,
			tmn_update = 1,
			sst_skin = 1,
			bucket_mm = 100.0,
			bucket_J = 1.e9,
			ptop_requested = 1000,
			e_vert = 51,
			spec_bdy_width = 10,
			spec_zone = 1,
			relax_zone = 9,
			spec_exp = 0.33,
			</nowiki></pre>

Root: /* Flash Floods in Hannibal, Missouri -- Mark Twains Home Town */

2010-09-27T09:06:49Z

Flash Floods in Hannibal, Missouri -- Mark Twains Home Town

← Older revision		Revision as of 09:06, 27 September 2010
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	* Cumulus Parameterization (cu_physics) use Grell 3D (Option 5)		* Cumulus Parameterization (cu_physics) use Grell 3D (Option 5)
	==Flash Floods in Hannibal, Missouri -- Mark Twains Home Town==		==Flash Floods in Hannibal, Missouri -- Mark Twains Home Town==
	{{box~~\|right~~\|"The rain is famous for falling on the just and unjust alike, but if I had the management of such affairs I would rain softly and sweetly on the just, but if I caught a sample of the unjust out doors I would drown him"		{{box\|"The rain is famous for falling on the just and unjust alike, but if I had the management of such affairs I would rain softly and sweetly on the just, but if I caught a sample of the unjust out doors I would drown him"
	''-- Mark Twain''}}		''-- Mark Twain''}}
	* map [http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Shelbyville,+Shelby,+Missouri+63469&sll=39.681826,-91.333466&sspn=0.46397,1.157684&ie=UTF8&cd=1&geocode=FbBjXwIdpo6D-g&split=0&hq=&hnear=Shelbyville,+Shelby,+Missouri&ll=39.67337,-91.296387&spn=0.928044,2.315369&t=h&z=9]		* map [http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Shelbyville,+Shelby,+Missouri+63469&sll=39.681826,-91.333466&sspn=0.46397,1.157684&ie=UTF8&cd=1&geocode=FbBjXwIdpo6D-g&split=0&hq=&hnear=Shelbyville,+Shelby,+Missouri&ll=39.67337,-91.296387&spn=0.928044,2.315369&t=h&z=9]

Root: /* Flash Floods in Hannibal, Missouri -- Mark Twains Home Town */

2010-09-27T09:06:28Z

Flash Floods in Hannibal, Missouri -- Mark Twains Home Town

← Older revision		Revision as of 09:06, 27 September 2010
Line 83:		Line 83:
	* Cumulus Parameterization (cu_physics) use Grell 3D (Option 5)		* Cumulus Parameterization (cu_physics) use Grell 3D (Option 5)
	==Flash Floods in Hannibal, Missouri -- Mark Twains Home Town==		==Flash Floods in Hannibal, Missouri -- Mark Twains Home Town==
	{{box\|"The rain is famous for falling on the just and unjust alike, but if I had the management of such affairs I would rain softly and sweetly on the just, but if I caught a sample of the unjust out doors I would drown him"		{{box\|right\|"The rain is famous for falling on the just and unjust alike, but if I had the management of such affairs I would rain softly and sweetly on the just, but if I caught a sample of the unjust out doors I would drown him"
	''-- Mark Twain''}}		''-- Mark Twain''}}
	* map [http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Shelbyville,+Shelby,+Missouri+63469&sll=39.681826,-91.333466&sspn=0.46397,1.157684&ie=UTF8&cd=1&geocode=FbBjXwIdpo6D-g&split=0&hq=&hnear=Shelbyville,+Shelby,+Missouri&ll=39.67337,-91.296387&spn=0.928044,2.315369&t=h&z=9]		* map [http://maps.google.com/maps?f=q&source=s_q&hl=en&q=Shelbyville,+Shelby,+Missouri+63469&sll=39.681826,-91.333466&sspn=0.46397,1.157684&ie=UTF8&cd=1&geocode=FbBjXwIdpo6D-g&split=0&hq=&hnear=Shelbyville,+Shelby,+Missouri&ll=39.67337,-91.296387&spn=0.928044,2.315369&t=h&z=9]