Advanced Topics Mars PEM - Revision history

Jbclement: Replaced content with " Category:Planetary-Evolution-Model"

2026-02-26T17:08:55Z

Replaced content with " Category:Planetary-Evolution-Model"

Jbclement: /* Running the PEM in 1D */

2025-10-23T14:49:35Z

‎Running the PEM in 1D

Jbclement at 14:46, 23 October 2025

2025-10-23T14:46:35Z

Romain.vande: /* Choices of parameters (run_PEM.def) */

2023-06-29T09:45:37Z

‎Choices of parameters (run_PEM.def)

Romain.vande at 14:58, 12 May 2023

2023-05-12T14:58:04Z

Romain.vande at 14:52, 12 May 2023

2023-05-12T14:52:12Z

Romain.vande: Created page with "== Choices of parameters (run_PEM.def) == Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. For now, these are the p..."

2023-05-12T14:50:58Z

Created page with "== Choices of parameters (run_PEM.def) == Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. For now, these are the p..."

New page

== Choices of parameters (run_PEM.def) ==

Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. For now, these are the possible parameters:

'''General parameters for the run '''

* evol_orbit_pem: [Boolean] Do you want to follow an orbital forcing predefined (read in ob_ex_lsp.asc for example)? (default=false)
** If evol_orbit_pem is set to true, year_bp_ini needs to be specified
** year_bp_ini: [Integer] Number of (Earth) year before present to start the pem run if evol_orbit_pem=.true. , default=0
** var_obl: [Boolean] Do you want to vary the obliquity when following ob_ex_lsp.asc? Default =.true.
** var_ex: [Boolean] Do you want to vary the excenticity when following ob_ex_lsp.asc? Default =.true.
** var_lsp: [Boolean] Do you want to vary the ls perihelie when following ob_ex_lsp.asc? Default =.true.
* Max_iter_pem: [Integer] Maximal number of iteration if none of the stopping criterion is reached and if evol_orbit_pem=.false., default=99999999
* dt_pem: [Integer] Time step of the PEM in year, default=1
* ice_criterion: [Real] Acceptance rate of sublimating ice surface change, default=0.2
* ps_criterion: [Real] Acceptance rate of pressure surface change, default=0.15

'''Subsurface'''

* soil_pem: [Boolean]. Do you want to run with subsurface physical processes in the PEM? default=.true.
* adsorption_pem: [Boolean]. Do you want to run with adsoprtion in the PEM? default=.true.
* reg_thprop_dependp: [Boolean]. Do you want to modify the soil thermal properties with the pressure ? default=.false.
''Layering:''
* fluxgeo: [Real]. Value of the geothermal flux? default= 0.
* depth_breccia: [Real]. Depth at which the breccia layer begins? default= 50 m
* depth_bedrock: [Real]. Depth at which the bedrock layer begins? default= 1000 m

''' Reservoirs '''
* water_reservoir_nom: [Real]. Value of the available water in the subsurface. default =1e4 in kg/m^2

← Older revision		Revision as of 17:08, 26 February 2026
Line 1:		Line 1:
−	~~== Running the PEM with the launching script ==~~

−	~~The script ''launchPEM.sh'' can take an argument:~~
−	~~# If there is no argument, then the script initiates a PEM simulation from scratch.~~
−	~~# If the argument is 're', then the script relaunches an existing PEM simulation. It will ask for parameters to know the starting point that you want to.~~
−
−	~~== Running the PEM in 1D ==~~
−
−	One can run the PEM in a single column configuration, i.e. as a 1D model. Compilation is done using the [[The makelmdz fcm GCM Compilation Script\|makelmdz_fcm]] script except that only a number of vertical layers needs be specified. For example, to compile a version of 32 vertical layers, one would run the following command:
−	~~<pre>~~
−	~~./makelmdz_fcm -arch somearch -p mars -d 32 -j 8 pem~~
−	~~</pre>~~
−
−	~~To work with the 1D PEM, you must use the related PCM in 1D. For example, for the Mars PCM, see [[Mars 1D testphys1d program]].~~

	[[Category:Planetary-Evolution-Model]]		[[Category:Planetary-Evolution-Model]]

@@ Line 11: / Line 11: @@
 ./makelmdz_fcm -arch somearch -p mars -d 32 -j 8 pem
 </pre>
 [[Category:Planetary-Evolution-Model]]

@@ Line 1: / Line 1: @@
-== Generic physic PEM ==
+== Running the PEM with the launching script ==
-== Choices of parameters (run_PEM.def) ==
+The script ''launchPEM.sh'' can take an argument:
-Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. run_PEM.def file can be found in LMDZ.MARS/deftank/pem. For now, these are the possible parameters:
+== Running the PEM in 1D ==
 [[Category:Planetary-Evolution-Model]]

← Older revision		Revision as of 09:45, 29 June 2023
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	== Choices of parameters (run_PEM.def) ==		== Choices of parameters (run_PEM.def) ==

−	Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. For now, these are the possible parameters:	+	Parameters of the PEM run can be specified in run_PEM.def. This file is included at the end of the run.def. run_PEM.def file can be found in LMDZ.MARS/deftank/pem. For now, these are the possible parameters:

← Older revision		Revision as of 14:58, 12 May 2023
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	''' Reservoirs '''		''' Reservoirs '''
	* water_reservoir_nom: [Real]. Value of the available water in the subsurface. default =1e4 in kg/m^2		* water_reservoir_nom: [Real]. Value of the available water in the subsurface. default =1e4 in kg/m^2
		+
		+
		+	[[Category:Planetary-Evolution-Model]]

← Older revision		Revision as of 14:52, 12 May 2023
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		+	== Generic physic PEM ==
		+
	== Choices of parameters (run_PEM.def) ==		== Choices of parameters (run_PEM.def) ==