Main menu

Navigation

Orbital parameters for 30Ma

3 posts / 0 new
Last post
010022009074@...
Orbital parameters for 30Ma

Dear all:

I am using CESM1.0.4 to model the climate in 30Ma, but I can't find the place to modify the orbital parameters, such as orb_eccen, orb_obliq and orb_mvlep.

Is there anywhere to modify those varaities? Or which other options should I modify to change the orbital parameter to 30Ma since it is > 1Ma?

 

Waiting for your reply sincerely

Thanks!

 

 

Taily Zhang

nanr

In cesm1.0.x these parameters will be set in Buildconf/cpl.buildnml.csh. 

orb_iyear (int)

year of orbit, used when orb_mode is fixed_year or variable_year. set by ORBITAL_YEAR in env_run.xml. default=unset

orb_iyear_align (int)

model year associated with orb_iyear when orb_mode is variable_year. set by ORBITAL_YEAR_ALIGN in env_run.xml. default=unset

orb_eccen (r8)

eccentricity of orbit, used when orb_mode is fixed_parameters. default=unset

orb_mvelp (r8)

location of vernal equinox in longitude degrees, used when orb_mode is fixed_parameters. default=unset

orb_obliq (r8)

obliquity of orbit in degrees, used when orb_mode is fixed_parameters. default=unset

For further reference, the cesm1.1 model settings are here:

-- http://www.cesm.ucar.edu/models/cesm1.1/cesm/doc/modelnl/nl_drv.html

 

 

010022009074@...

     Thanks for your replying.

     I still can't find vars orb_eccen, orb_mvelp and orb_obliq. On the website you gave me above, it is said "Not currently used in build-namelist". What does it mean?

 

    Thanks!

   Taily Zhang

Log in or register to post comments

Who's new

  • 20171204300@...
  • poornadurga.g@...
  • lina.boljka@...
  • nuistwangjing@...
  • vineetm@...