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pmip3:design:li:index [2010/07/29 11:58] lunt |
pmip3:design:li:index [2010/09/09 08:01] lunt |
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===== Goal ===== | ===== Goal ===== | ||
- | Run **early Eemian**, **mid-Eemian** and **glacial inception** snap shots. This will allow us to model the response to obliquity maximum (//130ka//) and minimum (//115ka//), and near precession optimum for ITCZ shift, ENSO and tropical monsoons (//125ka//) | + | Run **early Eemian**, **mid-Eemian** and **glacial inception** snap shots. This will allow us to model the high latitude response to obliquity maximum (//130ka//) and minimum (//115ka//), and near precession optimum for ITCZ shift, ENSO and tropical monsoons (//125ka//) |
==== Core experiments ==== | ==== Core experiments ==== | ||
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^ ^ PMIP3 ^ Alternative solution ^ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
- | | Orbital parameters | varying, model interpolates values given on a 1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/orbit_pmip.out | | | + | | Orbital parameters | varying, model interpolates values given on a 1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/orbit_pmip.out Values are given for 132-115ka. | | |
| Date of vernal equinox | March 21 at noon | | | | Date of vernal equinox | March 21 at noon | | | ||
- | | Trace gases | varying, model interpolates values given on a 0.1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/pmip_hol_lig_gases.txt | | | + | | Trace gases | varying, model interpolates values given on a 0.1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/pmip_hol_lig_gases.txt Values are given for 132-115ka. | | |
| Aerosols | Same as PI | | | | Aerosols | Same as PI | | | ||
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^ ^ PMIP3 ^ Alternative solution ^ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
- | | Orbital parameters | varying, model interpolates values given on a 1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/orbit_pmip.out | | | + | | Orbital parameters | varying, model interpolates values given on a 1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/orbit_pmip.out Values are given for 10-0ka. | | |
| Date of vernal equinox | March 21 at noon | | | | Date of vernal equinox | March 21 at noon | | | ||
- | | Trace gases | varying, model interpolates values given on a 0.1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/pmip_hol_lig_gases.txt | | | + | | Trace gases | varying, model interpolates values given on a 0.1k resolution. See values here: http://www.paleo.bris.ac.uk/~ggdjl/pmip/pmip_hol_lig_gases.txt Values are given for 10-0ka. | | |
| Aerosols | Same as PI | | | | Aerosols | Same as PI | | | ||
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For transients: | For transients: | ||
- | ^ ^ PMIP3 ^ Alternative solution ^ Alternative solution' ^ | + | ^ ^ PMIP3 ^ Alternative solution ^ |
- | | Initial conditions | Branch off PI after adjustment | Same as in PI | | | + | | Initial conditions | Branch off PI after adjustment | Same as in PI | |
- | | Model spin up | 2kyr or less before transient starts | Same as in PI | | | + | | Model spin up | 2kyr or less before transient starts | Same as in PI | |
For initial conditions, and especially spinup, the key thing is to document what you do! | For initial conditions, and especially spinup, the key thing is to document what you do! | ||
+ | |||
+ | For the transient simulations, orbits and trace gas values are given for up to 2ky before the start date of the simulation. | ||
===== Participating groups ===== | ===== Participating groups ===== |