pmip3:design:lm:final
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pmip3:design:lm:final [2009/12/07 15:48] pasb created |
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| + | //Go to =>// [ [[pmip3:design:pi:final|PI]] ] - [ [[pmip3:design:6k:final|6ka]] ] - [ [[pmip3:design:21ka:final|21ka]] ] - [ **LM** ] | ||
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| ====== Last Millennium Experimental Design ====== | ====== Last Millennium Experimental Design ====== | ||
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| ^ ^ PMIP3 ^ Alternative solution ^ | ^ ^ PMIP3 ^ Alternative solution ^ | ||
| - | | Orbital parameters | Annually varying\\ [[index#orbital_forcing|Table provided (0-2100 CE/AD), if not internally calculated]] | same as Pre-Ind CMIP5 control | | + | | Orbital parameters | Annually varying\\ [[index#orbital_forcing|Table provided (0-2100 CE/AD), if not internally calculated]] | | |
| - | | Date of vernal equinox | Mar 21 hr 0 | same as CMIP5 control | | + | | Date of vernal equinox | March 21 at Noon | | |
| - | | Trace gases | Annually varying (850-1850) ([[index#reconstructed_evolution_of_trace_gases|Table provided]]) | constant at CMIP5 PI levels | | + | | Trace gases | Annually varying (850-1850) ([[index#reconstructed_evolution_of_trace_gases|Table provided]]) | | |
| | Volcanic Aerosols | Multiple reconstructions (of AOD, Effective Radius, Mass) | | | | Volcanic Aerosols | Multiple reconstructions (of AOD, Effective Radius, Mass) | | | ||
| | Solar irradiance | choose at least one between Multiple reconstructions provided below | | | | Solar irradiance | choose at least one between Multiple reconstructions provided below | | | ||
| - | | Ozone | solar related variations (parameterised as function of change in solar irradiance - Drew Shindell) | same as pre-Ind control | | + | | Ozone | solar related variations (parameterised as function of change in solar irradiance - Drew Shindell) | same as in CMIP5 PI | |
| - | | Aerosols | biomass burning changes???? | same as pre-Ind control | | + | | Aerosols | biomass burning changes???? | same as in CMIP5 PI | |
| - | | Vegetation | Land use conversion (forests to C3/C4 crops) (Pongratz, 2009, Foley and Ramunkutty)\\ Available from WDCC-Hamburg\\ (http://cera-www.dkrz.de/WDCC/ui/Entry.jsp?acronym=LAND_COV_scen_800_1699) | No change from Pre-Ind control | | + | | Vegetation | Land use conversion (forests to C3/C4 crops) (Pongratz, 2009, Foley and Ramunkutty)\\ Available from WDCC-Hamburg\\ (http://cera-www.dkrz.de/WDCC/ui/Entry.jsp?acronym=LAND_COV_scen_800_1699) | same as in CMIP5 PI | |
| | Ice sheets | No changes from Pre-Ind control | | | | Ice sheets | No changes from Pre-Ind control | | | ||
| - | | Topography and coastlines | No change from Pre-Ind control | | | + | | Topography and coastlines | same as in CMIP5 PI | | |
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| - | Please use the [[index#page_bottom_tag|discussion]] panel to **comment** this table! | ||
| - | ===== Initial conditions ===== | ||
| - | ===== Additional information ===== | ||
| ==== Total Solar Irradiance ==== | ==== Total Solar Irradiance ==== | ||
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| | OBL | 23.697 - 0.000128 * Year | | | OBL | 23.697 - 0.000128 * Year | | ||
| | PERI-180 | 68.79 + 0.0170 * Year | | | PERI-180 | 68.79 + 0.0170 * Year | | ||
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| + | ==== Vegetation ==== | ||
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| + | Anthropogenic land cover change is considered by applying the reconstruction of global agricultural areas and land cover (Pongratz et al., 2008). | ||
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| + | The global maps with a spatial resolution of 0.5° and an annual timescale contain 14 vegetation types and discriminate between the agricultural categories cropland, and C3 and C4 pastures. The reconstruction merges published maps of agriculture from AD1700 to 1992 and a population-based approach to quantify agriculture from AD 800 to 1700. | ||
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| + | The data set can be obtained from the World Data Center for Climate (doi:10.1594/WDCC/RECON_LAND_COVER_800-1992). | ||
| + | Pongratz, J., Reick, C.H., Raddatz, T. & Claussen, M. A reconstruction of global agricultural areas and land cover for the last millennium. Global Biogeochem. Cycles, 22, GB3018, doi:10.1029/2007GB003153 (2008). | ||
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| + | ===== Initial conditions ===== | ||
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| + | ^ ^ PMIP3 ^ Alternative solution ^ | ||
| + | | Initial conditions | Branch off PI after adjustment | Same as in PI | | ||
| + | | Model spin up | Same as in PI | | | ||
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pmip3/design/lm/final.txt · Last modified: 2014/10/02 20:05 by kaplan
