pmip3:design:lm:final
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pmip3:design:lm:final [2009/12/21 22:27] gavin |
pmip3:design:lm:final [2010/08/02 14:00] jypeter Corrected links that were pointing to the LM "discussion" page rather than this "final" page |
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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]] | | | + | | Orbital parameters | Annually varying\\ [[final#orbital_forcing|Table provided (0-2100 CE/AD), if not internally calculated]] | | |
| | Date of vernal equinox | March 21 at Noon | | | | Date of vernal equinox | March 21 at Noon | | | ||
| - | | Trace gases | Annually varying (850-1850) ([[index#reconstructed_evolution_of_trace_gases|Table provided]]) | | | + | | Trace gases | Annually varying (850-1850) ([[final#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 in CMIP5 PI | | | 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 in CMIP5 PI | | | Aerosols | biomass burning changes???? | same as in CMIP5 PI | | ||
| - | | Vegetation | Land use conversion (forests to C3/C4 crops) (Pongratz, 2009, Foley and Ramunkutty)\\ Provided below | same as in CMIP5 PI | | + | | Vegetation | Land cover change (natural vegetation to crop/C3 pasture/C4 pasture)\\ (Pongratz et al., 2008; Ramankutty and Foley, 1999)\\ [[final#vegetation|Provided below]] | same as in CMIP5 PI | |
| | Ice sheets | No changes from Pre-Ind control | | | | Ice sheets | No changes from Pre-Ind control | | | ||
| | Topography and coastlines | same as in CMIP5 PI | | | | Topography and coastlines | same as in CMIP5 PI | | | ||
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| ==== Total Solar Irradiance ==== | ==== Total Solar Irradiance ==== | ||
| - | Multiple reconstructions of annual total solar irradiance are provided. These are designed to either fit smoothly with the reconstructions used in the post-1850 CMIP5 simulations (Wang, Lean and Sheely (2005)), or to explore independent estimates of the long term solar trends. Each series has an 11 year solar cycle throughout the time series (synthetic for pre-1610, based on a relationship between cycle magnitude and long-term TSI) and comes with an estimate of the spectral changes (as a function of the TSI anomaly). Each reconstruction is calibrated to the WLS modern values. | + | Multiple reconstructions of annual total solar irradiance are [[https://pmip3.lsce.ipsl.fr/share/design/lm/solar_Dec21.tar.gz | provided]]. These are designed to either fit smoothly with the reconstructions used in the post-1850 CMIP5 simulations (Wang, Lean and Sheely (2005)), or to explore independent estimates of the long term solar trends. Each series has an 11 year solar cycle throughout the time series (synthetic for pre-1610, based on a relationship between cycle magnitude and long-term TSI) and comes with an estimate of the spectral changes (as a function of the TSI anomaly). Each reconstruction is calibrated to the [[http://www.geo.fu-berlin.de/en/met/ag/strat/forschung/SOLARIS/Input_data/CMIP5_solar_irradiance.html | WLS modern values]]. See the [[https://pmip3.lsce.ipsl.fr/share/design/lm/README.txt | README.txt]] file for details of filenames and formats. |
| === Wang, Lean and Sheely (WLS): 1610-2000 CE === | === Wang, Lean and Sheely (WLS): 1610-2000 CE === | ||
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| Reconstruction based on a model of the open and closed magnetic flux including an estimate of the 11 yr cycle. We recommend patching this into the WLS w/background values in 1850. | Reconstruction based on a model of the open and closed magnetic flux including an estimate of the 11 yr cycle. We recommend patching this into the WLS w/background values in 1850. | ||
| - | Vieira, L.E.A., and S. Solanki (2009), Evolution of the solar magnetic flux on time scales of years to millenia, arXiv/0911.4396, doi:10.1051/0004-6361/200913276 | + | N.A. Krivova, L. Balmaceda and S.K. Solanki, (2007), Reconstruction of solar total irradiance since 1700 from the surface magnetic flux. Astronomy and Astrophysics, 467, 335-346.[[http://www.mps.mpg.de/homes/natalie/PAPERS/aa6725-06.pdf]] |
| + | |||
| + | Vieira, L.E.A., and S. Solanki (2009), Evolution of the solar magnetic flux on time scales of years to millenia, [[http://eprintweb.org/S/authors/All/so/Solanki/2 | arXiv/0911.4396]], doi:10.1051/0004-6361/200913276 | ||
| === Steinhilber, Beer, and Frohlich (SBF): 850-1849 CE === | === Steinhilber, Beer, and Frohlich (SBF): 850-1849 CE === | ||
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| Steinhilber, F., J. Beer, and C. Frohlich (2009), Total solar irradiance during the Holocene, Geophys. Res. Lett., 36, L19704, doi:10.1029/2009GL040142. | Steinhilber, F., J. Beer, and C. Frohlich (2009), Total solar irradiance during the Holocene, Geophys. Res. Lett., 36, L19704, doi:10.1029/2009GL040142. | ||
| + | |||
| + | ==== Solar-driven Ozone variations ==== | ||
| + | |||
| + | A parameterisation of ozone changes in the atmosphere (lat, lon, altitude) as a function of changing solar irradiance (including spectral variations) is available based on the results of Shindell et al (2006). Data file: [[http://www.giss.nasa.gov/staff/gschmidt/dO3_shindell | dO3_shindell]], data description: [[http://www.giss.nasa.gov/staff/gschmidt/ozone-feedback.txt | ozone-feedback.txt]]. | ||
| + | |||
| + | Shindell, D.T., G. Faluvegi, R.L. Miller, G.A. Schmidt, J.E. Hansen, and S. Sun, 2006: Solar and anthropogenic forcing of tropical hydrology. Geophys. Res. Lett., 33, L24706, doi:10.1029/2006GL027468,2006. [[http://pubs.giss.nasa.gov/docs/2006/2006_Shindell_etal_4.pdf]] | ||
| ==== Volcanic Forcings ==== | ==== Volcanic Forcings ==== | ||
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| Sensitivity experiments for the model response to the Pinatubo eruption yield an average global temperature change (0.4 K) comparable to observations. For the largest eruption of the last millennium, the 1258 AD eruption, a NH summer temperature anomaly over land of 1.2 K is found in agreement with reconstructions (Timmreck et al., 2009) | Sensitivity experiments for the model response to the Pinatubo eruption yield an average global temperature change (0.4 K) comparable to observations. For the largest eruption of the last millennium, the 1258 AD eruption, a NH summer temperature anomaly over land of 1.2 K is found in agreement with reconstructions (Timmreck et al., 2009) | ||
| + | |||
| + | The dataset is available in a {{:pmip3:design:lm:ici5_aod_reff_c.zip|zip file}}. | ||
| Crowley, T. et al. Volcanism and the Little Ice Age. PAGES Newsletter, 16, 22-23 (2008). | Crowley, T. et al. Volcanism and the Little Ice Age. PAGES Newsletter, 16, 22-23 (2008). | ||
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| | Model spin up | Same as in PI | | | | Model spin up | Same as in PI | | | ||
| + | ===== Links ===== | ||
| + | |||
| + | * PCMIP Project (**P**alaeo**C**arbon **M**odelling **I**ntercomparison **P**roject)\\ http://www.bridge.bris.ac.uk/projects/pcmip | ||
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| + | * CMIP5 (**C**oupled **M**odel **I**ntercomparison **P**roject Phase **5**)\\ http://cmip-pcmdi.llnl.gov/cmip5/ | ||
| \\ \\ \\ | \\ \\ \\ | ||
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| [ [[pmip3:|PMIP3 Wiki Home]] ] - | [ [[pmip3:|PMIP3 Wiki Home]] ] - | ||
| [ [[pmip3:wiki_help|Help!]] ] - | [ [[pmip3:wiki_help|Help!]] ] - | ||
| - | [ [[wiki:syntax|Wiki syntax]] ] | + | [ [[wiki:syntax|Wiki syntax]] ] <html><a name="page_bottom_tag"> </a></html> - [ [[final#page_top_tag|Top]] ] |
pmip3/design/lm/final.txt · Last modified: 2014/10/02 20:05 by kaplan
