pmip3:design:lm:final
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pmip3:design:lm:final [2009/12/21 20:47] pasb |
pmip3:design:lm:final [2009/12/21 22:21] gavin |
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| - | //Go to =>// [ [[pmip3:design:pi:final|PI]] ] - [ [[pmip3:design:6k:final|6ka]] ] - [ [[pmip3:design:21ka:final|21ka]] ] - [ **LM** ] | + | //Go to =>// [ [[pmip3:design:pi:final|PI]] ] - [ [[pmip3:design:6k:final|6ka]] ] - [ [[pmip3:design:21k:final|21ka]] ] - [ **LM** ] |
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| ==== Total Solar Irradiance ==== | ==== Total Solar Irradiance ==== | ||
| + | Multiple reconstructions of total solar irradiance are provided. These are designed to either fit smoothly with the reconstructions used in the post-1850 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. | ||
| - | The following figure (click to get the full-size image) has been provided by [[johann.jungclaus@zmaw.de|Johann Jungclaus]] (MPI-M Hamburg) | + | === Wang, Lean and Sheely: 1610-2000 === |
| - | {{:pmip3:design:lm:xsolarpag.png?500|Click to get the full-size image}} | + | Spectral reconstruction based on a flux transport model of the open and closed flux using the observed sunspot record as the main input. This comes in two versions, A) a "no-background" version that just has TSI variations similar to that seen over a solar cycle today, and B) a "with background" version with longer term trends in the solar minimum. |
| - | Time series of TSI (Wm-2) from 800AD to 2000. For the COSMOS (MPI-M) | + | === Delaygue and Bard: 850-1609 === |
| - | Millennium simulations (black curve), a 11 year cycle was added for consistency over the | + | |
| - | entire period. | + | |
| - | Notes: We will impose an 11 year cycle on pre-sunspot reconstructions for consistency of the spectrum of natural variability. Additionally, we will give a spectral set of irradiance changes based on modern variability observed by satellite (Lean). | + | Reconstruction based on an Antarctica stack of 10Be records scaled linearly to the modern-to-Maunder Minimum TSI in the two WLS reconstructions. |
| - | Candidate reconstructions: Krivova, Steinhilber, new Bard?, (TBD) | + | === Muscheler, Joos, Beer, Müller, Vonmoos and Snowball (2007): 850-1609 === |
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| + | Reconstruction based on the 14C record scaled based on an inverse regression to the two WLS reconstructions. | ||
| + | |||
| + | === Vieira, Krivova and Solanki: 850-1849 === | ||
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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. | ||
| + | |||
| + | === Steinhilber, Beer, and Frohlich: 850-1849 === | ||
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| + | Reconstruction based on a Greenland 10Be core and a different model of solar flux. 11yr cycle is synthetic. We recommend patching this into the WLS w/background values in 1850. | ||
| + | |||
| + | == References == | ||
| + | |||
| + | Lean J, ["Calculations of Solar Irradiance" http://www.geo.fu-berlin.de/en/met/ag/strat/forschung/SOLARIS/Input_data/Calculations_of_Solar_Irradiance.pdf] | ||
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| + | Delaygue, G and E. Bard, (2009), Solar forcing based on Be-10 in Antarctica ice over the past millennium and beyond, EGU 2009 General Assembly, [#EGU2009-6943, http://meetingorganizer.copernicus.org/EGU2009/EGU2009-6943.pdf] | ||
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| + | Muscheler, R., F. Joos, J. Beer, S.A. Müller, M. Vonmoos, and I. Snowball (2007), Solar activity during the last 1000 yr inferred from radionuclide records Quaternary Science Reviews, Vol. 26, pp. 82-97. doi:10.1016/j.quascirev.2006.07.012 | ||
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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. | ||
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| + | 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 | ||
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| + | Wang, Y.-M., J. L. Lean, and N. R. Sheeley, Jr. (2005), Modeling the Sun’s Magnetic Field and Irradiance since 1713, ApJ, 625, 522–538, doi:10.1086/429689. | ||
| ==== Volcanic Forcings ==== | ==== Volcanic Forcings ==== | ||
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| Two alternative data sets are provided below. It is up to the groups to choose the Gao-Robock-Amann or the Crowley reconstruction for their last millenium simulation. | Two alternative data sets are provided below. It is up to the groups to choose the Gao-Robock-Amann or the Crowley reconstruction for their last millenium simulation. | ||
| - | ==== The Gao-Robock-Ammann data set ==== | + | === The Gao-Robock-Ammann data set === |
| Time series of global hemispheric total stratospheric sulphate injections from volcanic eruptions for the past 1500 years as well as estimates of stratospheric loading as a function of latitude, altitude, and month are available from | Time series of global hemispheric total stratospheric sulphate injections from volcanic eruptions for the past 1500 years as well as estimates of stratospheric loading as a function of latitude, altitude, and month are available from | ||
pmip3/design/lm/final.txt · Last modified: 2014/10/02 20:05 by kaplan
