Differences

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--- pmip3:design:lm:index [2009/07/09 22:43] – ammann
+++ pmip3:design:lm:index [2009/08/02 01:24] – gavin
@@ Line 16: / Line 16: @@
 ^      ^   PMIP3  ^  Alternative solution  ^
-|  Orbital parameters  |  Annually varying (850-1850) |  1850 values or same Pre-Ind CMIP5 control |
+|  Orbital parameters  |  Annually varying (850-1850) (Table provided if not internally calculated)  |  1850 values or same as Pre-Ind CMIP5 control [ **ecc** =  ] - [ **obl** = ° ] - [ **peri-180°** = ° ]  |
-|                |   Table provided if not internally calculated |[ **ecc** =  ] - [ **obl** = ° ] - [ **peri-180°** = ° ]  |
+|  Date of vernal equinox  |  Mar 21 hr 0  |  same as CMIP5 control |
-|  Date of vernal equinox  | Mar 21 hr 0  | same as CMIP5 control |
+|  Trace gases  |  Annually varying (850-1850) (Table provided)  |  constant at CMIP5 control levels  [ **CO<sub>2</sub>** =  ppm ] - [ **CH<sub>4</sub>** =  ppb ] - [ **N<sub>2</sub>O** =  ppb ] - [ **CFC** =  ] - [ **O<sub>3</sub>** =  ]  |
-|  Trace gases  |  Annually varying (850-1850) | constant at CMIP5 control levels |
+|  Volcanic Aerosols  |  Multiple reconstructions (of AOD, Effective Radius, Mass)  |   |
-|               |  Table provided | [ **CO<sub>2</sub>** =  ppm ] - [ **CH<sub>4</sub>** =  ppb ] - [ **N<sub>2</sub>O** =  ppb ] - [ **CFC** =  ] - [ **O<sub>3</sub>** =  ]  |
+|  Solar irradiance  |  Multiple reconstructions (default TBD)  |    |
-|  Volcanic Aerosols  |    | |
+|   Ozone    |  solar related variations (parameterised as function of change in solar irradiance - Drew Shindell)  |  same as pre-Ind control  |
-|    | |  |
+|  Aerosols  |  biomass burning changes????   |  same as pre-Ind control  |
-|  Solar irradiance  |  W/m<sup>2</sup>  |    |
+|  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  |
-|  Aerosols  |    | |
-|  Vegetation      | Land use conversion (forests to C3/C4 crops) (Pongratz, 2008, Foley and Ramunkutty)   |  No change from Pre-Ind control   |
-|                  | available from WDCC-Hamburg (URL?)   |   |
 |  Ice sheets      |  No changes from Pre-Ind control  |    |
-|  Topography and coastlines  | No change from Pre-Ind control   |    |
+|  Topography and coastlines  |  No change from Pre-Ind control   |    |
 Please use the [[index#page_bottom_tag|discussion]] panel to **comment** this table!
@@ Line 47: / Line 44: @@
 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).
+Candidate reconstructions: Krivova, Steinhilber, new Bard?, (TBD)
+==== Volcanic Forcings ====
+Issues: compatability of eff. rad, zonality, height distribution with modern satellite (Sato) data.
+Candidate datasets: Crowley, Ammann - differences in thresholds for significant eruptions, peak forcing etc. Need merged/consistent fields. (Ammann)
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