Model: MPI-UW coupled ESM (ECHAM3/LSG2/HAMOCC3/LPJ)

atmosphere:             ECHAM3 AGCM, T21 resolution, 19 levels
ocean:                  LSG2 OGCM, 64x64 resolution on Arakawa E, 22 levels
marine biogeochemistry: HAMOCC3, resolution as ocean
vegetation:             LPJ, resolution as atmosphere
ice sheets:             prescribed, SICOPOLIS available


periodically-synchronous coupling

Reference:
Mikolajewicz, U., Gröger, M., Maier-Reimer, E., Schurgers, G.,
Vizcaino, M.  and Winguth, A. (2007): Long-term effects of
anthropogenic CO2 emissions simulated with a complex earth system
model. Climate Dynamics 28(6), 599-633, DOI:10.1007/s00382-006-0204-y.



related publications:

Schurgers, G., U. Mikolajewicz, M. Gröger, E. Maier-Reimer,
M. Vizcaino and A. Winguth (): Long-term effects of biogeophysical and
biogeochemical interactions between terrestrial biosphere and climate
under anthropogenic climate change. Global and Planetary Change
(acc.).

Schurgers, G., U. Mikolajewicz, M. Gröger, E. Maier-Reimer,
M. Vizcaino and A. Winguth (2006).  Changes in terrestrial carbon
storage during interglacials: a comparison between Eemian and
Holocene. Climate of the Past 2, 205-220
www.clim-past.net/2/205/2006/cp-2-205-2006.html 

Schurgers, G. (2006): Long-term interactions between vegetation and
climate -- Model simulations for past and future. Berichte zur
Erdsystemforschung 27. 
http://www.mpimet.mpg.de/fileadmin/publikationen/Reports/BzE_27.pdf

Winguth, A., Mikolajewicz, U., Gröger, M., Maier-Reimer, E.,
Schurgers, G., and Vizcaino, M. (2005): Centennial-scale interactions
between the carbon cycle and anthropogenic climate change using a
dynamic Earth system model Geophys. Res. Letters, 32,L23714,
doi:10.1029/2005GL023681

Heinze, C., and E. Maier-Reimer, 1999, The Hamburg Oceanic Carbon
Cycle Circulation Model Version "HAMOCC2s'' for long time
integrations, Deutsches Klimarechenzentrum, Technical Report No. 20,
71 pp.


For the basic experiment description see
http://www.climate.uvic.ca/LTMIP



- LSG and HAMOCC data have been remapped to a regular 64x32 grid
  (obs: remapping is not conservative!)

- Carbon input in all cases (except hist) distributed over 12 months.

- Weathering feedback not available (for consistency with experiment
  list 'w' is nevertheless used in experimentnames).

- 'No sediment' runs have been performed with very small sediment pool
  (3GtC CaCO3). 

- In the experiments without interactive vegetation, the vegetation
  model is still integrated, sees the atmospheric pCO2, and modifies
  the land surface properties, but its carbon emissions to the
  atmosphere are suppressed.

- Ensemble simulations (started with 1000 year difference) are denoted
  by the extra number behind the feedbackdescription.

- CFC simulations have not been performed.


time is given as YYYYMMDD, 360 days/year

several points in the ocean are pure mixed-layer points
(e.g. north of Greenland,  Hudson Bay, Baltic etc.) without
dynamic exchange with other grid points.
Panama is closed.


format of timeseries:
column
 1 year  
 2 pCO2(ppmV) 
 3 integrated carbon content ocean  (PgC)
 4 integrated alkalinity ocean (Peq)
 5 CaCO3 sediment (PgC)
 6 organic sediment (PgC)
 7 carbon content atmosphere (PgC)
for Hist and 2xPI only:
 8 atmosphere-ocean carbon fluxes (PgC/year)
 9 global mean surface DIC (kmol/kg)
10 global mean surface alkalinity {kmol/kg)





contact: uwe.mikolajewicz(AT)zmaw.de