Changes between Version 6 and Version 7 of WaterIsosPage
- Timestamp:
- 02/12/13 15:02:18 (11 years ago)
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WaterIsosPage
v6 v7 2 2 (should apply to 1.0 release and following in 1.0.x). 3 3 4 = To have a pristine start for water isotopes: the "no restart option"=4 == To have a pristine start for water isotopes: the "no restart option" == 5 5 * Set clio/sources/para0.com parameter isoocn_restart = 0. The water isotopes in the ocean are initialized with a constant RSMOW value. [[BR]] 6 6 * Set isoatm/sources/isoatm_mod.f90 parameter isoatm_restart = 0. The atmospheric isotopes are set to -12 per mil for d18O and no excess for deuterium and 17O. [[BR]] 7 7 * Set isoatm/sources/isoatm_mod.f90 parameter isolbm_restart = 0. The land surface isotopic content are set to a fixed value (-30 per mil) for 18O and no excess for the other isotopes. [[BR]] 8 8 9 = Obtaining the standard version for water isotopes=9 == Obtaining the standard version for water isotopes == 10 10 Water isotopes are very sensitive to the conditions for evaporation at the oceanic surface. In ECBilt -- CLIO, there is evaporation from the oceanic surface '''THROUGH''' the sea-ice. My guess is that it was implemented as a counteracting effect to the precipitation over-estimation in the Arctic, later compensated by a flux correction. [[BR]] 11 11 With regards to the water isotopes, this parameterization causes a strong increase of d18O at high latitude, found to be unrealistic. To obtain a better agreement with observed data, I therefore suggest to suppress the evaporation through sea-ice. The EVAPSI key switch in choixcomposantes.h is there for the purpose. [[BR]] 12 12 '''__Action:__''' '''set EVAPSI to 1''' for standard version of water isotopes. [[BR]] 13 14 == Combination of FLAGS == 15 * __Combination that works__ 16 * ISOATM == 2 / ISOOCN = 2 / ISOLBM = 1 (Full interactive, this is the default) 17 * ISOATM == 2 / ISOOCN = 1 / ISOLBM = 1 (No land surface water interactive isotopic content, oceanic content calculated but not updated) 18 * __Combination that does not work__ 19 20 * __Untested__ 21 * All the rest