Presentation is loading. Please wait.

Presentation is loading. Please wait.

Scientific questions related to the representation of the coupled continental surface/atmosphere system in the IPSL CM Contributions: F. Cheruy (1), S.

Similar presentations


Presentation on theme: "Scientific questions related to the representation of the coupled continental surface/atmosphere system in the IPSL CM Contributions: F. Cheruy (1), S."— Presentation transcript:

1 Scientific questions related to the representation of the coupled continental surface/atmosphere system in the IPSL CM Contributions: F. Cheruy (1), S. Ait-Mesbah (1), A. Campoy (2), A. Ducharne (2), J.L. Dufresne (1), J.C. Dupont (3), M.A. Foujols (3), J. Ghattas (3), M. Gimberteau (2), M. Haeffelin (3), F. hourdin (1) and in a short furtur F. Wang (post doc, 1) 1-LMD, 2-Sisyphe, 3-IPSL

2 Potential (local and LS) couplings and feedbacks between SM and climate Seneviratne et al. 2010 Latent/sensible partition clouds/radiation Convection/PBL evolution to surface fluxes Convection (surface heterogeneities) Vegetation General circulation clouds

3 Impact of the new hydrological module in the near surface climate simulated with LMDZOR Strenghts and weaknesses of the soil/atmosphere coupling in the IPSL-CM Impact of soil moisture-climate feedbacks on CMIP5 projections: the IPSL participation to GLACE-CMIP5 experiment Role of the vegetation?

4 Impact of the new hydrological module in the near surface climate simulated with LMDZOR

5 Trop chaud Sans biais SIRTA Analyse des simulations LMDZ « zoomé-guidé » au SIRTA ORC11 augmente la fraction évaporative

6 Development of the 1D version of LMDZ coupled with Orchidee LMDZ-1D LMDZ 3D zoomé guidé surface

7 AR4OR2(K) AR4OR11(K) Biais en température à 2m, JJA,réf. CRU Near surfaceTemperature biais in CMIP5 AMIP Summer, Europe

8 Strenghts and weaknesses of the soil/atmosphere coupling in the IPSL-CM

9 Latent flux/rnet correlations JJA AMIP period FORCED COUPLED (SP) ORC11ORC2 From the forced to the coupled simulations

10 CMIP5-AMIP Runoff/Precip HFLS/(HFLS+HFSS) Runoff/Precip HFLS/(HFLS+HFSS) JJA Sahel Europe

11 R ORC11-forced ORC11 coupled SPORC2 coupled SP ORC2 forced

12 Impact of soil moisture-climate feedbacks on CMIP5 projections: the IPSL participation to GLACE-CMIP5 experiment

13 GLACE-CMIP5: Impact of soil moisture- climate feedbacks on CMIP5 projections: CMIP5 historical + RCP85 (1950-2100), SST, Sea Ice et land cover from the « master » RCP85 Participating : GFDL, ECHAM6, CSM, IPSL-CM5A, Ec-Earth G1A85: Seasonal cycle of soil moisture prescribed as 1971-2000 climatology from CMIP5 master experiment G1B85: Seasonal cycle of soil moisture prescribed as transient climatology, running mean over 30 year periods[ 1950-2100 CMIP5 mascter RCP8.5]

14 Differences G1B85/G1A85 2071-2100 : T2m GLACE IPSL-CM5A Mean projected decrease of SM impacts regionally mean and extreme daily maximum of temperatures in summer through SM induced changes in the evaporative cooling. Precipitation impacted as well.

15 Role of the vegetation?

16 CMIP5/RCP8.5 Latent heat flux over land years W/m2 50 30 Evaporation simulated with CMIP5 ESM which account for the carbone cycle seems to behave differently

17 CMIP5 (1% CO2, LAND) Fixclim The increase of CO2 impacts the vegetation only, the radiation Is calculate with CO2 from the control experiment Fdbk1 CNRM MPI IPSL


Download ppt "Scientific questions related to the representation of the coupled continental surface/atmosphere system in the IPSL CM Contributions: F. Cheruy (1), S."

Similar presentations


Ads by Google