Changes between Initial Version and Version 1 of DevelopmentActivities/CMIP6/DevelopmentsCMIP6/cmip6_initial_proposition

Timestamp:

2015-12-14T12:42:50+01:00 (9 years ago)

Author:

peylin

Comment:

--

DevelopmentActivities/CMIP6/DevelopmentsCMIP6/cmip6_initial_proposition

@@ +1 @@
+
+To be updated when questions appear or when developments are improving
+
+
+- '''11 layers soil hydrology (ready, in the trunk)'''
+
+Main Resp: Jan, Agnes, 
+
+Improvement over summer with “some work on W stress functions”
+
+No large conceptual changes 
+
+
+- '''Common soil vertical discretization between Hydrology and Thermics (ready, not yet commited in the trunk)''
+
+Main Resp: Frederique, Agnes, Jan 
+
+Soil thermics goes up to 10 meter
+
+Hydrology stops most likely at 2 m; Test by Fuxing to choose for CM6 are ongoing
+
+a general “scheme” to have flexible depth need to be implemented (following a group discussion in January 2015)
+
+
+- '''New soil thermal properties (function of USDA soil texture classes) (ready, in the trunk)'''
+
+Main Resp: Agnes, Frederique
+
+Tests made by Agnes & Fuxing & Frederique ?
+
+
+- '''Soil freezing following I. Gouttevin’s Phd (ready, in the trunk but improvement to be done)''
+
+Current scheme conserve energy on annual basis (from freezing/thawing) and will be used as default.
+
+Revision is planned for “instantaneous” conservation (late 2015)
+
+Use of the "Diag_level" should be droped after the common soil vertical discretization
+
+Need a working group (IG, GK, …) ?
+
+
+- '''New 3 layers snow module (in the trunk, improvement on going)''' 
+following Tao Wang's work.
+
+Main Resp: Catherine, Tao, Philippe C, Jan
+
+Trunc contain the latest version used in MICT (since Mai)
+
+Ongoing improvement to have a snow fraction and fully implicit coupling
+
+Actions will be followed by a little group (FC, AD, JP, CO, JLD, PP, PC, TW, GK, JG, PM) with possible implementation by Fuxing and Jan
+
+
+- '''Adjustment of the albedos (on going: objectif Juin 2015)'''
+
+Replace Bares Soil albedo by the “MODIS – Background Albedo” from JRC-TIPor from ECOCLIMAP-2
+
+Optimize the NIR and VIS 12 vegetation albedos using MODIS global albedo
+
+Ongoing action by PP and VB in Mai-June
+
+Main Resp. : Philippe P, Vladislav, Frederique
+
+
+- '''Nitrogen cycle (Autumn 2015)'''
+
+Main Resp: Nicolas, Bertrand, Sushi, Daniel, Philippe C
+
+Code ready, under debugging phase 
+
+Possible large impact on climate simulations: NEED TO LAUNCH first global tests NO later than Mid October 2015
+
+Global forced and coupled tests to be done and analysed before end of 2015 
+
+
+- '''Permafrost and Yedoma deposit (to be decided, spring 2016)'''
+
+Main Resp: Philippe C., Dan, Shushi
+
+Permafrost module currently implemented in MICT version
+
+Main impact is a source of CO2 to the Atm.; small impact on soil thermal properties
+
+Yedoma (deep permafrost): impact through CO2 emissions
+
+“coupling” with the new E/W soil discretization need to be done 
+
+Extrapolation of the W content below soil W depth to be chosen
+
+Need some work for the integration with the selected upper soil T/W common discretization
+
+
+- '''Crops'''
+
+Main Resp: Nicolas 1-2, Philippe C., Xuichen 
+
+Addition of a distinction between winter and spring C3 crops (phenology)
+
+Small change to be added autumn 2015
+
+POSSIBLE inclusion of ORC-CROP modules (to be discuss Autumn 2015).
+
+
+- '''Fires following SPITFIRE (to be added in the trunk in beginning of autumn)'''
+
+Main Resp: Patricia, Yue Chao, Philippe C.
+
+Coupling with Trunc to be done in September 2015 (small effort)
+
+Forcing for “human-induced” fires need to be prepared
+
+Modification of the albedo following fires under “implementation”
+
+Implementation with ORC-CAN: need to select “burned” trees !
+ 
+
+- '''DGVM (ready, in the trunk, some calibration needed)''' 
+
+Main Resp: Philippe C., Nicolas Viovy, Dan Zhu
+
+Ready for the High latitude PFTs ; Ongoing “check/calibration” for the tropics 
+
+Update of the Trunc already done (In May 2015 for Paleo simul tests)
+
+Re-calibration “needed” when Nitrogen cycle will be included
+
+Implementation with ORC-CAN will require substantial tests/dev.
+
+
+- '''SPECIFIC MERGES FOR CMIP6-V2''' 
+
+CMIP6-V2 will be based on the NEW FOREST REPRESENTATION (ORC-CAN) including:
+
+ - Forest management    
+ - Two streams radiation transfer scheme        
+ - Canopy structure     
+ - Age classes (LCC/LM) 
+ - Hydraulic stress for trees           
+ - Crop management      
+ - Dynamic phosphorous cycle ?
+ - New plant functional types (Mosses/lichens & Shrub)
+ - New soil carbon module with « Priming » and DOC, POC, Vertical discretization,….