Changes between Version 17 and Version 18 of GroupActivities/Meetings/Retreat20190527

Timestamp:

2019-06-12T21:27:46+02:00 (5 years ago)

Author:

peylin

Comment:

--

GroupActivities/Meetings/Retreat20190527

@@ -25 +25 @@
 '''Short summary of the session:'''                   
 
-The session was initiated be several short presentations showing ideas on how multi-tiling could be implemented in ORCHIDEE and the efforts already done. CO presented different possibilities on how to share soil and water columns for the sweep of PFTs including nobio surface types. AD presented how to include low and highlands within a grid cell which needed separate water budgets, but not necessarily separate energy budgets. PC showed the importance of having individual tiles of soil and hydrology for the ORCHIDEE-MICT crop version and for the peatlands in MICT. Moreover, a short overview of the plans on how to implement multi-tiling in Hydro-JULES was presented (surface layer, sub-surface layer and open waters defined by physical and numerical constraints, and HRU in the soils to describe the lateral exchanges). ASL presented finally the coding issues which appeared in the way the multi-tiling is presently implemented in the various branches (DOFOCO, MEB and LAK).
+ - The session was initiated with several short presentations showing ideas on how multi-tiling could be implemented in ORCHIDEE and the efforts already done. 
+ - CO presented different possibilities on how to share soil and water columns for the sweep of PFTs including nobio surface types.     - AD presented how to include low and highlands within a grid cell which needed separate water budgets, but not necessarily separate energy budgets. PC showed the importance of having individual tiles of soil and hydrology for the ORCHIDEE-MICT crop version and for the peatlands in MICT. Moreover, a short overview of the plans on how to implement multi-tiling in Hydro-JULES was presented (surface layer, sub-surface layer and open waters defined by physical and numerical constraints, and HRU in the soils to describe the lateral exchanges). ASL presented finally the coding issues which appeared in the way the multi-tiling is presently implemented in the various branches (DOFOCO, MEB and LAK).
 During the discussion, questions were raised as to whether we need the tiling of the surface, when we in the future likely will be able to increase the horizontal resolution of the model? First of all, for the CMIP simulations even in the future it will be highly unlike that we will have a resolution below 50 -100 km. Moreover, the nobio fraction is currently very poorly described (lakes, glaciers, urban, etc), which from an energy budget point of view is essential to improve even for higher spatial resolutions.
 
@@ -34 +35 @@
                    
 We decided to settle a working group in order to move forward on the multi-tiling developments in ORCHIDEE, in closed links with the atmospheric coupling with LMDZ and RegIPSL.
+
+[[BR]]
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 == Monday 13H30 - 15H30 : block 2 ==