Changes between Version 16 and Version 17 of DevelopmentActivities/ORCHIDEE-ROUTING

Timestamp:

2020-10-20T17:14:54+02:00 (4 years ago)

Author:

aducharne

Comment:

--

DevelopmentActivities/ORCHIDEE-ROUTING

@@ -19 +19 @@
   - NEED to test the intrinsic/numerical properties of the scheme in order to better understand why the results (river discharge for the Amazon river at Obidos) seems to critically depend on the time step in routing and possibly on the number of HTUs per grid box, etc... 
   - For that a specific "unitary" test with a pulse of rain (or runoff) should be done. To ease this approach Jan will update the "force_routing" routine in order to perform some tests with allways the same inputs of water.
-  - Agnes also suggested to test the properties of the routing scheme with only the "river reservoir" 
+  - Agnes also suggested to test the properties of the routing scheme with only the "river reservoir"
+  - She reminds her [https://forge.ipsl.jussieu.fr/orchidee/attachment/wiki/DevelopmentActivities/ORCHIDEE-ROUTING/routing_k_upscaling_etc.pdf note on the routing scheme and its application at high and coarse resolutions], with discussion elements on the CFL condition and implication for the HTU size, on the way to calculate the topographic index from high resolution topographic information, on the resulting effective stream length.  
 ==> Different tests on the choice of time step, the choise of the HTUs max per grid, the calculation of the topoindex, etc need to be done and discussed together at the next meeting
  - Contributions to this work