Changes between Version 64 and Version 65 of GroupActivities/Meetings/Developer

Timestamp:

2020-01-08T08:52:35+01:00 (4 years ago)

Author:

peylin

Comment:

--

GroupActivities/Meetings/Developer

@@ -20 +20 @@
 == 07/01/2020 Routing scheme in ORCHIDEE ==
 
-Specific meeting to present and discuss different options for the routing scheme in ORCHIDEE and the associated flood-plains 
-
-The different presentations are:
+Specific meeting to present and discuss different options for the routing scheme in ORCHIDEE and the associated flood-plains. 
+
+The different presentations were:
  - Intro with few news (Philippe P) [attachment:ORC-DEV_Jan2020_Intro.pdf]
  - New routing scheme based on Hydrological Transfert Units (HTU) for high resolution simulations (Jan) [attachment:DEV-Meeting_presentation_routing_Jan.pdf]; the new scheme allows to decompose the water demand between ecological flow for the river, agriculture demand (irrigation), Domestic water use and hydro-electricity. It also accounts for dams to sustain the different demands. Key remaining issues are link to parallelisation. 
- - Ground water development and links with the routing scheme (Agnes) [attachment:ORCHIDEE_DEV_routing_070120_Agnes.pdf]; i) Agnes tested a new approach for the time constant of the water in the Ground Water reservoir (from Boussinesq equation) but it degrades the river flows; ii) They have inserted a subgrid tiling with lowland and highland units that exchange water (from highland to lowland); this has an impact on the soil moisture and ET of the grid.  
- - Flood plain innundation in the ORCHILEAK version (Rony Lauerwald) [attachment:Lauerwald_20200107.pdf]; Rony implemented and tested a new approach for the floodplain based on a threshold (Bankfull) over which the river start to fill the potential floodplain; It largely improves the dynamic of flooded area over the Amazone. Such scheme will be transfered into the TRUNK together with Agnes. 
- - Toward a new high resolution floodplain scheme (Anthony Schrapffer) [attachment:ORCHIDEE_Anthony_high-resolution-floodplains.pdf] Anthony is implementing a potential new floodplain scheme working on the "Paraguay river and flooding region" in South America; It is based on the propagation of a flooding waves depending on topography.  
+ - Ground water development and links with the routing scheme (Agnes) [attachment:ORCHIDEE_DEV_routing_070120_Agnes.pdf]; i) Agnes tested a new approach for the time constant of the water in the Ground Water reservoir (from Boussinesq equation) but it degrades the river flows; ii) She inserted a subgrid tiling with lowland and highland fractions in a grid-cell, that exchange water from highland to lowland; This new representation of subgrid heterogeneity has an impact on the soil moisture and ET of the whole grid. Ongoing work with more options to come. 
+ - Flood plain innundation in the ORCHILEAK version (Rony Lauerwald) [attachment:Lauerwald_20200107.pdf]; Rony implemented and tested a new approach for the floodplain based on a threshold (Bankfull) over which the river start to fill the potential floodplain (pre-determined); It largely improves the dynamic of flooded area over the Amazone. Such scheme will be transfered into the TRUNK together with Agnes. 
+ - Toward a new high resolution floodplain scheme (Anthony Schrapffer) [attachment:ORCHIDEE_Anthony_high-resolution-floodplains.pdf] Anthony is implementing a potential new floodplain scheme working on the "Paraguay river and its associated floodplain" in South America; It is based on the propagation of a flooding wave depending on topography. On-going work that will test several hypothesis for floodplain dynamics.