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


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Timestamp:
01/08/20 08:52:35 (9 months ago)
Author:
peylin
Comment:

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  • GroupActivities/Meetings/Developer

    v64 v65  
    2020== 07/01/2020 Routing scheme in ORCHIDEE == 
    2121 
    22 Specific meeting to present and discuss different options for the routing scheme in ORCHIDEE and the associated flood-plains  
    23  
    24 The different presentations are: 
     22Specific meeting to present and discuss different options for the routing scheme in ORCHIDEE and the associated flood-plains.  
     23 
     24The different presentations were: 
    2525 - Intro with few news (Philippe P) [attachment:ORC-DEV_Jan2020_Intro.pdf] 
    2626 - 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.  
    27  - 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.  
    28  - 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.  
    29  - 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.  
     27 - 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.  
     28 - 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.  
     29 - 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.  
    3030 
    3131