Summary report on the working days (pdf)

Agenda for the NetFAM working days on surface and soil data assimilation for the HARMONIE/ALADIN forecasting system


Monday 16 March in meeting room VIA


10.00 – 11.45

Session 1: Status of ALADIN/HARMONIE with regard to the surface and the soil


10.00 – 10.45 Jean-Francois Mahfouf - Strategies for introduction of SURFEX, including data assimilation, in ALADIN and AROME. Joint HIRLAM/ALADIN plans.
presentation PDF

10.45 – 11.00 Discussion

11.00 – 11.30 Ulf Andrae - Status of the SMHI HARMONIE systems with particular emphasis on the surface and the soil and on GL conversions from ECMWF/HIRLAM to HARMONIE
presentation PDF

11.30 – 11.45 Discussion

11.45 – 13.00 Lunch


13.00 – 15.00

Session 2: Discuss and start to develop techniques for a proper conversion of soil and surface variables in the ECMWF model to the soil and surface and soil variables in HARMONIE/SURFEX model (ISBA to start with).


13.00 – 13.30 Roger Randriamampianina and Mariken Homleid – Validation of a trial to make correct conversions of ECMWF soil model variables to the HARMONIE ones.
presentation PDF 1 presentation PDF 2

13.30 – 13.45 Discussion

13.45 – 14.15 Jean-Francois Mahfouf – Some thoughts on a proper (flux-consistent) conversion of ECMWF soil model variables to the SURFEX ones.
presentation PDF

13.45 – 14.15 Jean-Francois Mahfouf on behalf of Patrick LeMoigne – Soil ice initialization in SURFEX
presentation PDF

14.15 – 14.30 Discussion

14.30 – 15.00 Formation of a subgroup (rapporteur J.-M. Mahfouf) to design algorithms for a proper conversion of soil and surface variables from the ECMWF/HIRLAM ones to the HARMONIE/SURFEX ones


15.00 – 15.30 Coffee


15.30 – 16.15

Session 3: Learn the CANARI coding structure in order for HIRLAM staff to make real contributions in the field of land soil temperature and moisture, sst, sea ice, lake and snow assimilation.

16.15 Francoise Taillefer – Overview of the CANARI data assimilation, methods and computer code
presentation PDF

16.15 – 16.30 Discussion / Break


Session 4: Validate the present HARMONIE surface and soil assimilation based on CANARI to make certain that everything is carried out correctly.


16.30 – 16.50 Maria Diez – Validation of the CANARI 2m temp and humidity analysis and the OI soil variable assimilation.
presentation PDF

16.50 – 17.00 Discussion

17.00 – 17.20 Mariken Homleid – Validation and improvement of the CANARI SST and sea ice assimilation, with some comments also on lake data assimilation
presentation PDF

17.20 – 17.30 Discussion

Tuesday 17 March


09.00 – 10.30 Work in subgroups in meeting rooms VIA and met.no

Subgroup 1 on soil/surface variable conversion (Rapporteur J.-F. Mahfouf)

Subgroup 2 on CANARI development (Rapporteur Mariken Homleid)

Subgroup 3 on Summer time convection CIS (Rapporteur to be arranged later during the week))

Subgroup 4 on Observations for HARMONIE 3D-Var (Rapporteur Magnus Lindskog)

Note: Subgroup 3-4 have subjects outside the soil/surface working week)


10.30 – 11.00 Coffee

11.00 - 12.00 Continued work in subgroups

12.00 – 13.00 Lunch


Session 5: Report on progress and make a detailed plan for HIRLAM (and ALADIN) staff contributions in HARMONIE/ALADIN surface and soil assimilation (using CANARI and SURFEX as the framework) in meeting room VIA


13.00 – 13.30 Jean-Francois Mahfouf - The simplified EKF for soil data assimilation
presentation PDF

13.40 – 13.50 Elena Bojarova, Nils Gustafsson (based on Han The): An adaptive UKF as an alternative to simplified EKF
presentation PDF 1 presentation PDF 2

13.50 – 14.20 Sam-Erik Walker/William Lahoz: NILU EnsKF ideas for soil assimilation
presentation PDF

14.20 – 14.35 Suleiman Mostamandi – A literature review on snow information data assimilation
presentation PDF

14.35 – 15.00 Coffee

15.00 – 15.15 Nils Gustafsson - Naïve ideas on Lake data assimilation
presentation PDF

15.15 - 15.35 Jure Cedilnik Analysis of the LandSAF albedo product for NWP
presentation PDF

15.35 – 16.00 Discussion


16.00 – 17.00 Practical exercise – Installation of SURFEX EKF in meeting room Castellanus


  1. - 18.00 Continued work in subgroups




Thursday 19 March


13.00 – 16.00

Session 6: Hands-on exercise in soil data assimilation with SURFEX including EKF and OI (lead by J.-F. Mahfouf) in meeting room Castellanus


16.00 – 18.00 Continued work in sub-groups




Friday 20 March

Final session in meeting room VIA


09.00 – 10.00 Reports from sub-groups including discussions

10.00 – 11.30 Drafting of a revised HIRLAM/ALADIN research plan for surface and soil assimilation