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Outline

Consolidation of software for the generation of External Parameters and extension with new raw data sets Hermann Asensio. Outline. current status of software system for external parameters Software Requirements Specification planned extensions. ksh scripts Fortran programs global

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  1. Consolidation of software for the generation of External Parameters andextension with new raw data setsHermann Asensio

  2. Outline • current status of software system for external parameters • Software Requirements Specification • planned extensions

  3. ksh scripts Fortran programs global icosahedral grid Output: GRIB files with external Parameters ksh scripts Fortran programs limited area domain Output: GRIB files with external Parameters GME COSMO Current status of software system for external parameters • Both systems use the same raw data sets.

  4. Current status of software system for external parameters Overall description of the External Parameter System GLOBE orography external parameters on target grid DSMW soil data GLC2000 land use

  5. COSMO Step 4a: aggregate topography data Current status of software system for external parameters Step 4b: aggregate soil data Step 1: get user settings (domain) Step 2: get raw data Step 3: generate target grid Step 5: check for consistency, merge results Step 6: generate output GRIB file Step 4c: aggregate land use data Step 4d: aggregate NDVI data

  6. geometrical height [m]

  7. fraction land cover (land-sea mask)

  8. ksh scripts Fortran programs (Fortran 2003/ Fortran 95) user defined grid Icon,GME COSMO ksh scripts Fortran programs global icosahedral grid ksh scripts Fortran programs limited area domain COSMO GME current status external parameter generation new library external parameter generation

  9. Software Requirements Specifications • explanation of the purpose and features of the External Parameter system

  10. Software Requirements Specifications user requirements: • support of variable domains (including poles) on the earth • the output data should contain information on the processing software and input raw data (reproducibility) • the EXTPAR software system should be run from a shell • addition of further external parameter fields should be feasible

  11. Software Requirements Specifications technical requirements: • NetCDF as basic file format for Input/Output • source code in Fortran 2003 / Fortran 95 Standard • technical documentation with doxygen (HTML and/or Latex style documentation generated with the help of “tags” from comments in the Fortran source code)

  12. Step 4a: aggregate topography data Step 4b: aggregate soil data Step 1: get user settings (domain) Step 2: get raw data Step 3: generate target grid Step 5: check for consistency, merge results Step 6: generate output NetCDF file Step 4c: aggregate land use data Step 4…: <aggregate raw data> System for generation of external parameters

  13. User interfaces • direct login, ksh-script • Webinterface • NUMEX (DWD)

  14. Current external parameter fields for the COSMO model, total 15 fields planned extensions for the COSMO model, total 30 fields NDVI, NDVI_MX, NDVI_RATIO, AER_BC, AER_DUST, AER_SO4, AER_SS, T2M_CL, URBAN, PRS_MIN, EMISS_RAD, FR_LAKE, DEPTH_LK, SLOPE_ASP, SLOPE_ANG, HORIZON, SKYVIEW HH, FR_LAND, SOILTYP, Z0, SSO_STDH, SSO_GAMMA, SSO_THETA, SSO_SIGMA, PLCOV_MN, PLCOV_MX, LAI_MN, LAI_MX, FOREST_D, FOREST_E, ROOTDP HH, FR_LAND, SOILTYP, Z0, SSO_STDH, SSO_GAMMA, SSO_THETA, SSO_SIGMA, PLCOV_MX, LAI_MX, FOREST_D, FOREST_E, ROOTDP Additional external parameters

  15. Additional external parametersNormalized Differential Vegetation Index (NDVI)

  16. Additional external parameterslongwave surface emissivity

  17. Additional external parametersurban fraction

  18. GLOBE DSMW GLC2000 Raw data for external parameters Currently used raw data for external parameters

  19. Raw data for external parameters Additional raw dataset • NDVI (SEAWiFS) • climatology of near surface temperature (CRU) • lake database (DWD)

  20. Raw data for external parameters Alternative raw dataset • Harmonized World Soil Database • Modis data for albedo (?) • ETOPO1 (?)

  21. Outlook • new code basis for generation of external parameters ,including documentation 2009-12 (COLOBOC deliverable, Task 2) • extended set of external parameters 2009-12 (COLOBOC deliverable, Task 3.2)

  22. Thank you for your attention!

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