GRIB API: Library and Tools

Tuesday 24 February

09:00 Welcome - Umberto Modigliani

• Lecturers
• Students
  

09:15 GRIB API Introduction - Shahram Najm

• GRIB editions 1 and 2: structure and differences
  
• GRIB API design and concepts

10:30 Coffee

11:00 GRIB API: Tools - Carsten Maass

• Introduction to the command-line tools
• Obtaining information about the grib_api installation with grib_info
• Inspecting the content of GRIB files with grib_count,  grib_ls and grib_dump

Solutions to grib_dump and grib_ls practical

12:15 GRIB API: Keys - Shahram Najm

• Coded and computed keys
• Namespaces
• Examples of keys

13:00 Lunch

14:00 GRIB API: Tools - Paul Dando

• Using grib_get
• Printing data values with grib_get_data
• Comparing the content of GRIB messages with grib_compare

15:30 Coffee

16:00 GRIB API: Tools - Paul Dando

• Copying GRIB messages with grib_copy
• Making simple modifications to the GRIB header information with grib_set

16:55 Questionnaire/Feedback

17:00 Cocktails

Wednesday 25 February

09:00 GRIB API: Fortran, C, Python APIs - Basics - Dominique Lucas, Xavi Abellan, Cristian Simarro

• Overview of the API
• Using the API functions for decoding with Fortran, C and Python
•  Practicals  
  

10:30 Coffee

11:00 GRIB API: Fortran, C, Python APIs (continued) - Dominique Lucas, Xavi Abellan, Cristian Simarro

• Practicals  

13:00 Lunch

14:00 GRIB API: Advanced tools - Paul Dando

• Basic features of grib_filter
• Conversion from GRIB to NetCDF with grib_to_netcdf

15:30 Coffee

16:00 GRIB API: General practicals

16:55 Questionnaire/Feedback

17:00 End

Thursday 26 February

09:00 GRIB API: Fortran, C, python APIs - Advanced features - Dominique Lucas, Xavi Abellan, Cristian Simarro

• Use of the indexing routines
• Encoding GRIB messages and using GRIB samples
  
• Practicals 
  

10:30 Coffee

11:00 GRIB API: Fortran, C, python APIs - Advanced features (continued) - Dominique Lucas, Xavi Abellan, Cristian Simarro

• Practicals 
  

13:00 Lunch

14:00 GRIB API: Python interface - Xavi Abellan

• A short introduction to Python and its use at ECMWF
• The Python interface to grib_api for decoding, encoding and indexed access to GRIB messages

15:30 Coffee

16:00 GRIB API: Advanced topics I - Shahram Najm

• Simple packing
• Constant fields
• Bitmap fields
• Multi fields

16:55 Questionnaire/Feedback

17:00 End

Friday 27 February

09:00 GRIB API: Advanced topics II - Shahram Najm

• Parameter database
• Conversion from GRIB 1 to GRIB 2

10:30 Coffee

11:00 GRIB API: Advanced topics II - Shahram Najm

• Local adaptation - how to define your own local parameters

12:15 Quiz

12:55 Questionnaire/Feedback

13:00 End of module COM GRIB