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The aim of this course is to introduce students to GRIB/BUFR decoding and encoding with with ecCodes : A package developed by ECMWF which provides an application programming interface and a set of tools for decoding and encoding GRIB and BUFR messages.

Note: The version of the ecCodes software used for this training course is now released (v2.10.0). Please see here.

The tarball containing all the BUFR data and practicals (including the solutions) used in the course can be found here.

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The course is a mixture of standard classroom lectures and practical activities where ecCodes will be used to solve challenges.

The aim of the course is to provide participants with an advanced knowledge of ecCodes for decoding and encoding GRIB and BUFR data.

At the end of the course, the participants will be able to:

inspect the content of GRIB files using a number of tools
handle and manipulate GRIB data with advanced tools
explain what BUFR is and describe its structure
decode/encode BUFR data with ecCodes

The course is assessed by means of an online survey which allows the participants to include their feedback and suggestions for improvements. The learning outcomes are assessed separately using a self-evaluation method.

Pre-course programme

A list of pre-course activities is indicated below. Please note that these activities are integral part of the course and by completing them you will be able to get the most benefit out of the training week.

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title	Pre-course activities

Please complete the following modules:

GRIB:

ecCodes: decoding with GRIB tools

ecCodes: manipulating GRIB data with tools and API

BUFR:

ecCodes: introduction to BUFR decoding

Post hereyour reflections on the modules and any concepts that you would like to review during the face to face version of the course.

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title	Timetable (draft) -- 4th to 8th February 2019

PLEASE NOTE: the course starts at 9.30am on Monday 4th February 2019, and finishes at 17.00 on Friday 8th February 2019.

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WMO Manual on Codes
BUFR structure
BUFR tables
Operators, bitmap, replication...

Marijana Crepulja

Mon 4th Feb Tue 5th Feb Wed 6th Feb Thu 7th Feb Fri 8th Feb

9:30 - 11:00

Introduction

Overview of GRIB and ecCodes

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Introduction

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GRIB tools revision/challenges

Review of e-learning module

Xavier Abellan

10:30

online module: GRIB and ecCodes
GRIB tools: inspecting GRIB messages
Consolidation

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title	GRIB tools revision/practicals

GRIB tools
Inspection tools - grib_dump and grib_ls
Revision of e-learning module material
Quizzes and practicalschallenges

Paul Dando, Cristian Simarro, Xavi Abellan

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title	GRIB Fortran/Python APIs - decoding

Overview of the API

Using the API functions for decoding GRIB with Fortran and Python

tarball

Dominique Lucas, Xavi Abellan, Cristian Simarro

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title	GRIB Python interface

A short introduction to Python and its use at ECMWF

The Python interface to ecCodes for decoding, encoding and indexed access to GRIB messages

Slides

Wrap-up challenge for GRIB decoding

Slides Practical

Xavier Abellan

Deploying ecCodes

BUFR tools

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title	BUFR tools

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codes_info
bufr_count
bufr_dump
bufr_ls
bufr_get

Shahram Najm

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bufr_compare bufr_copy bufr_set	Slides

Shahram Najm

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title	BUFR Fortran/Python - decoding

Decoding with Fortran & Python (I)

Roberto Ribas, Shahram Najm

Tea and Coffee

11:30 - 13:00

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title	GRIB tools revision/practicalschallenges

GRIB tools (continued): inspecting and modifying GRIB messages
Consolidation Revision of e-learning module material
Quizzes and practicalschallenges

Paul Dando, Cristian Simarro

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title	GRIB Fortran/Python APIs - decoding

Overview of the API

Using the API functions for decoding GRIB with Fortran and Python

Practicals
tarball

Dominique Lucas, Xavi Abellan, Cristian Simarro

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title	GRIB Advanced Topics Part 2

GRIB parameter database
Conversion from GRIB1 to GRIB2
How to define your own local parameters

Slides Slides

Shahram Najm

12:50 Q&A session

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title	bufr_filter introduction

bufr_filter syntax and basic usage

Shahram Najm

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title	BUFR Fortran/Python - decoding

Decoding with Fortran & Python (II)

Roberto Ribas, Shahram Najm

Lunch

14:00 - 15:15

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title	GRIB tools revision/practicalschallenges

GRIB tools (continued): modifying GRIB messages and using grib_filter
Consolidation Revision of e-learning module material
Quizzes and practicals

Paul Dando, Cristian Simarro

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title	GRIB Fortran/Python APIs - Indexing/encoding

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

Dominique Lucas, Xavi Abellan, Cristian Simarro

BUFR - Quick Quiz

BUFR - Flipped classroom: review of online module

title	BUFR in a nutshell

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title	Advanced BUFR tools

bufr_filter advanced topics (I)

encoding/decoding
subset selection

Roberto Ribas

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title	BUFR Fortran/Python APIs - encoding

Encoding with Fortran & Python (I)

Roberto Ribas , Shahram Najm

Tea and Coffee

15:45 - 17:00

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title	GRIB Advanced Topics Part 1

Simple packing
Constant fields
Bitmaps

Shahram Najm

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title	GRIB Fortran/Python APIs - Indexing/encoding

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

Practicals

Dominique Lucas, Xavi Abellan, Cristian Simarro

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title	BUFR with ecCodes

BUFR with ecCodes

Marijana Crepulja

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title	ecCodes User Interface

Sandor Kertesz

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title	Advanced BUFR tools

bufr_filter advanced topics (II)

delayed replication
bit maps

Solutions extra

Roberto Ribas

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title	BUFR Fortran/Python APIs - encoding

Encoding with Fortran & Python (II)
Slides

Roberto Ribas, Shahram Najm

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title	What is happening?

Blog Posts

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title	GENERAL INFORMATION for participants

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Take the survey!

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Training course participants: February 2019

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title	Extra resources

Check our online training resources on:

MARS - ECMWF's meteorological archive

MARS - advanced retrievals, data manipulation and computations

A starter guide to ecFlow

Introduction to Metview

Using ECMWF computing facilities: the batch system

Other online resources are available here

Lectures notes from the 2019 course are here

Lectures from the course: Download the 2018 lectures from here (GRIB) and here (BUFR)

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