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| What is ODB?ODB (Observation DataBase) is a file-based database-like system developed at ECMWF to store and retrieve large volumes of meteorological observational and feedback data efficiently for use within the IFS. Currently, ODB |
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files come in two flavours: - ODB-1 (the original hierarchical table format capable of running in a parallel environment within IFS)
ODB-2 (a
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Data from ODB can be extracted using the ODB/SQL query language, which is generally a small subset of SQL with some useful extensions. The home of the ODB software |
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The ODB iconMetview automatically recognizes both ODB-1 and ODB-2 formats and assigns the |
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both types of file in the user interface: |
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Examining ODB contentsThe meta-data and data contents of an ODB can be inspected with the ODB Examiner, which can be |
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started up from the user interface (right-click examine on the icon) |
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metview -e odb your_odb
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There are two more Metview icons associated with ODB: the ODB Filter icon
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Filtering ODBFiltering ODB data is performed with the ODB Filter icon, which can perform an ODB/SQL query resulting in a new |
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filter) ODB data using various techniques and plot types |
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Script language supportMetview provides full support for ODB from its Macro and Python interfaces. The full list of available functions can be found on the ODB Functions page. For elaborated examples |
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please study the tutorials and |
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title | Tutorials |
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The main tutorial about using ODB in Metview can be found here. There is also a shorter tutorial available on this page.
Gallery
The Gallery features a few ODB-related examples showcasing both the ODB Filter and ODB Visualiser icons.
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title | Other resources |
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| Gallery |
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