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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: Image Added
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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 ODB |
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is used to visualise (and optionally |
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ODB data using various techniques and plot types |
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Tutorial
A main tutorial about using ODB in Metview can be found here.
Gallery
The Gallery features a few ODB-related examples showcasing both the ODB Filter and ODB Visualiser icons.
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Script language supportMetview provides full support for ODB from its Macro and Python interfaces. The |
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ODB Functions
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full list of available functions can be found on the ODB Functions page. For elaborated examples please study the tutorials and see the Gallery |
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title | Other resources |
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| Gallery |
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