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Overview

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Overview

The IDF parser imports coverage data from iMOD IDF files. This binary file type is described in the iMOD manual. Note there is an error in the IDF specification. The first two fields of the comment section, parameter names lAdit and Nline, are not Integer 1, but Integer 4. 

Noteworthy implementation details

The format is mostly straightforward. Here described, is how the parser deals with the not so straight forward elements.

Coordinates

In IDF, the bounding box coordinates are specified by their X and Y coordinate. Their coordinate system is not explicitly stored. When importing, the parser uses the default coordinate system as specified by FEWS. One should therefore specify the grid definition explicitely in the grids. The grid definition can be derive from the IDF by using iMOD.

Vectors

The IDF format supports vectors, in addition to single floating point values. These are not currently supportedImports time series data directly from the Dutch Water Authorities' data centre (Landelijk Meetnet Water). The FEWS LMW import function uses the SIP protocol to import the data directly from a remote database, it is therefore required to have an internet connection. In the FEWS import configuration file a username and password have to be entered, these can be requested from the LMW data centre directly and not through Deltares. Without an appropriat eusername/password combination it is not possible to import data. Currently the import only works on Windows computers as there is no LINUX library available to access the LMW database.