idf-converter 0.1.333

The idf_converter package provides tools to convert Earth Observation data into IDF files.

IDF converter is a set of Python tools to convert satellite, in-situ and numerical model data into Intermediary Data Format, i.e. self-contained, CF-compliant NetCDF files that are easier to analyse than the original files.

The IDF files produced by the converter can also be visualised using SEAScope, a viewer which offers advanced rendering functionalities that ease the detection of synergies between several sources of observations and simulations (available on Linux, Windows and macOS).

For more information about the Intermediate Data Format (IDF), please read the IDF specifications document

You can download SEAScope and some examples of IDF files on the SEAScope website.

Changelog

0.1.333 (2023-02-20)

• Sentinel-3 SRAL L2 reader failed to convert 20Hz data because the brightness temperature variables are only available at 1Hz. The reader has been adapted to skip these variables when converting 20Hz data.

• The underflow workaround in the downscaling process would only work if all values were positive due to a typo, it has been fixed.

0.1.330 (2023-02-10)

• Support added for brightness temperature variables in the Sentinel-3 SRAL L2 reader.

• Reader for Sentinel-3 OLCI L2 Chlorophyll-a data did not interpret flags correctly for data generated after February 2021 (baseline 003), it has been adapted to support these data too.

• The transform method for computing an anomaly based on a climatology file has a new “interpolate” boolean option: when set to False the converter will consider that the climatology file is defined on the same grid as the file to convert (interpolating the climatology file is costly in terms of memory, so performing this interpolation once as a pre-processing step can save a lot of resources when converting many files with the same grid, images from geostationnary satellites for example).

• Compression options were only applied to the full resolution IDF, the converter now also applies them to the downscaled IDFs.

• Minimal version for the netCDF4 dependency set to 1.6.0 and above (required for propagating compression options).

• Bugfix for underflow errors that may arise in the downscaling process.

0.1.312 (2022-10-06)

• Readers for Sentinel-1 L2 data have been modified to include the name of the L2 SAFE as a global attribute (named L2_SAFE) in the output IDF file. This only applies when the input file was located in a directory layout matching the SAFE specifications.

0.1.309 (2022-10-03)

• Readers for Sentinel-1 L2 data have been modified to avoid naming conflicts for granules from the same datatake and inaccurate temporal coverage for files generated with versions of the Instrument Processing Facility (IPF) below 3.40.

0.1.308 (2022-09-09)

• Initial version