I am proud to announce a new release of PyDDA. This release adds:
* A bug fix for the calculation of the radial velocity cost function to be more consistent with MultiDop. This will change the coefficients you use for this constraint.
* Improved the capability to adjust the thickness and sizes of quivers and streamline arrows for better visualizations.
* Support for integrating ERA-Interim data into retrieval. This feature can even automatically download and interpolate the ERA-Interim data to the analysis grid, but will require the ECMWF Web API to be installed in order to do so.
The ECMWF Web API, an optional dependency of PyDDA, can be downloaded here:
https://confluence.ecmwf.int/display/WEBAPI/Access+ECMWF+Public+Datasets
One will need to follow the instructions at the above link to set up an account with ECMWF and to use this account with the Web API.