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GSI -vs- WRFDA software

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New member
Hello everybody,

I wanted someone to explain me this. I need to run the 3DVAR for WRF and NMMB models, in an operational setup. I have ran a 3DVAR exp on my domain (Iberian Peninsula) emulating an operational setup, with GSI package. Now I see there is also the WRFDA code that can do the same.

Some questions. Are equivalent the GSI and WRFDA packages to perform and 3DVAR operational run? Or in other words, my 3DVAR GSI is optimal for what I want? Can anybody explain me a little bit the why there are 2 packages to do the same?

I have been reading the documentation but haven't found the answers to my questions. Probably I should read more :)