Hi,

There are a few oceanography and climate libraries for python. You should check a list like this:

1) http://oceanpython.org/links/

2) http://www.imr.no/~bjorn/python/links.html

As for extracting the exact parameters you're requesting I would advise checking scientific literature (since I don't know how to do it). A quick google search for "RISAT-1 ocean waves" revealed this article:

https://www.researchgate.net/publication/266749175_Deriving_sea_state_parameters_using_RISAT-1_SAR_data

You can request the full article here in research gate. I'm sure a more extensive search would reveal a lot more info on the subject.

Best of luck.

Article Deriving sea state parameters using RISAT-1 SAR data

i would focus on relevant c-band papers