[Corpora-List] Sublanguage/controlled language

[Victoria López]

Dear List Members, 

I'm a Ph.D. student and I am studing sublanguages. I consider that weather reports is a clear example of sublanguage. In all the bibliography I have consulted, they have all the features to be considered a sublanguage. 
  
But some researchers told me that they would consider weather reports as being more a controlled language than a sublanguage because the writer is not free in his word choice and he has to follow a rigid style sheet.

I'd really like to know your opinions about this. Sorry if this is a very obvious question, but it's important for my research. 

Thank you very much for your help. 

Victoria López