How can I simulate the atmosphere for an animation of sunrise? I'm trying to create an animation of sunrise,
I searched for some videos and I noticed the sky has multiple color,
For example it starts with purple from black, goes to Yellow  then turns into light blue(day sky color)-

I tried gradient material on a dome with no luck. 

How can I simulate this in blender cycles?
Can I use volumetrics and multiple light colors?
Fog? Or what?
My scene is in the sea so I need all around lighting which will have different colors.
I did some research but unfortunately I didn't find anyone who made something similar.

Thank you for your answers.
Cheers.
If you are talking about Cycles, try using the Sky Texture parameter node in the World settings tab. With it you can create a semi-realistic sky with a sun. The sky and sun reacts in color to the position it is in. You control the position with the shadowed sphere gimbal.







If you need more control, I would probably start trying to connect nodes with color ramps and curves.