Attribution: Whenever you use this photo, you will have to give attribution in a reasonable manner.
Distribution: Whenever you distribute this work, you have to mention that the work is licensed under the Creative Commons Attribution ShareAlike 3.0 License, and provide a link to the Creative Commons Deed.
In short: You are allowed to freely distribute and modify this photo, as long as you credit the photographer as “Photo: Hans-Petter Fjeld (CC-BY-SA)”
This photo was taken by Hans-Petter Fjeld[1].