Hi, well thanks to Yamato9 for pointing me to the Color Inspector application I did a bit of tinkering and came up with the following version of the atlantic with slight Green on top with blue tinge in sunlight reflections and a murky green below:

And in a stormy sea:

Obviously it hasn't been tried in
all conditions but should be ok, the file is JSGME ready & now has 3 variations to choose from:
http://files.filefront.com/A+Green+Atlantic+8k+1+3rar/;9624010;/fileinfo.html
For those using SHIV Scene for SHIII:
http://files.filefront.com/SH4+Scene+for+SH3+8k+v2+5brar/;9628564;/fileinfo.html
Enjoy!

Cheers.