There's a guy with a really cool interactive map
that allows you to set the depth of the sea rise from global warming. I selected California as the kick-off point for the link (since that's where I am) and a depth of 9m since that's what the climate folks keep talking about around where I work. I only wish that he'd put a depth of up to 35 m. That's the Pliocene depth and very close to what the coming temeprature regime would be after a century or two. It'd be helpful for writing.