I work with one of the NHL teams that does this, and I have to say, if that's a photo of the venue you're working in, you've got bigger challenges to overcome than color correction.

Yes, you'll need to mount the projectors above the ice and fire straight down, which means you're working with a pretty short throw distance.

Ultimately what you'll be doing is creating a huge blended projection, with different projectors covering different portions of the ice, and the edges blended together to create one big image. Arena can do this, but unless you've got a phenomenally capable computer, you won't have enough graphics outputs to drive this with just Arena. We do it with four dual-output, HD media servers.

The NHL teams that are doing this are generally using 15-20 projectors, each in the 15-20,000-lumen range, to do this, and that's blending together 6-8 separate projections. So, you're looking at 6-8 separate video signals if you're projecting from 80 feet in the air, and in this case you're projecting from much lower, which may require more, smaller images to cover the whole ice.

Doing a blend like this takes longer than a comparably-complicated blend would take in a ballroom, partly because it's difficult for the projectionist who's doing the blend to actually see the image from directly in front, you're always viewing at an angle. Don't underestimate the time this will take, expect a minimum of a full day to load in, an all-night, overnight call to blend the projections, and then you can start programming.

In terms of how powerful your projections will need to be, that's mostly a function of how dark you can make the room; if you can do a full blackout, you might get away with double-stacked 10Ks, but if you're more than dimly lit you'll need a ton more power.

That venue doesn't usually have pink ice, is that something specific to your event, or is there maybe something up with the color correction in the image you posted?

Hope this helps?