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[StupidElves]

I have heard that it was impossible, but has anyone here ever successfully drained an entire sea tile?

I imagine that it would work by building a long tunnel that would go directly to the circus so that the bottomless pits could be tested.

[Jack Smythe]

I've never done it, but there fairly confirmed reports of others doing it. Lignite bins, walling off the ocean and draining it into the aquifer, just google or search it. Its bloody well CPU intensive, and risks a lot of Fun, but, if you feel up to it, why not try?

Here's one thread I found that may help:
http://www.bay12forums.com/smf/index.php?topic=41204.0

[StupidElves]

Thanks for that, I'll be sure to drain all of the world's oceans as a mega project.

[bennerman]

Question: if you manage to drain all the ocean tiles in your embark, will it drain the rest of the ocean, or atleast create a vortex of some kind?

[StupidElves]

From what I've read, the side tiles at the edge of the map will constantly try to recreate new water tiles to fill up the void in the ocean. If a group of dwarves were to go to the deepest part of the ocean and create a pathway for the water to fall down into the circus, the bottomless pits could drain all the water from the entire ocean. But that won't happen in the current version as the rest of the world is non moving while you play.

[pisskop]

Tiles not on the map do not change, or much exist.  When tge world ages with the fort, perhaps.

^^above

[catpaw]

Thats why the whole concept of world wide caverns bothers me a bit. A single connection anywhere between ocean and cavern ought make the second soon to be non-existent.

[Snaake]

Thats why the whole concept of world wide caverns bothers me a bit. A single connection anywhere between ocean and cavern ought make the second soon to be non-existent.

No, the first would (mostly) disappear and the second would fill with water. Assuming the total volume of caverns is greater than total volume of the ocean, which is a highly suspect assumption. "Mostly" because oceans are not bowls, they have multiple "lowest points" separated by ridges, so even if you make drain in the bottom of one basin you'd end up with some small seas left in the other basins, even if there isn't a true world ocean anymore.

[Fluoman]

Thats why the whole concept of world wide caverns bothers me a bit. A single connection anywhere between ocean and cavern ought make the second soon to be non-existent.

"Mostly" because oceans are not bowls, they have multiple "lowest points" separated by ridges, so even if you make drain in the bottom of one basin you'd end up with some small seas left in the other basins, even if there isn't a true world ocean anymore.

For reference.

[Snaake]

Thats why the whole concept of world wide caverns bothers me a bit. A single connection anywhere between ocean and cavern ought make the second soon to be non-existent.

"Mostly" because oceans are not bowls, they have multiple "lowest points" separated by ridges, so even if you make drain in the bottom of one basin you'd end up with some small seas left in the other basins, even if there isn't a true world ocean anymore.

For reference.

Yea, probably what I was thinking of, even though I didn't remember where I'd read it... most recently, that is; you can see said fact about multiple basins on any world map with ocean depth, and I've taken a couple of University courses on oceanography.

[Jack Smythe]

From what I've read, the side tiles at the edge of the map will constantly try to recreate new water tiles to fill up the void in the ocean. If a group of dwarves were to go to the deepest part of the ocean and create a pathway for the water to fall down into the circus, the bottomless pits could drain all the water from the entire ocean. But that won't happen in the current version as the rest of the world is non moving while you play.

If you obsidianize the edges, you can keep the water from regening, at least in small, fortress areas. But, yeah, it won't affect the world. Otherwise Boatmurdered's FTW PDD or any other magma cannon would annihilate the world, given enough time.

[bennerman]

Tiles not on the map do not change, or much exist.  When tge world ages with the fort, perhaps.

^^above

But see, I think that is only for histories and stuff, not physical stuff like that. Did anyone try embarking right next to, or adventuring to, boatmurdered to find out?

[Splint]

But see, I think that is only for histories and stuff, not physical stuff like that. Did anyone try embarking right next to, or adventuring to, boatmurdered to find out?

I believe one guy did and got killed by trolls inside the fort proper after he got lost.