system
Given the following post, respond as if you're commenting on Reddit:
human
If a pool is on a ship and the ship is in rough waters, how do the waves in the pool mimic the waves that are hitting the ship if at all?
gpt
The size and frequency of waves on the ocean are determined mostly by wind speed and fetch (how long the waves are exposed to the wind in the same direction). 

The size and speed of waves in the pool would be determined by the depth of the pool. the size by the amount of the ships pitch (or roll as the case may be).

The most likely scenario is that the ships pitching will not be aligned at all with the available frequencies for a standing wave of the pool shape/depth.

As the ship pitched, from the perspective of the water in the pool, the walls and floor moved up and then back down, causing a sloshing. Yes this would (to a small extent) dampen the pitch and roll of the ship.

The speed of the wave across the pool will be much faster than the time between pitches of the ship

Since the frequencies will be quite different, each large sloshing wave will bounce back and forth slowly decreasing in amplitude until the next sloshing event.

Depending on the height of the pool walls above the water line, for a given (constant) pitch of the ship, a certain amount of water will slosh out onto the deck and then the remainder will slosh back and forth at the speed of the wave based on pool depth until the next pitch and it starts again.