Yes.
Pressure and temperature are the main factors influencing the speed of sound through water, which is very important when calibrating sonars as you need to know how quickly the sound will travel to know how far away a response is.
Although water can’t be compressed there’s a few other factors.
Density changes with temperature, and it’s a lot colder at the bottom then the top.
There are air bubbles in the water, all of it. Although atmospheric air mixing by waves is unlikely to make it all the way to the bottom, biology produces gases via several different methods and gas can be compressed, which reduces the space between water molecules and increases the density.
Yes. Pressure and temperature are the main factors influencing the speed of sound through water, which is very important when calibrating sonars as you need to know how quickly the sound will travel to know how far away a response is.
[https://www.arc.id.au/UWAcoustics.html](More details)
Yes. Some things I haven’t seen mentioned yet:
Although water can’t be compressed there’s a few other factors.
Density changes with temperature, and it’s a lot colder at the bottom then the top.
There are air bubbles in the water, all of it. Although atmospheric air mixing by waves is unlikely to make it all the way to the bottom, biology produces gases via several different methods and gas can be compressed, which reduces the space between water molecules and increases the density.