Home Forums Hunting & Shooting Hunter's Campfire Rising sea levels

Just curious of the physics behind this.
Floating ice, it seems to me, would displace water in proportion to it's own (total) volume. So how do we get an increased sea level?
The ice is less dense than liquid water, so part of the ice sticks above the water, but isn't the water volume of the ice the same as the water it displaces?

Melting ice in salt water decreases density, which increases volume.

Ice on Greenland and Antarctica needs to melt to get substantial sea level rise.

Pretty much, its not the melting of sea ice that cause levels to rise, it is the melting of land ice that drains into the oceans that leads to sea level rising. It's like adding ice cubes to a glass of water. Both Greenland and Antarctica contain vast amounts land locked water.

Again, the OP asked about FLOATING ice. I'm not debating how much it would take to show any type of significant change.

Just that floating ice is fresh water, fresh water is less dense than salt water. When ice melts, you add more fresh water to the salt water, which decreases the density and increases the volume.

All I know is that raising sea level about 30 feet will solve most of the country's problems.

But when fresh water in an iceberg is floating on sea water, it displaces just as much sea water as it will displace once it melts.

It's true that ice is fresh water and when it melts it reduces the density of the ocean. However, considering the total volume of sea ice compared to the total volume of the oceans, if it all the sea ice melted, would it make any practical difference in the final volume and sea level?

How many places that are reported as the ocean is rising when it actually the land is subsiding?

Jim

Thank you.

In the beginning, God set the limits of the waters so they would not transgress their boundaries. Don't reckon that'll change until He decides different.

Have God explain that to New Orleans, willya? And then to the Thai folks after the tsunami. And the Japanese after theirs. And...

That's one of the reasons why sea level is notoriously hard to measure.

^^^ Rocky, the answer is simple .. phrased in Reloader28's vernacular, it appears that He has decided different. Apparently he didn't seek Reloader28's approval first.

It makes me laugh when people invoke God's omnipotence when it furthers their position in a debate, then turn around and act as if he needs their permission if that'd further their position. Hypocrites.

Tom

it's not God's fault that the idiots keep building New Orleans below sea level. Not God's fault that folks tend to build at the water's edge either.

it's always been a puzzle to me that there's not more holes in the ocean bed that allow more of the water to seep down and turn to steam down closer to the Earth's core. but I guess the ground is mostly impervious.

I wish hunting seasons would hurry up and get here.

New Orleans is built below sea level. If you're stupid enough to do that, expect a good flood every so often.
Tsunamis are the result of undersea earthquakes. We're prone to quakes everywhere on earth. If you fear quakes on land, don't live near faults. If you fear quakes under water, don't live near the coast. They're not related to rising seas. If you drive down the Oregon coast, there are hundreds of houses and whole towns built on cliffs above the water. Even a gentle quake will put them all below sea level.

My question is related to Reloder's claim that waters cannot rise unless God wills it. Therefore, if the waters rise it must be God's fault. And if that is true, then kindly tell NASA that burning fossil fuels has nothing to do with it.

The issue is not the floating ice as it is already part of the total volume. The increase in sea levels will come from the glaciers that are on the land and when then calve or melt become part of the total volume of whatever sea they dump/drain into. 8th grade physical/Earth Science class, i remember it well.


Too many climate deniers fail to see there is a difference between ice that has already calved the ice that is still terrestrial.

Quiz on friday!