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> This sphere includes all of the water in the oceans, ice caps, lakes, rivers, groundwater, atmospheric water, and even the water in you, your dog, and your to
by umvi 2y ago
> This sphere includes all of the water in the oceans, ice caps, lakes, rivers, groundwater, atmospheric water, and even the water in you, your dog, and your tomato plant.
Does it include water in the mantle? (https://www.bnl.gov/newsroom/news.php?a=111648 https://www.bnl.gov/newsroom/news.php?a=111648)
or other non-liquid water for that matter like hydrates (ebsom salts, etc)
- moralestapia 2y agoNo, it doesn't. It includes all of the water in the oceans, ice caps, lakes, rivers, groundwater, atmospheric water, and even the water in you, your dog, and your tomato plant.
- FredPret 2y ago"Groundwater" is a little ambiguous - H2O in the mantle is also "ground water", no?
- moralestapia 2y agoIt's not. The mantle is hundreds of kilometers further down.
- pfdietz 2y agoNo, that "water" is actually hydroxyl groups in minerals.
- chrisco255 2y agoNo it comes out of the tap as water.
- mkl 2y agoNo tap water comes from the mantle.
- ClumsyPilot 2y agoYou just need a new plumber
- mr_toad 2y agohttps://en.wikipedia.org/wiki/Project_Mohole https://en.wikipedia.org/wiki/Project_Mohole
- chrisco255 2y agohttps://newatlas.com/mariana-trench-water-mantle/57239/ https://newatlas.com/mariana-trench-water-mantle/57239/
- pfdietz 2y agoThat's water going into the mantle.
- DiggyJohnson 2y agoNo, it’s completely inaccessible. Unless you are just playing word games, then sure.
- ClumsyPilot 2y agoGeologically it probably isn’t. If all surface oceans disappeared, some of that water would likely come out to the surface and form new bodies of water, over millions of years.
- stcredzero 2y agoThe sphere for all liquid water seems to be close in size to the asteroid Ceres. https://lightsinthedark.com/wp-content/uploads/2013/06/ceres-and-earth.jpg https://lightsinthedark.com/wp-content/uploads/2013/06/ceres...
- dylan604 2y agoBut would this sphere of water have enough mass to hold itself together as a sphere in space? Put aside it freezing into a ball of ice as a thought exercise.
- jesprenj 2y agoFreezing? Wouldn't it boil instead due to the low pressure?
- dylan604 2y agoi knew there would be someone to just try to get out of the answer by failing to just go with the spirit of the question by being pedantic. even my own attempt at dispel pedantry just allowed for even more pedantry.
- Dylan16807 2y agoI don't know what you wanted. If you wanted to ask whether that amount can hold together and become spherical, then just by comparing to Ceres doesn't that make it plenty? It's not crazy to interpret "hold itself together" as more complex and including vapor escape.
- Retric 2y agoGoing from a liquid to a gas takes energy, which rapidly lowers the temperature of what remains. Net result most of the water freezes without some external energy source. Sublimation then lowers the temperature of the ice until near absolute zero, again unless there’s some external energy source.
- 2y ago
- marcosdumay 2y agoYep, it's quite misleading since the region where they looked for water at all is an incredibly thin layer on the outside of the planet, but they show it all as if it applied to all of the volume.
- DiggyJohnson 2y agoThere’s nothing wrong with their representation. You’re describing a different comparison.
- marcosdumay 2y agoIt's not bad on purpose if that what you understood. But the comments here are full of "it's so little!" variants, where if you took the rest of the Crust and smashed as a sphere, it wouldn't be much larger than the water one. It did evidently mislead a large number of people.
- IncreasePosts 2y ago[flagged]
- Sparkyte 2y agoSame question I've got, but I imagine USGS is only considering reachable surface, atmospheric water.
- Pat_Murph 2y agoThe wording of the legend description says all the war in, on and above the earth so we have to assume that is does take it into account.
- dredmorbius 2y agoSources say otherwise, see my immediate prior comment.
- YVoyiatzis 2y agoWater dissolving and removing There is water at the bottom of the ocean
- dredmorbius 2y agoGiven that the quantity of water in the mantle is thought to be equivalent to that in all the oceans (large drop), I'd presume not. The mantle-water research is fairly new, with this report from 2017: "There’s as much water in Earth’s mantle as in all the oceans" <https://www.newscientist.com/article/2133963-theres-as-much-water-in-earths-mantle-as-in-all-the-oceans/ https://www.newscientist.com/article/2133963-theres-as-much-...> The USGS detail pages are based on a 1993 publication, Igor Shiklomanov's chapter "World fresh water resources" in Peter H. Gleick (editor), Water in Crisis: A Guide to the World's Fresh Water Resources (Oxford University Press, New York). <https://www.usgs.gov/special-topics/water-science-school/science/how-much-water-there-earth https://www.usgs.gov/special-topics/water-science-school/sci...> and <https://www.usgs.gov/special-topics/water-science-school/science/where-earths-water https://www.usgs.gov/special-topics/water-science-school/sci...>