Previous in Forum: Strangest Hunting Method   Next in Forum: Safe Distance for Pressure Testing?
Close
Close
Close
15 comments
Rate Comments: Nested
Active Contributor

Join Date: Feb 2007
Posts: 18

Salty Vs. Fresh Water

02/17/2008 6:47 PM

Water spouts encountered at sea is i expect sea water going up to make clouds. If this is so, why doesn't it rain salty water on the other hand if it is fresh water going to make clouds from the sea then the low pressure area sucking the water up must cause the salt to precipitate out of the water .is this so.

Peter

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
Guru
Engineering Fields - Environmental Engineering - New Member APIX Pilot Plant Design Project - Member - New Member

Join Date: May 2007
Location: Anywhere Emperor Palpatine assigns me
Posts: 2774
Good Answers: 101
#1

Re: water.

02/17/2008 11:44 PM

Rainwater is condensed from evaporated water from all sources. Waterspouts do suck up some seawater, but they are diluted by the freshwater in the rain.

__________________
If only you knew the power of the Dark Side of the Force
Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#14
In reply to #1

Re: water.

02/26/2008 9:11 AM

True. The important thing is that salt gets taken up in the liquid phase. The vapour phase is largely free of salt.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
3
Guru

Join Date: Oct 2006
Location: New Jersey U.S.A.
Posts: 1114
Good Answers: 38
#2

Re: Salty Vs. Fresh Water

02/18/2008 11:45 AM

In the immediate area of the cyclone, if your unfortunate to be close enough, you would be drenched in salt water. The water is held in the vortex of the cyclone only. Once it reaches the upper area, it is tossed out or held in place. The water in the surrounding clouds is water vapor and as stated previously, is made up of fresh water through evaporation. Once the vortex collapses only fresh water vapor would remain aloft with minor amounts of salt water contamination included.

Any salt present would add weight to the cloud and water droplets and fall to the ground quicker than the fresh water clouds.

__________________
The last fight was my fault. My wife asked "What's on the TV?" I said "Dust!"
Register to Reply Good Answer (Score 3)
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#3

Re: Salty Vs. Fresh Water

02/18/2008 7:18 PM

Hello aussiviking

Fish, frogs, birds, and jellyfish, have fallen from clouds, after being sucked up by a waterspout.

Further information on Raining animals

The salt content of seawater sucked up by a waterspout, is quickly diluted by the mass of fresh water in the cloud, as explained by other Posters above.

Thus seawater creatures, if carried far, normally fall in a dead state.

Fish and other small creatures may be carried for hundreds of miles, in a major storm, and can be a danger to aircraft passing through such a storm.

Kind Regards....

__________________
"The number of inventions increases faster than the need for them at the time" - SparkY
Register to Reply
Associate

Join Date: Nov 2007
Posts: 33
Good Answers: 3
#4

Re: Salty Vs. Fresh Water

02/19/2008 4:55 AM

I figure it would be noteworthy to mention that fresh water would boil and evaporate at much lower temperatures than seawater.

If there are going to be clouds, I'd expect you would have to first evaporate all the fresh water before we start evaporating any sea water.

Am I wrong?

Register to Reply
3
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#5
In reply to #4

Re: Salty Vs. Fresh Water

02/19/2008 5:03 AM

Hello robert_cameron_jr

Water evaporates at standard air pressure, at any temperature above freezing point.

Whatever the water contains in solution, evaporates at different pressures and temperatures.

So you might call the Hydrological Cycle as being a planet-sized fractional distillation apparatus.

In evaporation, most of the salt is left behind.

In New Zealand's West Coast of the South Island, the Southern Alps, with an average heigh of 6,000 feet, and a steady wind from the west, have high rainfall, as the water drops out of suspension in the air as it cools while ascending.

That rain has a higher proportion of included salt, as can be noted in almost any seaside area, if you leave iron or steel objects unpainted or un-galvanised, because these unprotected items corrode really quickly.

Kind Regards....

__________________
"The number of inventions increases faster than the need for them at the time" - SparkY
Register to Reply Good Answer (Score 3)
Associate

Join Date: Nov 2007
Posts: 33
Good Answers: 3
#6
In reply to #5

Re: Salty Vs. Fresh Water

02/19/2008 9:23 AM

Sparkmaster

I suppose I am confused with evaporation and boiling.

My memory spits out "dissolving salt in water will raise the boiling point of the water".

I suppose evaporation is still taking place, as you say, but at a slower rate, maybe?

Thanks for the info.

I think my head has more holes than it was meant to, and sometimes information drips out!

Cheers!

Register to Reply Off Topic (Score 5)
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#8
In reply to #6

Re: Salty Vs. Fresh Water

02/19/2008 4:26 PM

Hello again, robert_cameron_jr

A good and simple weblink is here: Water Cycle

When you've read that, and clicked on the hyperlinks there, you should easily understand how the system was designed to work so well.

Kind Regards....

__________________
"The number of inventions increases faster than the need for them at the time" - SparkY
Register to Reply
Associate

Join Date: Nov 2007
Posts: 33
Good Answers: 3
#9
In reply to #8

Re: Salty Vs. Fresh Water

02/20/2008 4:08 AM

Cheers!

Register to Reply Off Topic (Score 5)
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#15
In reply to #6

Re: Salty Vs. Fresh Water

04/08/2025 10:28 AM

The terms <...evaporation...> and <...boiling...> are two terms for the same thing: the turning of liquid to vapour by the application of a source of heat. In <...evaporation...>, the heat source is dilute, such as incoming sunshine; in <...boiling...> the source of heat is more intense, such as a fire or an electric element..

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Commentator

Join Date: Feb 2008
Location: Connecticut shoreline
Posts: 67
Good Answers: 5
#10
In reply to #5

Re: Salty Vs. Fresh Water

02/21/2008 1:22 PM

Sparky, water also evaporates below freezing, through a process called sublimation.

Register to Reply
Guru
New Zealand - Member - Interested in everything- see my Profile please APIX Pilot Plant Design Project - Member - Member Engineering Fields - Electrical Engineering - Member Engineering Fields - Power Engineering - Member Engineering Fields - Civil Engineering - Member Hobbies - Musician - Autoharp and Harmonica Hobbies - Hunting - Member Hobbies - Fishing - Member

Join Date: Nov 2007
Location: Christchurch, (The Garden City), South Island, New Zealand
Posts: 4395
Good Answers: 230
#11
In reply to #10

Re: Salty Vs. Fresh Water

02/21/2008 3:14 PM

Hello Fierce Allegiance

Thank you for mentioning that process of water sublimation.

That sublimation process, like any evaporative process of water, does depend on the humidity level in the air at the time.

High Humidity, and your block of ice increases in mass, low humidity and your block of ice decreases in mass.

A marvellously designed system, which evens out things rather well.

Kind Regards....

__________________
"The number of inventions increases faster than the need for them at the time" - SparkY
Register to Reply
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#13
In reply to #4

Re: Salty Vs. Fresh Water

02/26/2008 9:08 AM

<...fresh water would boil and evaporate at much lower temperatures than seawater....>

Nope. There is no significant difference. All that happens is that the water just boils/evaporates and leaves the salt behind. Steam tables can be applied just as well to salt water as they can to fresh.

__________________
"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Guru
Popular Science - Weaponology - Cardio-7

Join Date: Oct 2006
Posts: 621
Good Answers: 10
#7

Re: Salty Vs. Fresh Water

02/19/2008 10:54 AM

The clouds and precipitation are from evaporation of water. However, there is some salt taken up into the atmosphere, primarily due to wind action associated with waves, etc. One can detect salt in the air quite a long way from the oceans.

Register to Reply
Guru

Join Date: Jul 2006
Location: Silicon Valley
Posts: 5356
Good Answers: 50
#12
In reply to #7

Re: Salty Vs. Fresh Water

02/23/2008 3:06 AM

But that still doesn't negate the scientific fact that storms are caused by Odin, and thunder and lightening by Thor!!! I know, 'cause I've seen the comic book.

__________________
"Perplexity is the beginning of dementia" - Professor Coriolus
Register to Reply
Register to Reply 15 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

Cardio07 (1); charsley99 (1); DVader1000 (1); Fierce Allegiance (1); PWSlack (3); robert_cameron_jr (3); Sparkstation (4); vermin (1)

Previous in Forum: Strangest Hunting Method   Next in Forum: Safe Distance for Pressure Testing?

Advertisement