Forum menu
If you have flooding that effects the entire world, how would you describe that event?
World flood, is being used as that's how those who experienced it in the past described it, as well as a world storm which is also handy because it gives us an incite into the cause of the flooding.
We as a lot of you have mentioned previously have a record of great floods caused by rain or storms, the floods from the Bible or Torah and an exodus of animals and plants in a ship, however both of those records are translations of a much older Egyptian text in my opinion.
It is not possible for us to determine how accurate those accounts are, however we can say that those floods were caused by torrential rain fall that lasted for a prolonged period.
If we are seeing rain of biblical proportions now, how much would we estimate would fall in the time scale mentioned in the bible? also if we use our current rain / water levels now and then increase them over a suitable period until they are in line with those time scales mentioned in the bible, how long do we think we have at the current rate of deterioration until the situation becomes untenable?
As for seismic activity, recently there have been quite a few major catastrophic events for our race and although events like these happen more regularly than I would like, those of recent years have been quite unrelenting and large in scale, even compared to other similar events in the past.
Not only are we seeing activity from Iceland's volcanoes but we are also seeing activity from Etna as well, I personally have to give my own experiences priority over what I am being told, having been affected by flooding and an active volcano recently our country needs to start asking questions.
Also when I look at the earth quake that affected japan, japan is constantly being hit with earth quakes, they are a simple way of life over there, all of their defenses, strategies and counter measures are formed with earth quakes in mind. Yet look at the magnitude of the earth quake that hit them and the amount of devastation it caused.
http://www.ouramazingplanet.com/1229-japan-earthquakes-surprising-rupture-110420.html
What we are seeing is several earth quakes worth of energy being expelled, over a prolonged period. However in my opinion conditions exist in this same area for a much larger quake, not only is it possible, I would consider it a matter of time before we see a greater more devastating quake strike Japan, in the near future.
After skimming a few answers: I haven't got time to check the detail as the MTB club rides out shortly:
Given the climatic zones a world flood from regular weather is nigh on impossible. A big meterorite landing in the sea might evaporate enough water to produce rain over the whole planet.
The Med dried up and filled a few times as evaporate deposits indicate. Quite recently in geoligical terms but before man turned up a couple of million years ago.
Glaciation cause sea levels to fall and the sea level is currently rising. Sea level changes are on the scale of tens of metres for smaller glaciations and more than 100m for the really big ones. If what's left of the ice melts then we'll lose a lot of coastal cities and the coast line will change but not much when viewed from space. The last glacaiation wasn't a particularly powerful one so sea levels didn't drop more than a few tens of metres. Plates rebound when the weight of ice is removed so some areas rise.
Plate tectonics build mountains and create ocean trenches. These changes are very slow taking place over tens of millions of years. Plates crash, mountains rise and trenches form, the mountains are eroded and the sediment dumped in the seas leveling things out. Even in the calmest tectonic periods there's still a lot left sticking out though.
Plate tectonics flod area
Edukator is it possible for continents or plates to sink and rise or even drift at any kind of decent speed?
Before I forget, think about all of the water released from the ice caps melting but also from the rain forests being cut down, that water will then be incorporated into already existing weather systems.
World flood, is being used as that's how those who experienced it in the past described it, as well as a world storm which is also handy because it gives us an incite into the cause of the flooding.
the world wasn't very big a few thousand years ago. a single village would have been the whole world for those who lived in it - if the village flooded, it would have seemed as if the whole world had been flooded.
the inundation of the black sea would have been a bit scary - but even that can not be described as a 'world flood'
is it possible for continents or plates to sink and rise or even drift at any kind of decent speed?
when continental plates decide to really get a shift on, they can zip around at several centimetres/year.
although earthquakes can cause movement of a few metres, in a few minutes...
Can anyone tell me if the moment magnitude scale takes into account the duration of the quake?
http://en.wikipedia.org/wiki/Moment_magnitude_scale
If I wanted to study all seismic activity for these large scale seismic events, in terms of the actual quake. how the energy manifested, how long it lasted also it characteristics and then any activity in the area it happened leading up to the quake and then afterwards?
Are there any webs sites or any way to get this info?
The water that falls as rain actually comes from the sea in the first place. So the increase in sea level that would come from all the rain is counteracted by the drop in sea level from the air sucking up the required water.
Re seismographs - you might find some in news sites or something, but probably not for all quakes.
Remember, even if [b]all[/b] of the sea-ice melts the water level will not rise. It's only land-based ice that causes this affect.
is this research for some sort of doomsday cult?
7.4 magnitude quake yesterday El Salvador.
http://www.emsc-csem.org/Earthquake/earthquake.php?id=282957
How much power/energy does something like that have? anyone actually have experience of quakes or eruptions?
7.4 magnitude quake yesterday El Salvador.How much power/energy does something like that have?
[url= http://lmgtfy.com/?q=how+much+energy+in+a+magnitude+7.4+earthquake ]let me google that for you[/url]
Magnitude is a measure of power- think of it like throwing a 5 magnitude stone in a lake or a 7.4 magnitude one in a lake. Which has the most power?
Note also it is a logarithmic scale [ ordinal is 1 , 2 ,3 etc where the gap is always the same with this logarithmic scale
an increase of one step on this logarithmic scale corresponds to a 10 to power of 1.5 or 32 times increase in the amount of energy released, and an increase of two steps corresponds to a 10 to the power of 3 = 1000 times increase in energy.
The magnitude is a measure of the energy at the point of the earthquake just like we could measure the power of the "magnitude stone" thrown in to the water or the moment magnitude.
http://en.wikipedia.org/wiki/Moment_magnitude_scale
Had a tremor a few times in the UK but never anything large
Why can't we just measure the earth quake and judge it by what occurs within each second of continuous seismic activity and also apply any other techniques but within that one second segment time frame.
I want to see exactly what is happening in a wave format with all relevant info, every aspect of the earth quake that we can monitor and observe the patterns of, should be monitored.
Surely there is a better way with 40+ years of technological advancement, to monitor seismic activity?
druidh - MemberRemember, even if all of the sea-ice melts the water level will not rise. It's only land-based ice that causes this affect.
Though, the impact on salination levels and currents would still be interesting.
Also, the penguins'll be right pissed off, and I know what I'm more worried about.
kaesae - MemberWhy can't we just measure the earth quake and judge it by what occurs within each second of continuous seismic activity and also apply any other techniques but within that one second segment time frame.
I want to see exactly what is happening in a wave format with all relevant info, every aspect of the earth quake that we can monitor and observe the patterns of, should be monitored.
Surely there is a better way with 40+ years of technological advancement, to monitor seismic activity?
That's exactly what they do! You've never seen a seismometer? But you have to summarise that information in order to get usable data when you're dealing with large samples.
Druidh, wouldn't the ice that is above the water level add to our current situation and the more ice that melds the more volcanoes will become active or more active in terms of the ones that are already active.
[quote=kaesae ]Druidh, wouldn't the ice that is above the water level add to our current situation No - ice is less dense than water.
I'm not getting the link between water ice and vulcanism.
wouldn't the ice that is above the water level add to our current situation
Eureka!
kaesae - Member
Do we know for certain if our sun effects the weather on this planet?
Holy f&%*ing s&^t, sorry, it's and old post... but seriously
Holy f&%*ing s&^t again, wo... I need a cuppa tea
I'm not getting the link between water ice and vulcanism.
[img] 
[/img]
and the more ice that melds the more volcanoes will become active or more active in terms of the ones that are already active
by what mechanism are you suggesting that melted ice water affects volcanoes?
Polar ice melting is an indicator of the warming process, this is happening quicker than the most pessimistic forecasts of last year, weather systems are affected immediately, then the follow on of crops, etc, never mind flooding, the whole fragile system that first world has taken for granted is seemingly about to crash, what is the response,--drill for more oil and gas in the arctic !!!!!
A lot of good arguments, especially liked the ice cubes in a cup to explain how mountains of ice, well actually hundreds of billions of tons of ice melting isn't having any effect, I feel truly relieved.
I think the problem you will find from a separatist view point is that you see everything as being separate, when in fact everything that exists on this planet is part of a symbiotic relationship or eco system.
When you have cold at the poles or ice caps and heat in the middle of the two you have the ability to cycle large amount of energy in the form of weather, however when you lose the icecaps you lose that ability for the planet to store and control energy flow.
We went through an ice age now we are entering a period of heating up, if the planet can cool down to that degree, can it not heat up as well?
thermohaline circulation.
dump that much fresh water into the ocean and the heat exchange process will alter dramatically. if you dont think the oceans ability to circulate heat will affect us in the uk i suggest you look at other places situated at the same latitude as us.
(sorry if this has been said, i dont have time to read the whole thread)
especially liked the ice cubes in a cup to explain how mountains of ice, well actually hundreds of billions of tons of ice melting isn't having any effect, I feel truly relieved.
🙄 It's a nice simple visual demonstration of the physics to explain why melting sea ice doesn't cause the sea level to rise.
I'm not saying it [i]"isn't having any effect"[/i], obviously it does (e.g. salinity levels, currents, sea temperature, reduced solar reflection), but the melting of floating sea ice doesn't cause water levels to rise, only land-based ice does that.
We went through an ice age now we are entering a period of heating up, if the planet can cool down to that degree, can it not heat up as well?
Hmmm... novel idea... let's call it [i]"global warming"[/i]....
my Street flooded today.
Doomed!
Is the cellar OK?
* awaits flood sale *
mountains of ice, well actually hundreds of billions of tons of ice melting isn't having any effect, I feel truly relieved.
If the sea ice melts, the land ice probably would too, so we'd still be in trouble.
I think jonah tonto has hit the nail on the head for one part of this debate, which part I am not sure 😀
The part that says that if the Atlantic conveyor slows down due to the amount of fresh water entering the Arctic ocean from rivers if all the ice melts then the UK will have even more dismal weather than at present. They were trying to measure the flow with the electrical potential caused by the water flowing over telephone lines or something like that. I wonder how they got on and if it really is slowing down.
you will find from a separatist view point is that you see everything as being separate, when in fact everything that exists on this planet is part of a symbiotic relationship or eco system.
Perhaps you could explain why/how melting polar caps affect volcanoes?
I think folk have realised that many things are interrelated - why not Google Gaia I have a feeling you will like it { i dont fwiw]
i'm the kind of interesting guy that likes a good graph - especially those that get updated on a daily basis, i love the anticipation of waiting for another update.
i know they're using satellites and that, and global climate is ready to go all 'day after tomorrow' all over the place, but... this can't be right, can it?
[img] 
[/img]
that's bad, right?
All sounds interesting to me.
As for my own experiences, I got caught in a torrential downpour yesterday and watched 2" of rain form on the roads within about 5 mins.
A few days of that kind of weather would cause widespread flooding.
As far as I'm concerned massive storms and floods are a very real potential threat and I have and will continue to put measures into place to increase my chances of dealing with them if and when they do occur.
Yes but as land ice melts the compression of the earths crust would diminish so in certain areas the sea level would drop for a period of time.
that's bad, right?
Mmmm.. that's quite a scary graph!
A few days of that kind of weather would cause widespread flooding.
We've had two big tropical-style thunderstorms with very heavy torrential rain and very widespread flooding in Newcastle this year.
Quite impressive just how quickly a bit of rain completely paralyses a city.
Within an hour we had roads flooded, bridges/tunnels shut, traffic at standstill, trains stopped, drains exploding, walls and roofs collapsing and people being swept off their feet.
Rain like that over a few days would be devastating to an area. 😕
as land ice melts the compression of the earths crust would diminish so in certain areas the sea level would drop for a period of time.
Surely that would only be a very local effect around the land areas that no longer had several billion tons of ice pushing down on them?
as land ice melts the compression of the earths crust would diminish so in certain areas the sea level would drop for a period of time.
Its called "isostatic adjustment" and is quite prevalent in the northern half of the UK. Sea level remains the same but the portion of the crust that was covered with ice rebounds upwards when the weight of the ice is removed.
Surely that would only be a very local effect around the land areas that no longer had several billion tons of ice pushing down on them?
Yep and there would also be a limited effect as in the crust would decompress and then eventually the sea would rise as the crust got to its 'nominal' position.
Plus I just wanted to ad another thing into the mix to make the thread go on a bit longer.
They had photos of Arctic ocean ice coverage over the last few years on French TV news last night. The retreat is even more graphic than the graph. 40% less is a figure I remember form the report but I can't remember over how long. Average thickness of sea ice down to 2m from 3m.
A lot of good arguments, especially liked the ice cubes in a cup to explain how mountains of ice, well actually hundreds of billions of tons of ice melting isn't having any effect, I feel truly relieved.
That's sarcasm right ?
I think he meant just in terms of sea level rising tbh not in general
that's bad, right?
Especially if you are a Polar Bear
Don't worry, it's not as if there is a [url= http://www.guardian.co.uk/environment/2012/aug/29/antarctica-methane ]Vast reservoir of methane locked beneath Antarctic ice sheet[/url]...
Oh. 😯
Good point GrahamS, what exactly is locked up in the ice and under the ice?
Not only do we have to worry about gasses and other threats, but what kind of viral and bacterial microbes could be preserved within the ice?
If I read that correctly - Sunbathing in Antarctica here we come. ZING
Good point GrahamS, what exactly is locked up in the ice and under the ice?
[img]
[/img]
That looks like quite a few of the locals where I live, except they have less teeth.