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Radar Map of Buried Mars Layers Confirms Climate Cycles
Matt_dk writes "A radar instrument on the Mars Reconnaissance Orbiter has essentially looked below the surface of the Red Planet's north-polar ice cap, and found data to confirm theoretical models of Martian climate swings during the past few million years. The new, three-dimensional map using 358 radar observations provides a cross-sectional view of the north-polar layered deposits. 'The radar has been giving us spectacular results,' said Jeffrey Plaut of JPL, a member of the science team for the Shallow Radar instrument. 'We have mapped continuous underground layers in three dimensions across a vast area.'"
Douglas Quaid knew it already.
Yes, but does it coincide with the industrial revolution? Does it fit the hockey stick model?
-Turkey
Cue the global warming deniers in 3, 2, 1...
I can't wait until Mars warms up and gets some moisture. I'm already flipping through astronomy stores for telescopes that will let me watch the penguins from here.
Can we use this technology to map the layers of untold mystery buried in Rosie O'Donnell's fat thighs? Not that I WANT to, but who knows what we could find...Atlantis?
I better post this as anonymous, before the true believers mod me into oblivion. But if we see evidence of climate change on a planet that barely even has an atmosphere to speak of, maybe we're not giving the power our own sun enough scrutiny in the global warming debate.
The existence of natural climate change on Mars does not rule out anthropogenic climate change on Earth. The shifts in temperature on Mars happened over periods of hundreds of thousands of years. The climate change we're observing on earth has happened in less than 100 years. There's a huge difference between the two phenomena.
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While these results are cool, the obliquity cycle was confirmed in 2002, in a paper in Nature, Orbital forcing of the martian polar layered deposits by Jacques Laskar et al., They used pictures of the layering at the edge of the polar caps, not radar, but its basically the same idea, and they showed good correlation with recent obliquity cycles.
Again, it's cool to see these layers throughout the caps, but I don't think that anyone has doubted the connection with the obliquity / insolation cycles for a while.
The Council of Elders has declared tomorrow a day of commemoration. K'breel, Speaker for the Council, spake thus:
"By Gfa'rdmn, a little over half a year ago, our forces celebrated victory over the plumb-bob-waving monstrosity from the North, having slowly chilled it to death. The Invader from the Plains sits enmired in our sandpit. The Twin by the Crater has begun to stir, but it stood paralyzed by fear for sixty days by the mere sight of the spent husk of a Kinetic Bombardment Force component."
"So thorough has been our dominance of the blue planet's terror craft that they have not since dared to touch our red sands with their filthy metallic fingertips. Yes, their robotic spies continue to flail wildly around our great world - but despite dozens of passes over the pole, and countless radiofrequency emanations beamed down in an effort to re-establish communications with frozen hulk of the Invader from the North, their efforts have revealed nothing but ice! And they report these sightings of "nothing but ice" back to their puerile blue world as though this were somehow a great propaganda victory! The beings from the blue planet are impotent! Their efforts are futile! Rejoice!"
When a junior climatologist suggested that the overflights could perhaps have been part of an effort to use radar map the depth of our ice caps in order to better understand their own world's shrinking ice caps, K'Breel had the dissenter's gelsacs flash-frozen in liquid nitrogen, shattered with a hammer, and the resulting shards thawed in a microwave oven before subsequently roasting them on a spit.
How do Martians know whether it's the rainy season or dry season?
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The polar ice cap is 1 million cubic kilometers of water ice. Martian surface gravity is .375 g. Escape velocity is just over 5 kilometers per second. Summer temps are up to 20C. At 1.5 A.U., solar power is about 1/2 that of Earth per square measure. Mars has two moons ripe for mining.
Nobody owns it yet.
Help stamp out iliturcy.
who is so parroted into believing climate change that they will use an organization whose only reason to exist is to promote that agenda against you.
In other words, they are the Christians proving their stand by using the Bible. However since these people refuse to see beyond their own narrow view you are the new form of heretic.
Look, past facts don't matter, they have a document which claims that we are causing it. They can totally ignore the cooling trend over the last ten years, the major shift in sunspot activity which neatly explains other such periods, all because they have passed the point of reason and now it is a purely emotional issue.
That is how I know you know you did well on /. Getting modded flamebait or troll is an example you crossed the PC thresh hold. The amount of arrogance and ignorance is exhibited well by the moderation system or post bullshit moderation by the site owners who will take +5 insightful to troll/flamebait without record. The only place to hit a thicker wall of supposed know it alls is Wikipedia.
karma to burn, because I do know how to score it.
* Winners compare their achievements to their goals, losers compare theirs to that of others.
That summer trip next year is ON!
--- For a good time mail uce@ftc.gov
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... doesn't even particularly speak to whether or not there can also be anthropogenic climate change on Earth. Natural mechanisms don't preclude human influence.
Tweet, tweet.
the ofFicial GAY writing is on the partner. And if Endless conflict
Of all the ways we've managed to change the planet, are we sure that CO2 is the only factor? Take the Mars example, where wind may have darkened the surface just enough to raise the temperature. If this is true, what about the effect of roads and other man-made structures that do not reflect or otherwise absorb heat? Given the waste heat of most lighting systems, demonstrated by any picture of Earth at night, it's amazing how much heat we're injecting into the climate just because we want to read at night. Plant and animals have spent millions of years storing light and heat energy as biomatter, and eventually, fossil fuels. Now we're releasing all the energy all at once. Forget the CO2, we're pumping large amounts of IR and other heat into the environment through a variety of processes, and the focus is only on one molecule?
Heat causes Global Warming. Screw "Cap-and-Trade", we need a straight up BTU tax on anything and everything that has a temperature higher than ambient. This includes taxes on just being alive, too, although we should double it for politicians.
This is evidence that climate change is a natural phenomena of a planet regardless of industrial revolutions or hockey stick models. Is there any way we can censor this news so that Al Gore can keep making money from his carbon credit company? You know, the one he just so happened to start right before making his climate change movie? The same company he paid when it was pointed out that his mansion has a huge carbon footprint (i.e., he paid himself)?
Um, this is the arctic. When you melt that ice, the sea level will remain unchanged.
false. There is a density difference between salt water and 'regular' frozen water. The fact that you don't even know this basic 101 level science really disqualifies you from having any real interpretation of the facts.
Get some sea wter, put it o a glace add some ice cubes and mark the line. See where it is after it melts.
"But, again, we need to talk about significance."
as well as every glacier on the planet.
It doesn't take much of a rise to be significant.
And you link is suspicious. It has a graph that ONLY indicate volcanoes that happen before a cooling, but ignores every other major eruption.
You do understand they climatologist know about the normal cycles?
The Kruger Dunning explains most post on
Learn something new every day.
I read that as
Radar Map of Buried Mars Lawyers Confirms Climate Cycles
I suppose the climate change found on Mars was also caused by human activity.
Jumping in and blithering about how this disproves global warming.
Guys, we have had climate cycles and ice ages here on Earth as well. They're normal. Global warming is not the same thing.
Things arent that dire fool.
The planet has been in 100x worse conditions in the past and rebounded.
You know the real problem ? yes its man made, but its NOT climate change.
Its OVER FARMING, using too much water from water ground tables and from rivers leaving just a trickle. Massive amounts of water is wasted growing rice in dry areas, and growing STUPID cotton where canabis is 100x better - (stupid twit govts)
So dude, what happens when you over use water, less evaporates and less turns to clouds where less falls as rain because STUPID poor FL!CKS clear land and burn down forrests causing MORE dry arid regions.
Wake up call, less rain = less humidity = LESS ice on mountains = shrinking glaciers even if its COLDER than normal, coldness by itself doesnt replenish glaciers.
Whats the sollution? a man made virus to 'reduce populations' ? h1n1 perhaps?
Liberty freedom are no1, not dicks in suits.
You humans make me sick. Cutting down forrests for palm oils or other crap like cows.
Cows should be taxed $50000/cow.
Govts should offer a $1k tax refund for each tree in the backyard that is more than 10ft tall.
Stop buying wooden furniture unless its local woodchip from regrowth forrests.
Liberty freedom are no1, not dicks in suits.