Sentences with phrase «outgassing on»

An artist's impression of the dwarf planet Ceres, which appears to have a water vapor atmosphere from outgassing on the object.

SwRI scientists created a new model for impact - generated outgassing on the early Earth.

Not exact matches

Further calculations by Catling and his team conclude that no abiotic methane sources on a rocky planet could produce enough of the gas to counteract this process — whether it is volcanic outgassing from a planet's interior, chemical reactions in hydrothermal vents, even asteroid impacts.

Rosetta captured its shadow on 67P's surface (sixth row, far left), along with evidence of outgassing from the comet.

«We've got a spacecraft on the way to Ceres, so we don't have to wait long before getting more context on this intriguing result, right from the source itself,» said Carol Raymond, the deputy principal investigator for Dawn at NASA's Jet Propulsion Laboratory in Pasadena, Calif. «Dawn will map the geology and chemistry of the surface in high resolution, revealing the processes that drive the outgassing activity.»

Lauretta said OSIRIS - REx is healthy on the final months of its trip to Bennu, with engineers only monitoring a minor concern with outgassing coming from the craft's sample return canister heat shield and backshell.

Permafrost outgassing is similarly a major issue — and what about all the studies on the Southern Ocean sink saturation — they don't matter either?

Whether it overshadows the outgassing effect depends on timing and location.

Let us take for example something you touched on, ``... A big issue here is that any correlation between the two can be due to CO2 outgassing...» plus the argument that «the Medieval Warm Period was warmer than today» or «CO2 increases lag temperature increases by 800 years».

Interesting study out on the outgassing of CO2 from the northern Pacific to end the last glacial period:

These are the kinds of very complex space weather discussions that need to occur, and at the end of the day CO2 is DEPENDANT on these solar events as CO2 is ELECTRICAL from a conductivity standpoint in the oceans, connected to surface lows and outgassing and ocean surface ion counts.

There are lots of caveats about temporal resolution in the paleo data, and I'm probably not up to date on the latest, but the lags between warming and CO2 outgassing you mention were thought to be something like 800 years.

You know what?I still firmly believe that the Earth will stabilise at 1000ppm by the year 2150, and I firmly believe that methane outgassing from both the Arctic seabed and frozen terrestial permafrost will have a huge impact on this number, helping it to rise to 1000 ppm by the year 2150.

I read online within the past two weeks that Russian scientists were up in the northern oceans somewhere and they saw tons of hot spots of methane bubbling out from the ocean surface.I think it was in ScienceDaily.The question posed by these scientists was «is this outgassing a normal melting of methane that has been going on for many thousands of years, or, is it an upward tick of significance?»

Please provide cites and references for claims like this, especially on a thread that is precisely about exploring the quantitative consequences of this outgassing.

bozza @ 354, even emissions at 10 % of current rates would be sufficient to keep on increaseing atmospheric CO2 concentrations, and ergo prevent net ocean outgassing of CO2.

On longer term, this effect is countered by the increase of CO2 in the atmosphere: more CO2 in the atmosphere means a higher pCO2, thus a smaller difference in pCO2 over the warm oceans, thus reducing the outgassing of CO2.

Most interesting is that the about monthly variations correlate with the lunar phases (peak on full moon) The Helsinki Background measurements 1935 The first background measurements in history; sampling data in vertical profile every 50 - 100m up to 1,5 km; 364 ppm underthe clouds and above Haldane measurements at the Scottish coast 370 ppmCO2 in winds from the sea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly average

Sea ice, and the cold conditions it sustains, serves to stabilize methane deposits on and near the shoreline, [40] preventing the clathrate breaking down and outgassing methane into the atmosphere, causing further warming.

No, I don't know what those natural sources are, but I would place outgassing from the oceans high on the suspect list.

The very small amounts of methane on Mars are just outgassing of methane left over when Mars was formed.

However, followup work showed that when you zoom in on the scale, the temperature in each spike starts rising 800 years before the CO2 rises, implying instead that temperature is driving CO2 (via outgassing from oceans) rather than the other way around.

Have Z & C considered the fact that MLO lies in the exhaust plume of massive oceanic outgassing in the Eastern Equatorial Pacific, and that Keeling cautioned against relying on measurements near sources or sinks?

Even if no water is on your planet, there will still be outgassing.

I calculated using a simple converging series, that a feedback of 1.92 ° per doubling of CO2 would increase the effective rate of thermal outgassing from 12.5 ppmv / ° to your observed 15ppmv / ° on a basis of 200ppmv.

Pinning increase of CO2 on natural sources gives an outrageously high activation energy for outgassing.

He cites the outgassing of Co2 from oceans on p. 68, and in a talk of his that has circulated.

I don't need to explain it for my Model to remain valid.The concept of ocean outgassing in response to more sunlight is a useful add on but not an integral component because I do not ascribe significant climate forcing to that CO2.

How on earth does this outgassing lead to a net increase in the atmosphere when the ice is still melting?

RealClimate is wonderful, and an excellent source of reliable information.As I've said before, methane is an extremely dangerous component to global warming.Comment # 20 is correct.There is a sharp melting point to frozen methane.A huge increase in the release of methane could happen within the next 50 years.At what point in the Earth's temperature rise and the rise of co2 would a huge methane melt occur?No one has answered that definitive issue.If I ask you all at what point would huge amounts of extra methane start melting, i.e at what temperature rise of the ocean near the Artic methane ice deposits would the methane melt, or at what point in the rise of co2 concentrations in the atmosphere would the methane melt, I believe that no one could currently tell me the actual answer as to where the sharp melting point exists.Of course, once that tipping point has been reached, and billions of tons of methane outgass from what had been locked stores of methane, locked away for an eternity, it is exactly the same as the burning of stored fossil fuels which have been stored for an eternity as well.And even though methane does not have as long a life as co2, while it is around in the air it can cause other tipping points, i.e. permafrost melting, to arrive much sooner.I will reiterate what I've said before on this and other sites.Methane is a hugely underreported, underestimated risk.How about RealClimate attempts to model exactly what would happen to other tipping points, such as the melting permafrost, if indeed a huge increase in the melting of the methal hydrate ice WERE to occur within the next 50 years.My amateur guess is that the huge, albeit temporary, increase in methane over even three or four decades might push other relevent tipping points to arrive much, much, sooner than they normally would, thereby vastly incresing negative feedback mechanisms.We KNOW that quick, huge, changes occured in the Earth's climate in the past.See other relevent posts in the past from Realclimate.Climate often does not change slowly, but undergoes huge, quick, changes periodically, due to negative feedbacks accumulating, and tipping the climate to a quick change.Why should the danger from huge potential methane releases be vievwed with any less trepidation?

DENIAL MYTH # 1: The source of all the CO2 in the air is outgassing from the mantle (Source: George V. Chilingar's (of the Department of Civil and Environmental Engineering, University of Southern California) paper titled On global forces of nature driving the Earthâ $ ™ s climate.

The net impact of the 2015 — 2016 El Niño event on the global carbon cycle is an increase in atmospheric CO2 concentrations, which would likely be larger if it were not for the reduction in outgassing from the ocean.

Strong AGW supporters on the other hand argue that while the sun may have caused the initial temperature spike and outgassing of CO2 from the oceans, further temperature increases were caused by the increases in CO2.