Sentences with phrase «what ice core»

In fact, that's pretty much what ice core data is.

I thought I might follow up the comments on that thread by looking at what the ice core records actually tell us about variations in CO2.

There have been a variety of discussions in the past week about what ice core data tells us.

Since ice cores are a measure of the water in the ice, what the ice core is actually measuring are the conditions of the oceans that the water originally evaporated from.

This is in fact what the ice core records show — warming precedes CO2 rise by hundreds of years, repeatedly.

That is, the opposite sequence of events to what the ice core records indicate for interglacial periods of the past 650k years.

I am not sure what the ice core records are related the time response of CO2 to the cooling trends.

But what the ice cores show is that when the Earth begins to warm for other reasons, more CO2 is released from the ocean, and rising CO2 levels then drive the increase in temperature, causing over 90 percent of the total warming.

What the ice cores really provide though is a natural ceiling for the total «natural» level of CO2 in the atmosphere.

And in Copenhagen, we learn what ice cores have told us about abrupt jumps in past climates.

We are now about 100 ppmv above what the ice cores say as the «normal» CO2 level for the current temperature.

Not exact matches

I could go on, but the fact of the matter is, if you use just the bible to map out a timeline it's a little wonky but doable because for over 2000 years its had revisions and edits so that it would make more sense, if you want to really look the history of the world through geology, ice core samples and what not, it'll paint a very different picture.

What will ice cores in the next century say about our civilization — will there even be ice caps left to look at?

To build a picture of the habitat as it crept out of the Ice Age, Willerslev's team analysed DNA in cores taken from beneath two lakes in what was the last stretch of the corridor to melt.

The two ice cores from Denali benefited from high levels of snowfall, providing what Osterberg says is «amazing reproducibility» of the climate record and giving the researchers exceptional confidence in the study results.

Using data from a 3053 - meter - long core of ice and bedrock collected from the center of the island in 1993, Schaefer's team has found valuable clues to what the period held.

«The anomaly was detected in much more limited measurements of the Byrd ice core in the 1990s,» notes McConnell, «but exactly what it was or what created it wasn't clear.

Finally, eDNA from Antarctic ice cores promises to reveal what happened in the Southern Hemisphere many thousands of years ago.

The question now, experts said, is what the discovery of the bottoms - up ice formation means for efforts to understand ice sheet behavior and to investigate past climate by extracting ice cores.

Understanding how that would affect the climate will require going beyond historical records of climate change, or even the information encoded in tree rings or ice cores, to what scientists call «deep time» records of conditions on Earth, according to a new NAS analysis.

Since then scientists have been studying samples of the bottom core for clues to what might lie beneath the ice.

Puncak Jaya is the only place to get ice core data from the western side of what's known as the Pacific Warm Pool the single largest heat source to the global atmosphere.

Alley, R.B. Ice cores and SeaRISE — What we do (and don't) know.

While it is still unknown what time interval ice cores may document, they have the potential to give us incredible insights into past climate, atmospheric composition and variability in the all important Southern Westerly Winds.

In summary, the ice core data in no way contradict our understanding of the relationship between CO2 and temperature, and there is nothing fundamentally wrong with what Gore says in the film.

What is it about studying climate science that gives one unique insite into whether ice cores make accurate temperature proxies?

So what is the time difference between CO2 levels during the onset of a cooling period at the end of a warming period and the time history of the temperature changes in the ice cores?

The point of this post is that the ice core data are entirely consistent with what we already knew (and have known since 1896 A.D. when Arrhenius published his climate sensitivity calculations).

These bubbles tell scientists what gases were in the atmosphere, and based on the bubble's location in the ice core, what the climate was at the time it was sealed.

With Ice Cream Sandwich one of the things that we did in order to enable more consistency and more ease of developer portability, was it was required that from Ice Cream Sandwich onwards, the core widgets and framework themes were always included, so that developers can target them and have their application look, feel, and work more consistently no matter what skin has been put on it.

So far Fujitsu has been a little shy on the details, however what we can tell you is that it will feature Android 4.0 Ice Cream Sandwich and a Tegra 3 quad - core processor from Nvidia.

What we're doing here is showing how these two prime examples of nicest and newest tablet hardware on the market for each of these two beasts» operating systems, with the iPad running iOS and the Transformer running Android 4.0 Ice Cream Sandwich - these tied directly to the power of the units» processors: the A5X from Apple and NVIDIA's Tegra 3 quad - core processor with 4 - PLUS - 1 technology.

For another, much as I respect the National Academy, and the various members of the panel that did that assessment, it was in the end their informed opinion being expressed, and there are actually quite a few factual errors in that report (indeed, Steve McIntyre and I had a rare moment of agreement on this, regarding what they said about ice core records in Antarctica).

What the medical «experts» have missed is the fact that someone receiving a diagnosis of cancer will tend to smoke even more in an effort to calm himself down, setting up a feedback similar to what we see in the ice core dWhat the medical «experts» have missed is the fact that someone receiving a diagnosis of cancer will tend to smoke even more in an effort to calm himself down, setting up a feedback similar to what we see in the ice core dwhat we see in the ice core data.

As for what I wish for... I'm a skier, and the ice core research I do requires very cold conditions, so I am hoping against hope for some cooler weather.

The interactions (feedbacks) between THC shifts and sea ice and glacial calving (as indicated by ice - rafted debris in deep sea core records) would tend to seriously magnify the climate changes compared to what would be expected from a similar THC shift today.

Further to 13 (although I'm not so sure that George's message is a response to mine), a mode of explanation seen at What does the lag of CO2 behind temperature in ice cores tell us about global warming?

I would also add that the «prediction» made by # 11 about what a D - O event would look like is based on the Greenland ice core records, and the picture of «abrupt warming / slow cooling» picture comes from the data on millennial timescales.

Unlike the I.P.C.C. or any such pro AGW group, the ice cores have no emotions or agendas and simply are what they are... let's have a look shall we?

You say «ice core and other evidence»; what other evidence?

Indeed it was Law Dome, not the Taylor Dome... I had written that from memory, but as my memory is not anymore what it was 40 years ago... What I meant was a graph on the Internet, showing the Law Dome ice core CO2 variations, lagging the temperature variations with some 50 years (with ~ 10 ppmv / K, similar to the factor found over the Vostok ice core trenwhat it was 40 years ago... What I meant was a graph on the Internet, showing the Law Dome ice core CO2 variations, lagging the temperature variations with some 50 years (with ~ 10 ppmv / K, similar to the factor found over the Vostok ice core trenWhat I meant was a graph on the Internet, showing the Law Dome ice core CO2 variations, lagging the temperature variations with some 50 years (with ~ 10 ppmv / K, similar to the factor found over the Vostok ice core trends).

So what is the time difference between CO2 levels during the onset of a cooling period at the end of a warming period and the time history of the temperature changes in the ice cores?

I read your article «What does the lag of CO2 behind temperature in ice cores tell us about global warming?»

The point of this post is that the ice core data are entirely consistent with what we already knew (and have known since 1896 A.D. when Arrhenius published his climate sensitivity calculations).

In summary, the ice core data in no way contradict our understanding of the relationship between CO2 and temperature, and there is nothing fundamentally wrong with what Gore says in the film.

My colleagues and I were using what we call proxy records, like corals and tree rings, and ice cores to try and extend the climate record back in time so that we could learn more about natural climate variability.

(Christner et al. 2008) For me the ice core CO2 levels could be recognized as what bacteria and diffusion had left back.

Among other things, we know about diffusion, the gaussian filter effect that takes out short term variability that might explain the smooth ice core data, etc., but when taking readings from the air samples in ice, what is the mechanism for accounting for the CO2 contained in the ice itself?

The true believer in AGW can look at the ice core record and see, for example: 800 years with temperatures rising while CO2 is low and falling; 4000 years with both CO2 and temperature rising; then 400 years with temperatures falling while CO2 is high and rising, and say that we do not know what caused the first and last of those periods, but over the majority of the period (4000 out of 5200 years) the two were in step.

When sceptics look at statistical data, whether it is recent ice melt, deep sea temperatures, current trend in global surface temperatures, troposphere temperatures, ice core records etc. they look at the data as it is without any pre-conceptions and describe what it says.