Sentences with phrase «ice core data also»

The ice core data also agree quite well with the tree ring data where these data sets overlap.

The ice core data also shows that CO2 and methane levels have been remarkably stable in Antarctica — varying between 300 ppm and 180 ppm — over that entire period and that shifts in levels of these gases took at least 800 years, compared to the roughly 100 years in which humans have increased atmospheric CO2 levels to their present high.

Not exact matches

Ambrose also cites Greenland ice core data that suggest sulfur stuck around in the atmosphere longer than just a few years and that Earth had already entered a cold snap.

Analysis of data also shows that Ceres has a water - ice mantle surrounding a rocky core, and that there may still be at least pockets of liquid water beneath the surface, raising the prospect of potential habitability for microorganisms, as seemingly unlikely as that may sound for a world so far from the Sun.

Data is also related to new manuscript being submitted to Annals of Glaciology titled: «Instruments and Methods: A case study of ice - core bubbles as strain indicators» (John M. Fegyveresi, Richard.

Joanne also discusses using ice core data, which is generally reliable.

We also include data from the new WAIS Divide ice core that goes back 2000 years (actually, this core goes back to 68,000 years, and is annually resolved back to at least 30,000 years, but that's a story for another time).

There are also some technical reasons for that (for instance, for some proxies, such as lake sediments or ice cores, it is harder to retrieve the most recent data).

Would the westerly winds also affect the ice core data giving a false reading of temperature?

Also, we do not use the past as an analogue, comparing the present with ice core data to draw conclusions.

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.

That would change if the Quilotoa eruption also showed up in ice core data at around 20 + years later than the still - a-bit mysterious 1258 CE event.

I've also analyzed data (not conclusions, but raw data) relating to paleoclimate reconstructions such as tree rings, ice cores, and (my personal favorite) borehole temperature profiles.

In addition to the data from tree rings, there are also of measurements of the 13C / 12C ratio in the CO2 trapped in ice cores.

Data has also been gathered from ice cores that contain ancient air bubbles.

fhhaynie For the empirical ice core and proxy temperature data on which the 1000 year cycle is based see Figs 6 and 7 in the latest post at http://climatesense-norpag.blogspot.com Interestingly Fig 6 also suggests that if you believe (which I obviously don't) that CO2 is the main climate driver - its long term effect is to cool the earth.

Independent non-thermometer data (so - called proxies, like tree rings, ice cores, ocean sediments, stalagmites, etc.) also show no warming trend between 1978 and 2000.

Also, the Greenland ice core data do agree pretty good with sulfate emissions estimates, but Greenland is located downwind of the US and Canada and does not represent global trends impacted by developing countries.

I also explained I don't have any real beefs with ice core data but if you want to state something specific I'm sure I can find something to cast doubt upon it as very little in this debate is writ in granite, confirmation bias is rampant, overconfidence abounds, the race to publish by inexperienced youngsters on the tenure track is heated, and pal review let's just about anything that supports the consensus view get published while simultaneously quashing anything contrary.

All that is required is to take, as a working hypothesis the fairly small and reasonable step of accepting that the recent peak was also a peak in the 1000 year cycle This periodicity seen in seen in the temperature proxy and ice core data data in Figs 3 and 4 in the last post at http://climatesense-norpag.blogspot.com This post also contains a forecast of the timing and extent of the coming cooling.

The correlation between Greenland ice core data and solar flux, is also seen in Scandinavian tree ring data.15 Tree rings suggest the warmest decade in the past 2000 years, happened during the warm spike of the Roman Warm Period between 27 and 56 AD.

Also, there is paleoclimate data that contradicts the ice - core data, such as Stomata and we have 90,000 direct empirical chemical measurements dating back to 1812 of atmospheric with a 3 % accuracy that depicts CO2 as high as 440ppm (Beck 2007).

Not to mention that the «hockey - stick - like» CO2 data from ice cores + modern measurements is a carefully crafted stalking horse — you have to ignore most pre-industrial measurements (cherry - picking the low ones) and also the bulk of the stomata proxies to believe it.

Scientists also use ice core temperature data to validate climate models that predict Earth's future climate.

He also shows a lag of five years eliminated by the 70 year smoothing applied to the ice core data that eliminates or masks most diagnostic information.

Proxy data from ice cores (e.g. Schneider and Steig 2008; Thomas et al. 2009) and boreholes (e.g. Barrett et al. 2009) have also been developed to infer West Antarctic climate variability and trends over the past 50 — 200 years.

Ice core data from Baffin Island and sea core sediments from the Chukchi Sea also show that even if there is warming, it has occurred before.

Also, some proxies show here that the last 3 million years, p.CO2 often could be similar — or higher — than the present (also in the period in which we have data from ice corAlso, some proxies show here that the last 3 million years, p.CO2 often could be similar — or higher — than the present (also in the period in which we have data from ice coralso in the period in which we have data from ice cores).