Sentences with phrase «vostok temperature»

Figure 6: a) spectral power density periodogram of Vostok temperature - proxy records over the Holocene for 12,000 years showing six peaks.

I did find your comment on the Vostok temperatures interesting when l looked at the chart.

For a completely carbon - dioxide - free reconstruction of the Vostok temperatures since 450 000 years refer to O. G. Sorokhtin (references on card n ° 7) chapter 4.4 pp. 180 - 190 Precession Cycles and the Earth Climate: it explains in detail and computes the quick de-glaciations observed by G.Roe and by Lisiecki & Raymo, with all the «saw - teeth».

Not exact matches

The end of an ice age is associated with about 10 - 20 F ° of temperature rise, according to interpretations of the Vostok ice cores.

If the wind speed were lower and a similar vortex centred on Vostok, Turner reckons that the temperature could drop by a further 6 °C or so.

Pluto spends its time far from the sun, where temperatures hover around minus 391 degrees Fahrenheit; Ceres is much closer and can heat up to minus 37 F (warmer than summers at Antarctica's Vostok station).

John C. Priscu, a professor of land resources and environmental sciences at Montana State University who discovered microorganisms thriving in permanently frozen surface lakes in Antarctica at temperatures as low as — 10 degrees Fahrenheit, wants to study microbes in Lake Vostok to learn if they are viable or unique, or both.

Further, in more recent times, there is a very close CO2 - temperature relationship in the Vostok (and other) ice cores.

The largest subglacial lake, Lake Vostok, lies beneath the coldest place on the planet, where the temperature at the surface often falls below minus 60 degrees Celsius.

Mearns, Vostok, CO2, temperatures, methane, energy subsidies, Bezdek, inferior, petrochemical, jobs, investment, 14,218 years, Feynman

Amplitude and Duration: Davis identified 650 individual cycles of Temperature - proxy Oscillation (TO - c350) cycles in the Vostok data over the past 220,000 years.

Special graphics on the body include lat / long coordinates that correspond to the location of Vostok in Antarctica, where the absolute severest temperature in the world was recorded at minus 128.56 degrees F.

He brings up quite a bit of the «CO2 lags temperature in the Vostok ice core» stuff which has been thorouhgly refuted (at least in the context that this is contradictory to AGW).

Considering the vostok Ice core the equilibruim CO2 level is a fairly linear function of temperature (9.8 ppm / K) I agree that the pre-industrial equilibrium of 280 ppm should now be 287 ppm, but that increase is still small compared to the anthropogenic signal of 93 ppm.

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 trends).

Further, Vostok suggests that within centuries, Global Temperatures will then plummet by some 10 °C in just a few thousand years, ending the current stable - temperature Holocene Epoch in which human civilisation flourished.

Similarly, I've got the Vostok ice core temperature record heading your way soon.

Indeed the ice cores show a remarkable (near) linear response of CO2 to temperature changes, be it overall ~ 8 ppmv / K for the 420,000 years Vostok ice core, where K more or less reflects the SH ocean temperature.

The lag between movements in temperature and movements in CO2 levels may even between 800 — 1000 years if Vostok ice core studies are correct.

The Vostok data going back 450,000 years shows that CO2 lags temperature by several hundred years, so was obviously not the «driver».

The Vostok ice core for the Eemian shows a 100ppm rise in CO2 (starting at 190ppm) after temperature started to rise (not the other way around).

The Vostok core clearly indicates that when the temperature reaches 2 °C a mechanism kicks in which sets the temperature falling again and initiates an ice - age.

Contrary to current belief today, the Vostok data shows us that CO2 increases lag behind temperature increases by about 800 years.

We understand from Vostok ice core data that there is a ~ 600 year lag in CO2 after temperature.

The graph built from the Vostok ice core data shows us the relationship between CO2 in the atmosphere and global temperature.

A site that show the astronomical cycles, solar insolation, CO2, CH4 and temperature record is the Vostok Viewer:

Carbon dioxide measurements on Dome C ice, focusing on the interval 390 to 650 kyr before present, bp (2,700 — 3,060 m) 4, confirmed the strong coupling between CO2 and Antarctic temperature found1 in the Vostok ice core for the past 420 kyr.

The coldest surface air temperature ever measured on Earth was at the Vostok Station in 1983, a reading of T = -89.2 C (or 184K), which is reasonably close to CO2 snow deposition temperature of 133K (1 bar) or 152K (10 bars).

«The coldest surface air temperature ever measured on Earth was at the Vostok Station in 1983, a reading of T = -89.2 C (or 184K), which is reasonably close to CO2 snow deposition temperature of 133K (1 bar)...»

The dD record is directly related to the temperature of most of the SH oceans, where the pecipitation of the Vostok ice core originated.

So the prediction from Vostok is for a natural temperature response about the same as IPCC predicts for man doubling atmospheric CO2 content after turning off the on - going natural processes.

This quashes the on - going temperature and CO2 increases evident from the Vostok record.

Looking at, for example, the Vostok cores, we repeatedly see the CO2 concentration peak after temperature has begun to drop.

Based on the Vostok record, Earth should about now be stabilizing (briefly in geological terms) at an anomaly of about 3ºC ± 1ºC, the temperature of the preceding four peaks.

Precision of Ice Core Measurements: Some of the best data we have of historic temperatures are the studies of isotopes of gases and various components of the atmosphere in ice cores, such as Vostok in Antarctica, and GRIP in Greenland.

The Vostok ice core record suggests CO2 levels have not been this high in the last 800,000 years, but if Salby is right, and temperature controls CO2, then CO2 levels ought to have been higher say, 130,000 years ago when the world was 2 — 4 degrees warmer than it is now.

Further, there is firm evidence that migration of CO2 isn't important in the Vostok and Dome C ice cores over the past 800,000 years: each glacial / interglacial period shows the same ratio between temperature and CO2 changes: about 8 ppmv/degr.C.

As far as the correlation between GHGs and temperature goes, recent history already passes his r2 > 0.5 test with flying colours - the Mauna Loa CO2 data vs GISTEMP from 1961 - 2004 gets r2 = 0.76, and I'm sure that the Vostok ice core data must be in the same ballpark over ~ 400,000 years or more (a quick google finds multiple references to the strong correlation but no hard numbers and I can't be bothered doing it myself).

On the other end of the spectrum, the coldest temperature ever recorded on Earth was in Vostok, Antarctica at -89.2 C.

Looking at the Vostok Ice core data I would think it is much more likely that the Earths temperature is more of a control valve for atmospheric Co2 content.

As it happens, the relationship between CO2 and temperature in the Vostok record is well - represented by Henry's Law, using the identical data.

The Vostok data showed that CO2 increases lag behind temperature increases by about 800 years.

Heres a compiled temperature graph: http://cdiac.ornl.gov/trends/temp/vostok/graphics/tempplot5.gif Based on the Vostok Ice Core.

There is the research that reports that Vostok ice cores, going back 800,000 years, clearly shows that temperature rises before a parallel rise of CO2 800-1200 years later.

Records of CO2 (green) and temperature (blue) over the past 350,000 years from the Vostok ice core, after [Petit et al., 1999].

For example, I just finished a GnuPlot of Temperature and CO2 correlation for Vostok over the last evening.

The timing of this cross-equatorial heat transfer almost perfectly matches all of the major features of the Antarctic Temperature record (for Vostok, Dome C, and Dronning Maudland) going back more than 500,000 years.

But let's do a real rough check, based on the HadCRUT surface temperature record, the Mauna Loa measurement of atmospheric CO2 (after 1958) and the IPCC estimated CO2 level based on the Vostok ice cores (prior to 1958):

Nancy, there are higher resolution proxies, such as the Vostok Ice Core, which do in fact show lots of temperature spikes.

Rather, there is a defined temperature range of ≈ 12ºC from high to low at Vostok: