Sentences with phrase «stable temperatures over»

We're still talking very stable temperatures over a very long time, and the variation in the last 130 years is mice nuts.

Not exact matches

UHT Soup - Soup which has been heat treated via ultra-high temperature (UHT) processing to become shelf - stable over a long period of time.

An aseptic package has been sterilised prior to filling with UHT (Ultra High Temperature) treated food, resulting in a product which is shelf stable for over 6 months.

Recent experiments have demonstrated that colloidal particles decorated at two interaction sites display a remarkable propensity for self - organising into highly unusual structures that remain stable over a broad temperature range.

Most of the hydrate should remain stable within the recorded temperature changes, Hutnak says, but if the hydrates are disrupted in another way, «it might be enough to push it them over the edge.»

The units proved able to deliver current at high temperatures with a stable voltage window of 3 volts over 120 charge - discharge cycles and featured both the thermal stability of solid - state electrolytes and the wetting properties of liquid electrolytes, assuring good contact with the electrodes.

They have concluded that the global average temperature over the past 1,000 years has been relatively stable until the 20th century.

The fluids are stable and can withstand extreme temperatures, pressures and acidity levels, unlike some fluids used in oil and gas recovery, which degrade over time.

Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

The letter notes that «Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

Dr. Jerison studies systems governed by simple rules that nonetheless exhibit complex behaviors, such as phase transitions — for instance, when a slight temperature increase causes ice to melt into liquid water; and threshold phenomena — for instance, when a small extra deposit of soil causes a stable slope to topple over into a landslide.

What's Next: The team, again integrating experiments and theory, are studying the temperature range over which the two - layer ice is stable and what happens when more water is added on top of the two - layer ice.

The enzymes are resistant to thermal denaturation and will act at very high substrate concentrations, which means that they are stable at higher operational temperatures and can be used over and over during processing.

Nitrogen brings several improvements over air, but perhaps most significantly is its ability to remain at a stable pressure even under extreme temperature change.

We needed to form microcapsules, coat them down into an individual layer, and then — most importantly — create a closed system involving dozens of different organic materials that would remain stable over years of exposure to high electric fields and the extremes of temperature and humidity.

A sea of clouds forms generally in valleys or over seas in very stable air mass conditions such as in a temperature inversion.

To put it differently, which is more likely, that temperatures were unusually stable over the past 1,000 years or that the hockey stick is generated by a weak model unable to detect significant temperature swings from the tree - ring record?

The deuterium excess, a proxy of Greenland precipitation moisture source, switches mode within 1 - 3 years over these transitions and initiates a more gradual change (50 years) of the Greenland air temperature as recorded by water stable isotopes.

Instead, the wood is «cooked» at high temperatures over a period of time, making it resistant to rot and insects, and rendering it dimensionally stable as well.

Human biology is remarkable; we maintain a relatively stable core body temperature over a wide range of ambient temperatures.

Human civilization developed over a period of 10,000 years during which global average surface temperatures remained remarkably stable, hovering within one degree Celsius of where they are today.

So if the current temperature stays at 1.2 C over the next 40 years, either sensitivity will get reduced in half or scientists will treat the climate as stable and move on to different topics, such as looking for alternatives to non-renewable fuels.

Hence, if David and the IPCC etc wish to put forward ideas that ignore basic physics, meaning that they ignore the maximum entropy production which the Second Law says will tend to occur, thus establishing a stable temperature gradient which, as Big Wave Dave said, «obviates the need for concern over GH gases,» then the onus is on them to prove what they say, not only with valid physics, but also empirical evidence, experiments and studies, as appropriate and as is usually done in physics.

A crucial question raised was why CH4 emissions in this region have been stable over recent decades, whereas many process - based models indicate that increasing temperatures should have led to a detectable increase in emissions.

Global temperatures have been stable for over a decade, and many scientists are predicting global cooling is ahead.

It is a peak - to - peak chart through December 2015 that reveals absolute global temperatures to be on a fairly stable path over the last 18 years.

(2) «over the past century, the temperature change has not always been consistent with the change of CO2 concentration,» since «for several periods, global temperatures decreased or were stable while the atmospheric CO2 concentration continuously increased,»

But it is the adiabatic lapse rate (itself a function of the acceleration due to gravity) that determines the surface temperature, along with the long - established temperature gradient from the core to the surface which has established a stable approximate equilibrium point at the interface of the surface and atmosphere over the life of the Earth..

In brief, Mann, in an effort to show that 20th century temperature increases are unprecedented and therefore more likely to be due to mankind, created an analysis quoted all over the place (particularly by Al Gore) that says that from the year 1000 to about 1850, the Earth's temperature was incredibly, unbelievably stable.

- Earth's temperature has not been «unusually stable while humans have evolved over the past few million years».

«Temperature trends in SW US have been relatively stable over last 5 centuries.»

Measurement of CO2 concentration is always problematic; the «Standard Dry Air» SDA basis of measurement and comparison is at standard temperature and pressure which is a non-existent parameter; and as we are seeing, CO2 is not a well - mixed gas at all and will be defined by, amongst other variables, SH, or absolute humidity; SH can vary from 0 to 5 % by volume of atmosphere; as the SH increases, the absolute amount of other gases, including CO2, decreases; to say therefore that atmospheric concentrations of CO2 have remained stable and not been above 280ppm over the last 650my is fanciful; even if you assume past CO2 levels have not got above 280ppm the range of variation within that limit has been greater than the current increase;

Weathering may depend on properties like temperature, pCO2, land ice abrasion, and sea level change but has been suggested to be stable over glacial − interglacial cycles (54).

We know from archeology and paleontology that in fact the overall temperature of the earth is a relatively stable quantity over very long periods of time.

In short, your idea that the temperature of the earth has been remarkably stable over times is correct, and the idea that water seems to dominate also looks correct, but the idea of a stable atmospheric density appears incorrect, and the ancient sun is a complete unknown that needs looking into.

A problem: «Despite a substantial increase in the power of the sun over billions of years the temperature of the Earth has remained remarkably stable.

The letter notes that «Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

Stable atmospheric concentrations of greenhouse gases would lead to continued warming, but if carbon dioxide emissions could be eliminated entirely, temperatures would quickly stabilize or even decrease over time.

It's difficult to imagine the temperature on the surface of the ball is anywhere near stable over time.

Earth's average temperature has been very stable over the past 10,000 years, the era during which modern civilization developed, but this stability is being seriously disrupted.

If I remember correctly, models spin up to stable values at different average surface temperatures over a range of ~ 4 C.

Again, look more carefully into the Vostok ice core data http://www.realclimate.org/index.php?p=221 - contrary to your presentation of stable concentrations over thousands of years, there was no single period in time when concentrations and temperatures were steady stable, they were always changing, and therefore were in dynamics, in a state far from equillibrium.

So Perth sea levels haven't risen by up to 10 mm per year since 1993, they aren't rising three times faster than the global average, land subsidence indicates they've been closer to flat and possibly even fallen since 1993, and the leaked IPCC report confirms they've been as stable as global temperatures for well over a decade.