Sentences with phrase «high temperatures over a period»

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.

Averaging the daily high temperatures over any period results in a mean maximum temperature for that period.

Not exact matches

The average daily maximum temperature during the pup - rearing period was roughly 1 °C higher in the first 12 years of monitoring than in the second 12 years, and over the same period the average number of pups surviving per pack per year fell from five to three.

A comparison between temperatures over the most recent available 30 - year period (1978 - 2007) shows high temperatures over parts of Russia (Figure below — upper left panel), and the difference between the GISTEMP and HadCRUT 3v shows a good agreement apart from around the Arctic rim and in some maritime sectors (upper right panel).

They then infer a higher temperature sensitivity to changes in radiance over this cycle and conclude that maybe 0.1 K temperature increase would be possible due to the variation in solar radiance, or about 30 % (if you push it) of the total temperature anomaly over this period.

[T] he idea that the sun is currently driving climate change is strongly rejected by the world's leading authority on climate science, the U.N.'s Intergovernmental Panel on Climate Change, which found in its latest (2013) report that «There is high confidence that changes in total solar irradiance have not contributed to the increase in global mean surface temperature over the period 1986 to 2008, based on direct satellite measurements of total solar irradiance.»

For the varieties that are scented, we only use high quality organic essential oils imported from France which are distilled with low temperature and low pressure over an extended period of time.

We only use high quality organic essential oils which are distilled with low temperature and low pressure over an extended period of time.

Note: We only use high quality organic essential oils which are distilled with low temperature and low pressure over an extended period of time.

The Whole Duck Heart Treats are allowed to dry at low temperatures over a longer period instead of being dried quickly in a day at high temperatures.

Thus the high rate of increase is almost totally irrelevant to the behavior of temperature over the same period.

The likely contributions of natural forcing and internal variability to global temperature change over that period are minor (high confidence).

Scientists matched the weather over those three days with similar weather in previous Septembers over that period, and found that the difference in daily high and nightly low temperatures in the absence of planes» contrails was more than 1C greater.

The U.S. Climate Extremes Index (USCEI), an index that tracks the highest and lowest 10 percent of extremes in temperature, precipitation, drought and tropical cyclones across the contiguous U.S., was a record - large 44 percent during the January - June period, over twice the average value.

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.

«The temperature records, that is, the «signal» of warmth that we're reconstructing for this part of the Canadian Arctic over the past 10,000 years seems to be higher than the global average for that period and even higher than the Arctic average.»

That gives a 4 - 6 K increase in temperature downwind the main emissions area (with highest effect near the Finnish - Russian border) over that period.

southern oscillation a large - scale atmospheric and hydrospheric fluctuation centered in the equatorial Pacific Ocean; exhibits a nearly annual pressure anomaly, alternatively high over the Indian Ocean and high over the South Pacific; its period is slightly variable, averaging 2.33 years; the variation in pressure is accompanied by variations in wind strengths, ocean currents, sea - surface temperatures, and precipitation in the surrounding areas

«Averaged over the five - year period 2015 - 2019, global average temperature is expected to remain high and is likely to be between 0.18 °C and 0.46 °C above the long - term (1981 - 2010) average of 14.3 °C.

«We found that the level of CO 2 had fluctuated greatly over the period but at any given time increases in air temperature preceded higher concentrations of CO 2,» says academician Kapitsa, who worked in Antarctica for many years.

Over short periods of time natural variability such as from ENSO for example, can create short term effects that run contrary to the longer term trend of increasing ocean heat content and higher tropospheric temperatures.

When we look over long enough periods the warming trend is likely to be weaker when the highly volatile time series are dropped as the most common expectation is that the largest changes in temperature will ultimately bee seen in the high latitude winter temperatures.

«The authors write that «the Mediterranean region is one of the world's most vulnerable areas with respect to global warming,»... they thus consider it to be extremely important to determine what impact further temperature increases might have on the storminess of the region... produced a high - resolution record of paleostorm events along the French Mediterranean coast over the past 7000 years... from the sediment bed of Pierre Blanche Lagoon [near Montpellier, France]... nine French scientists, as they describe it, «recorded seven periods of increased storm activity at 6300 - 6100, 5650 - 5400, 4400 - 4050, 3650 - 3200, 2800 - 2600, 1950 - 1400, and 400 - 50 cal yr BP,» the latter of which intervals they associate with the Little Ice Age.

However, differences are observable in the global temperature data at 90 % confidence over periods shorter than since 1970, but they are not observable at higher confidence.

«The combined average temperature over global land and ocean surfaces for July 2015 was the highest for July in the 136 - year period of record, at 0.81 °C (1.46 °F) above the 20th century average of 15.8 °C (60.4 °F), surpassing the previous record set in 1998 by 0.08 °C (0.14 °F).»

The trend lines for min temperatures on windy and calm time periods for 290 stations over the time period from 1950 - 2000, while intersecting the y axis at significantly different points (the windy trend lines always showing higher temperatures but the amount can depend on season), both trend at a 0.20 degree C per decade rate.

Prolonged periods of high temperatures and the persistence of high nighttime temperatures have increased in many locations (especially in urban areas) over the past half century.

While their conservative physiology — retention of needles for one to several decades — provides a buffer to year - to - year changes evident in the high autocorrelation of ringwidth series, the critical factors limiting growth are growing - season length and mean temperature over that period.

Until climatologists can properly make models that reflect the entire global history and take into account plate position and how high the plates ride, oceanic levels due to this and the position of oceans, overall insolation, overall daylength and its effects on average global temperature and factor in known carbon dioxide levels over that time period, then they will be unable to give any correlation between current carbon dioxide levels and global temperature.

Over a long period of time its environment has deteriorated so that we now expect that it is measuring a temperature considerably higher than the temperature which would have existed if the environment at that location had remained unchanged.

http://illconsidered.blogspot.com/2006/04/historically-co2-never-causes.html 100 years of shift does not factor into the larger scale phenomena http://illconsidered.blogspot.com/2006/01/one-hundred-years-is-not-enough.html Until climatologists can properly make models that reflect the entire global history and take into account plate position and how high the plates ride, oceanic levels due to this and the position of oceans, overall insolation, overall daylength and its effects on average global temperature and factor in known carbon dioxide levels over that time period, then they will be unable to give any correlation between current carbon dioxide levels and global temperature.

Recall the definition of RE (courtesy of the NRC): where is the mean squared error of using the sample average temperature over the calibration period (a constant,) to predict temperatures during the period of interest» Note that you can get a high RE2 by overfitting.

But there is NO empirical evidence that co2 has EVER (even over geologic periods) had any impact on our temperature, and during most of our planet's existence, co2 level has been many TIMES higher than it is now.

They found that the warming in the data - sparse regions was progressing faster than the global average (especially during the past couple of years) and that when they included the data that they derived for these regions in the computation of the global average temperature, they found the global trend was higher than previously reported — just how much higher depended on the period over which the trend was calculated.

The mean and standard deviation would be the daily mean and standard deviation, whereas the actual figure needed to calculate is the mean and standard deviation for the maximum temperatures over a 14 day period, which would be much higher than the daily figure (read more).

The highest solar activity during the period 1950 to 2000 was during cycle 19 so it is quite possible that a small decline in thermosphere temperature would be observed over the period without that contradicting my assertion that generally a more active sun warms the thermosphere (but that is something you admit anyway).

For our first hypothesis, over the period 1876 — 2009 the mean annual temperature varied between a low of 11.04 °C and a high of 13.33 °C.

I'll rest my case on the fact that CO2 has averaged 5 to 10X HIGHER on this planet for 100's of millions of years (GEOCarb III), and temperature over that period had zero correlation to its concentration.

Admittedly, the much higher levels of ESS play out over much longer periods but we may already have condemned future generations to intolerable temperatures and sea level rise.

especially over coral reefs and in shallow estuaries, where high natural surfactant concentrations and subsequent hydrosols persistence may make it economically feasible to lower peak water temperatures for extended periods»

There is very high confidence that models reproduce the general features of the global - scale annual mean surface temperature increase over the historical period, including the more rapid warming in the second half of the 20th century, and the cooling immediately following large volcanic eruptions...

And he said that the debate over whether the world could have been even warmer than now during the medieval period, when there is evidence of high temperatures in northern countries, was far from settled.»

Since the volcanic forcing tends to be like a very high frequency spike, the temperature response to the forcing is lower in magnitude than you would expect if the forcing were sustained over a longer time - period.

global mean surface temperatures over the last 25 years have been higher than any comparable period since AD 1600, and probably since AD 900

The median changes in temperature and precipitation for December, January and February (DJF) and June, July and August (JJA), averaged over the period 2070 — 2099, were calculated from the high - end and non-high-end projections together with the maximum range from each group of models.