Sentences with phrase «year variability in»

And year - to - year variability in the CO2 rise is more determined by the sinks than the sources.
«The remainder [of the rise] is due to year - to - year variability in temperatures,» according to the study.
CL at # 45 wrote: «As ice volume decreases, the fraction of volume which is new ice increases, and hence the year to year variability in new ice becomes a larger fraction of the total ice volume variability, so I don't think the smoothed downward slope will stay as smooth, i.e. you should expect bigger surprises to the upside on a given winter if it is cold and has heavy snow fall.»
Beckwith, 3.25 (2.75 - 3.75), Heuristic The large year - to - year variability in the sea ice extent makes this sort of prediction very dicey.
A key aspect concerns the enigmatic Atlantic Multidecadal Oscillation (AMO), a feature defined by a 60 - to 90 - year variability in North Atlantic sea - surface temperatures.
Even significant if you include the year by year variability in increase rate (of + / - 0.5 ppmv) around the trend.
The seasonal variation has nothing to do with the year by year variability in rise of CO2 levels nor with the trend itself.
In reality Imbalance in the seasonal variation CREATES the year by year variability in rise of CO2 levels AND the trend itself.
Come on Richard, The seasonal variation has nothing to do with the year by year variability in rise of CO2 levels nor with the trend itself.
Changes in ocean circulation, which are loosely coupled to the atmospheric energy exchange, can produce substantial year - to - year variability in global temperatures (e.g., El Nino and La Nina events).
As of this writing, there is observational and modeling evidence that: 1) both annular modes are sensitive to month - to - month and year - to - year variability in the stratospheric flow (see section on Stratosphere / troposphere coupling, below); 2) both annular modes have exhibited long term trends which may reflect the impact of stratospheric ozone depletion and / or increased greenhouse gases (see section on Climate Change, below); and 3) the NAM responds to changes in the distribution of sea - ice over the North Atlantic sector.
It was well known — and in fact had been demonstrated most recently in an article in Nature — that, while el nino, along with volcanic eruptions, did explain a fair amoount of the short - term year - to - year variability in global temperatures, it could not accouny for the warming trend., Had McLean et al somehow discovered something that had eluded the entire research community fir decades?
Wili: As ice volume decreases, the fraction of volume which is new ice increases, and hence the year to year variability in new ice becomes a larger fraction of the total ice volume variability, so I don't think the smoothed downward slope will stay as smooth, i.e. you should expect bigger surprises to the upside on a given winter if it is cold and has heavy snow fall.
They should also be prepared for greater year - to - year variability in value - added for a few years after the change when they will be using both old and new tests.
Research and past experience suggests that teachers should be prepared for greater year - to - year variability in their value - added ranking for a few years after the change when districts use both old and new tests for value - added calculations.
«There's a lot of year - to - year variability in both Arctic and Antarctic sea ice, but overall, until last year, the trends in the Antarctic for every single month were toward more sea ice,» said Claire Parkinson, a senior sea ice researcher at Goddard.
A decrease in precipitation frequency translates into even more year - to - year variability in fresh water resources for the Southwest.

Not exact matches

As we've demonstrated repeatedly, the valuation measures most strongly correlated with actual subsequent returns, particularly over a 7 - 15 year horizon, are those that normalize for profit margin variability in some way.
The variability of inflation has been a bit higher over the past 10 years than in the preceding decade.
I mean what we've learned over the last several years is that there's tremendous variability across the year, and so you had really strong sales results at Red Lobster first quarter last year, weak earnings results because of the variability in food costs.
In addition to improving flow variability within the river channel, the proposed weir pool manipulation events will provide inundation for fringing wetlands and lakes, as well as flows through important flowing habitat for fish such as in Potterwalkagee Creek (Mulcra Island) and Lindsay River and Mullaroo Creek, (where regulating structures constructed under The Living Murray program were commissioned this yearIn addition to improving flow variability within the river channel, the proposed weir pool manipulation events will provide inundation for fringing wetlands and lakes, as well as flows through important flowing habitat for fish such as in Potterwalkagee Creek (Mulcra Island) and Lindsay River and Mullaroo Creek, (where regulating structures constructed under The Living Murray program were commissioned this yearin Potterwalkagee Creek (Mulcra Island) and Lindsay River and Mullaroo Creek, (where regulating structures constructed under The Living Murray program were commissioned this year).
There's a great deal of variability in how screen time affects different children and there are enormous positives to be found in the offerings of today's technology, but apparently not in a child's earliest years.
By comparison, phenacosaur anoles living in cloud forests have had very little exposure to temperature variability for over 10 million years and are very much at risk from climate change, he said.
«For years, we've been using ice cores to look at the natural variability in the system,» says Thompson.
They concluded that the heavy rains in Europe last year were likely due to natural variability in the climate system rather than climate change.
In recent years, many studies have sought to unsnarl the role of anthropogenic climate change from natural variability on extreme weather events (SN: 1/20/18, p. 6).
Over 10 years the scientists measured the amount of new growth (productivity) generated by all species in each plot, and the variability of that productivity (stability) from year to year.
Schultz, a professor of synoptic meteorology, and co-author Dr Vladimir Janković, a science historian specialising in weather and climate, say the short - term, large variability from year to year in high - impact weather makes it difficult, if not impossible, to draw conclusions about the correlation to longer - term climate change.
This variability includes the Pacific Decadal Oscillation (PDO), a long - lived El Niño - like pattern of Pacific climate variability that works like a switch every 30 years or so between two different circulation patterns in the North Pacific Ocean.
The crucial question now is whether the temperature changes in the Pacific reflect a natural variability in the climate that might reset itself in a few years or whether the shift to weaker long rains is a permanent result of human - induced climate change.
«We've known for 30 years that the cheetah has a low variability at some immune genes, but they thrive in a pathogen - laden environment.»
Lead author of the study Dr David Reynolds, from the School of Earth and Ocean Sciences, said: «Our results show that solar variability and volcanic eruptions play a significant role in driving variability in the oceans over the past 1000 years.
This record also seems to show that the rise in methane levels in the last 10,000 years — thought by some to be a result of human agriculture — could simply be the result of natural variability in the decomposition of plants in boreal forests and wetlands.
However, declining human semen quality remains a controversial issue — many have criticised the variability of the data of the studies on the basis of changes in laboratory methods, training of laboratory personnel and improved quality control over the years.
The annual variability and trends in loggerhead nesting numbers in Florida are associated with long - term survival at sea from hatchling to maturity, combined with climate - driven changes in mature female foraging areas within a year or two before nesting.»
If first - timers contributed more to nesting variability and trends, a decline in the years 2029 - 2038 would be expected.
Some show far more variability leading up to the 20th century than the hockey stick, but none suggest that it has been warmer at any time in the past 1000 years than in the last part of the 20th century.
The newly released measurements constitute a nearly continuous global record of the variability in this radiation belt for the past 16 years, including how it responds to solar storms.
But with the frequency of droughts expected to triple in the next 100 years, researchers fear the resulting variability and stress to agriculture and civilization could prove destabilizing for many regions.
Several studies have shown the drug helps about half of the people who take it lose more than 5 percent of their body mass within a year, but there's a great deal of variability in individual results, and the mechanism underlying its effect was previously unknown.
The AMO also shows strong variability from one year to the next in addition to the changes seen every 60 - 70 years, which makes it difficult to attribute specific extreme winters to the AMO's effects.
I plotted out the variability in million - year intervals and found that about 6 million years ago, that variability went off the charts and kept increasing.
The paradox is that this season stands in such stark contrast to the past 11 years of drought, highlighting the types of variability that climate change can wreak on the hydrological cycle.
In recent years, a brand of research called «climate attribution science» has sprouted from this question, examining the impact of extreme events to determine how much — often in fractional terms — is related to human - induced climate change, and how much to natural variability (whether in climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host of other possible factorsIn recent years, a brand of research called «climate attribution science» has sprouted from this question, examining the impact of extreme events to determine how much — often in fractional terms — is related to human - induced climate change, and how much to natural variability (whether in climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host of other possible factorsin fractional terms — is related to human - induced climate change, and how much to natural variability (whether in climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host of other possible factorsin climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host of other possible factorsin incoming solar radiation, or a host of other possible factors).
El Niño is a weather pattern characterized by a periodic fluctuation in sea surface temperature and air pressure in the Pacific Ocean, which causes climate variability over the course of years, sometimes even decades.
Currently, ACME collaborators are focused on developing an advanced climate model capable of simulating 80 years of historic and future climate variability and change in 3 weeks or less of computing effort.
The groundbreaking study revealed that, globally, the year - to - year variability of the land carbon balance — the exchange of carbon that takes place between the land biosphere and the atmosphere — responds most significantly to changes in temperature.
The PBL found that «this statement is not directly a statement of climate change, but of climate variability: in individual years, drought can cause up to 50 per cent yield reductions».
Both of El Niño's counterparts will be looked at more closely in a 15 - year programme studying climate variability known as CLIVAR, which is the follow - up to TOGA.
Unlike the freakish situation in California, where several years of low snowfall and rainfall are serving as a reminder of the tremendous natural variability in Pacific - influenced weather, and the need to always be vigilant when it comes to managing water supplies, the situation in Washington resembles the parched climate - changed normal for swaths of the West in the decades ahead.
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