In our new paper (Labe et al., 2018), we are interested in understanding the year - to -
year variability of Arctic sea ice thickness along with the long - term trend.
For future projections, GFDL atmospheric modelers have developed global models capable of simulating many aspects of the seasonal and year - to -
year variability of tropical cyclone frequency in a number of basins, using only historical sea surface temperatures as input.
In addition, we discuss why this recent rapid retreat of Arctic summer sea ice might largely be a consequence of a slow shift in ice - thickness distribution, which will lead to strongly increased year - to -
year variability of the Arctic summer sea - ice extent.
Despite large year - to -
year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].
I believe that it has been pretty well demonstrated that the year - to -
year variability of the CO2 concentrations in mainly due to variability in the amount of carbon stored in the land vegetation and perhaps surface soil.
Although there is significant season - to - season and year - to -
year variability of world sea - ice coverage, there is no dramatic trend in global sea - ice loss.
We only select climate models that do a good job of simulating the natural year - to -
year variability of Australian temperatures.
«There's substantial year - to -
year variability of global temperature caused by the tropical El Niño - La Niña cycle,» explains James Hansen, director of the Goddard Institute for Space Studies (GISS).
We find that the year - to -
year variability of each feedback process in this single model is comparable to the model - to - model spread in feedback strength of the CMIP3 ensemble.
«There's substantial year - to -
year variability of global temperature caused by the tropical El Niño - La Niña cycle.
Egorova, T., E. Rozanov, E. Manzini, M. Haberreiter, W. Schmutz, V. Zubov, and T. Peter, 2004: Chemical and dynamical response to the 11 -
year variability of the solar irradiance simulated with a chemistry - climate model, Geophys.
I haven't made a dCO2 / dt graph with my formula, as the year - by -
year variability of CO2 around the trend is of minor interest.
«Year - to -
year variability of food production will become greater, which will make global food markets more unpredictable,» Challinor said.
Despite large year - to -
year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].
Year to
year variability of food production will become greater, which will make global food markets more unpredictable.
We know that the magnitude of year - to -
year variability of sea ice in Antarctica is very high compared to the long term trend [Fig 1].
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.
Not exact matches
Though there's a great deal
of variability across bear markets, they tend to last somewhat longer than a
year, and take the market down by about 32 % on average.
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.
The final
years of work and the first few
years of retirement tend to have increased
variability of either income, deductions, or both.
Crude oil prices have been more volatile this
year than at any time since the financial crisis
of 2008/09 and before that 1991, according to standard measures
of price
variability.
this certainly may be true, but while there can be a lot
of variability around month - to - month or
year - to -
year performance, I completely
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.
The scientists studied a marine sediment core off the coast
of South Africa and reconstructed terrestrial climate
variability over the last 100,000
years.
For the last six
years, BAMS has published a December issue containing research on extreme weather events from the previous
year that seeks to disentangle the role
of anthropogenic climate change from natural
variability.
Using math and computer skills, he developed systems models showing 150
years of climate
variability.
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).
Researchers from the University
of Southampton, the National Oceanography Centre and the Australian National University developed a new method for determining sea - level and deep - sea temperature
variability over the past 5.3 million
years.
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.
Last
year astronomers discovered evidence
of another unexpectedly uniform kind
of variability among gamma - ray bursts, stellar explosions that are even more luminous than Type Ia supernovas.
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.
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.
«A lot
of the
year - to -
year variability is for all practical purposes random and unpredictable,» said Sobel, who also directs a new Columbia University Initiative on Extreme Weather and Climate.
«Interestingly, the effect
of precipitation
variability was amplified over the six
years the experiment lasted and we still don't know its end point,» said Laureano Gherardi, a School
of Life Sciences postdoctoral research associate and co-author
of the paper.
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.
Arizona State University investigators conducted a six -
year experiment on the effects
of climatic
variability on desert grassland.
Such
variability between
years is the reason why the number
of chicks dying from climate change is not a tidy, ever - increasing figure each
year.
We present tree ring — based reconstructions
of central European summer precipitation and temperature
variability over the past 2500
years.
«However, this might just be an extreme case
of pushing the envelope
of year - to -
year variability.
«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.
«The swing to a very cold
year is natural
variability, and what we want to be able to uncover and understand is the magnitude
of the slow and steady trend occurring at the same time as these large swings.»
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.
«For various periods over the last 60
years, we have been able to combine important processes: atmospheric
variability, such as the North Atlantic Oscillation, water and air temperatures, the occurrence
of fresh surface water, and the duration
of convection,» explains Dr. Marilena Oltmanns from GEOMAR, lead author
of the study.