Sentences with phrase «temperature variability changed»

The new study, published in Nature, is the first to make a global assessment of how long - term temperature variability changed from the LGM to the Holocene.

Climate researchers from the Helmholtz Young Investigators Group ECUS at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) in Potsdam have now investigated how temperature variability changed as the Earth warmed from the last glacial period to the current interglacial period.

Not exact matches

Growing scarcity In addition to a growing scarcity of natural resources such as land, water and biodiversity «global agriculture will have to cope with the effects of climate change, notably higher temperatures, greater rainfall variability and more frequent extreme weather events such as floods and droughts,» Diouf warned.

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.

«Winds hide Atlantic variability from Europe's winters: Study reveals how wind patterns change along with sea - surface temperatures.»

However, solar variability alone can not explain the post-1970 global temperature trends, especially the global temperature rise in the last three decades of the 20th Century, which has been attributed by the Inter-Governmental Panel on Climate Change (IPCC) to increased concentrations of greenhouse gases in the atmosphere.»

Comparing layers in the ice - core samples and ocean sediments has allowed researchers to deduce e.g. how the average temperature on Earth has changed over time, and also how great the variability was.

The recent slowdown in global warming has brought into question the reliability of climate model projections of future temperature change and has led to a vigorous debate over whether this slowdown is the result of naturally occurring, internal variability or forcing external to Earth's climate system.

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.

In 1896, the Swedish chemist Svante August Arrhenius proposed that changing concentrations of CO2 in the atmosphere would lead to more temperature variability in the poles.

«This trend is not seen during the industrial period, where Northern Hemisphere temperature changes, driven by humanmade forcings, precede variability in the marine environment.»

To find out how average monthly temperatures had changed from 1847 to 2013, the researchers used an advanced statistical time series approach to figure out what changes in temperature were due to natural variability and what changes represented a long - term trend.

Whilst PET does show brown fat activity, it is subject to a number of limitations including the challenge of signal variability from a changing environmental temperature.

Variability of central European temperature and precipitation shows correlations with some major historical changes.

In the 1980s, natural variability accounted for almost half of the temperature changes seen.

The results suggest that the impact of sea ice seems critical for the Arctic surface temperature changes, but the temperature trend elsewhere seems rather due mainly to changes in ocean surface temperatures and atmospheric variability.

Because they are habitat specialists requiring a very specific amount of precipitation, they are likely to be unprepared to face ongoing temperature variability and changing precipitation levels.

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 factors).

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.

Its results show a large range of natural summer temperature variability and identify distinct phases of rapid change.

Borodina, A., Fischer, E. M. & Knutti, R. Emergent constraints in climate projections: a case study of changes in high - latitude temperature variability.

Huntingford, C., Jones, P. D., Livina, V. N., Lenton, T. M. & Cox, P. M. No increase in global temperature variability despite changing regional patterns.

Both that study and Trenary's, which focused on the East Coast, looked to see if the relative rarity of the event could be linked to changes in the variability of wintertime temperatures.

We present a new modeling system that predicts both internal variability and externally forced changes and hence forecasts surface temperature with substantially improved skill throughout a decade, both globally and in many regions.

Brown, P. T., Y. Ming, W. Li, S. A. Hill (2017) Change in the magnitude and mechanisms of global temperature variability with warming.

However, it is expected that — given the combination of changes in precipitation variability, changed snowpack, and rising temperatures — future droughts will be more severe when they do occur.

From this close correlation, McLean et al argued that more than two thirds of interseasonal and long - term variability in temperature changes can be explained by the Southern Oscillation Index.

For birds and amphibians, we considered exposure to five components of climate change, namely changes in mean temperature, temperature variability, mean precipitation, precipitation variability and sea level rise.

Rather, it sampled how sensitive they are to climate «variability» — defined in the study as monthly changes in temperature, precipitation or water availability, and cloud cover.

Changes in the frequency and magnitude of climate extremes, of both moisture and temperature, are affected by climate trends as well as changing variability.

In addition, both internal variability and aerosol forcing are likely to affect tropical storms in large part though changes in ocean temperature gradients (thereby changing ITCZ position and vertical shear), while greenhouse gases likely exert their influence by more uniformly changing ocean and tropospheric temperatures, so the physics of the problem may suggest this decomposition as more natural as well.

In Atmospheric Controls On Northeast Pacific Temperature Variability And Change, 1900 — 2012, Johnstone 2014 showed the Pacific Decadal Oscillation can explain climate change in the Pacific northeast without invoking greenhouse Change, 1900 — 2012, Johnstone 2014 showed the Pacific Decadal Oscillation can explain climate change in the Pacific northeast without invoking greenhouse change in the Pacific northeast without invoking greenhouse gases.

This is seen in Johanessen et al 2009, «Arctic climate change: observed and modelled temperature and sea - ice variability.»

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

It probably trends the global temperature anoamlies well, becuase, well, global temperature changes are causing unadjusted AMO variability.

Here we show that fluctuations in Antarctic Ice Sheet discharge caused by relatively small changes in subsurface ocean temperature can amplify multi-centennial climate variability regionally and globally, suggesting that a dynamic Antarctic Ice Sheet may have driven climate fluctuations during the Holocene.

Thanks for publishing this, there are folks who denigrated the work of scientists that claimed a solar - climate (temperature) link because the variability in solar energy output just wasn't enough to explain the temperature swings, and perhaps they now realize that there could be another mechanism - similar to a transistor where small changes in gate voltage can affect large changes in power transmission - whereby solar activity can create significant effects on temperature.

So, it follows on phtysical grounds that any temperature change at the surface gets amplified aloft which means that the variability in temperature (solely the «dry» energy term) is larger aloft than at the surface.

A natural coupled mode of climate variability associated with both surface temperature variations tied to El Niño and atmospheric circulation changes across the equatorial Pacific (see also «Southern Oscillation Index»).

Based on the comparison between reconstructions and simulations, there is high confidence that not only external orbital, solar and volcanic forcing, but also internal variability, contributed substantially to the spatial pattern and timing of surface temperature changes between the Medieval Climate Anomaly and the Little Ice Age (1450 to 1850).

The attribution of the term at regional scales is complicated by significant regional variations in temperature changes due to the the influence of modes of climate variability such as the North Atlantic Oscillation and the El Nino / Southern Oscillation.

As with most titles, however, this one simplifies the chain of causality (global climate change - > increased temperature variability - > increased infection - > increased frog sickness) and hopefully invites readers to read further.

Some years back, we hypothesized that changes to climate variability, rather than changes to mean climate, might tip the balance towards the chytrid fungus because all pathogens are smaller and have faster metabolisms than their hosts, and thus might acclimate more quickly following short - term temperature shifts [link].

Thus our hypothesis predicts increased infection with climate change, due to increased temperature variability.

The changes in latent in sensible and latent heat flux from ocean to atmosphere that occur during El Nino (greater flux) and La Nina (lower flux) are of course key to understanding the short term variability in tropospheric temperatures.

Changes here have a long term effect, affecting the strength of the north - ward horizontal flow of the Atlantic's upper warm layer, thereby altering the oceanic poleward heat transport and the distribution of sea surface temperature (SST — AMO), the presumed source of the (climate) natural variability.

The climate change literature offers a reasonable consensus that anthropogenic global climate change is increasing the variability of climate, including central Pacific El Niño events and temperature fluctuations in tropical and subtropical regions.

Two things have changed in recent years — first, the temperature changes over the historical period are now more persistent, and so the trend in relation to the year - to - year variability has become more significant (this is still true even if you think there has been a «hiatus»).

Consequently, it seems likely that increased temperature variability due to climate change has accelerated chytrid - related frog declines and extinctions.

Thus, the title of the USF press release, «Frogs Getting Sick from Climate Change,» is accurate in suggesting that climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cChange,» is accurate in suggesting that climate change caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cchange caused increased frog infection and infection - induced mortality, whether one interprets «climate change» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate cchange» as referring to the short - term temperature shifts investigated by our experiments, or to increased temperature variability caused by global climate changechange.