Sentences with phrase «as atmospheric changes»

Not exact matches

It is entirely likely that causes such as fluctuations in the sun's intensity and volcanic eruptions may have contributed to a change in the global atmospheric temperature.

Also, Ice core samples that go back as far as 800,000 years have atmospheric gasses trapped within, so give a source to determine the make - up of the air, showing consistant level of carbon... directly refuting the AiG site that claimns the air has changed.

There is also growing understanding of the links between atmospheric problems such as local air pollution, acid rain, global climate change and stratospheric ozone depletion.

Combined with a decrease in atmospheric water vapor and a weaker sun due to the most recent solar cycle, the aerosol finding may explain why climate change has not been accelerating as fast as it did in the 1990s.

The new study covers the entire U.S. West, from the High Plains states to the Pacific coast, and provides the first detailed look at how groundwater recharge may change as the climate changes, said senior author Thomas Meixner, UA professor and associate department head of hydrology and atmospheric sciences.

The indirect effects of rising atmospheric carbon dioxide (CO2) levels, such as changes in soil moisture and plant structure, can have a bigger impact on ecosystems than previously thought.

Countless additional forces — melting ice sheets, shifts in precipitation, changes in atmospheric and oceanic circulation, to name a few — will influence the process as well.

That would cover seasonal changes in climate, lakes and atmospheric circulation vital to understanding Titan as a whole.

Black carbon aerosols — particles of carbon that rise into the atmosphere when biomass, agricultural waste, and fossil fuels are burned in an incomplete way — are important for understanding climate change, as they absorb sunlight, leading to higher atmospheric temperatures, and can also coat Arctic snow with a darker layer, reducing its reflectivity and leading to increased melting.

As the shock wave travels away from the blast, it changes the atmospheric pressure and creates a low - pressure trough in its wake.

Beyond basic subjects such as climate and weather, this site from the U.K. Department of Environment, Food & Rural Affairs covers a wide range of pressing atmospheric science issues including acid rain, air quality, climate change, global warming and ozone depletion.

Using sophisticated atmospheric and climate models, the researchers estimated the levels of PM2.5 directly attributable to wildfires during a recent six - year period, 2004 to 2009, as well as under projected future climate change conditions (2046 - 2051).

As atmospheric CO2 levels rise, those in the oceans do too, changing the chemistry of the seawater.

But in the case of atmospheric pressure low - density plasma, due to the influences of changes in the atmospheric pressure in a plasma as well as around the plasma, it was difficult to accurately measure electron density.

«As remarkable as it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic historAs remarkable as it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic historas it is that climate can change that quickly naturally, what is even more remarkable is that some of the rates of change we're experiencing today — increases in atmospheric carbon dioxide for example — are faster than anything we've been able to find in the past several million years of geologic history.

World weather patterns will also start to change, as a frigid Antarctic continent and the icy ocean currents that surround it play an important role in global atmospheric and oceanic circulation.

Gentine and his team are now exploring ways to model how biosphere - atmosphere interactions may change with a shifting climate, as well as learning more about the drivers of photosynthesis, in order to better understand atmospheric variability.

According to the study, winter flooding in the UK is set to get more severe and more frequent under the influence of climate change as a result of a change in the characteristics of atmospheric rivers (ARs).

As the balloon rises in altitude, the change in atmospheric pressure on the balloon also changes, and the pressure waves are larger than infrasound waves.

«When we look at this critical assembly protein, CGL71, it's as if we are looking back in time to the era when photosynthetic apparatus had to gradually adjust to the changing atmospheric conditions of our planet,» Grossman said.

«As a result, some atmospheric circulations systems can not be resolved by these models, and this clearly impacts the accuracy of climate change predictions as shown in our study.&raquAs a result, some atmospheric circulations systems can not be resolved by these models, and this clearly impacts the accuracy of climate change predictions as shown in our study.&raquas shown in our study.»

Non-polar glacial ice holds a wealth of information about past changes in climate, the environment and especially atmospheric composition, such as variations in temperature, atmospheric concentrations of greenhouse gases and emissions of natural aerosols or human - made pollutants... The glaciers therefore hold the memory of former climates and help to predict future environmental changes.

But it is a complicated picture: the effect that extra atmospheric CO2 has in these kind of experimental setups might not reflect its effects in the real world, where other factors — such as elevated heat, or changes in precipitation — come into play.

In the North Atlantic, more heat has been retained at deep levels as a result of changes to both the ocean and atmospheric circulations, which have led to the winter atmosphere extracting less heat from the ocean.

When it comes to climate change science, researchers typically use atmospheric carbon dioxide levels from the late 19th century as a guideline, because that's when instrumentation was developed to accurately measure temperatures.

«These findings add to mounting evidence suggesting that there are sweet spots or «windows of opportunity» within climate space where so - called boundary conditions, such as the level of atmospheric CO2 or the size of continental ice sheets, make abrupt change more likely to occur.

In the field of planetary and atmospheric sensing, linear arrays capable of simultaneously measuring height - resolved spectral features would have a major impact on issues such as climate change and ozone chemistry,» explains Peter de Maagt, ESA's project manager for Star Tiger.

The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere.

Whereas the South Pole remains protected by differing geographic, atmospheric and oceanic conditions, the North Pole is undergoing rapid change not seen in at least 6,000 years and perhaps as much as 125,000 years, and which may spread to lower latitudes.

As for the paper's conclusion that removing atmospheric carbon is necessary in order to achieve the 2 ˚C target, climate scientist Richard Moss of the Pacific Northwest National Laboratory's Joint Global Change Research Institute in College Park, Maryland, says that's a nearly impossible goal «with what we know about today.»

The finding opens new avenues for predicting future trends in atmospheric nitrous oxide as well as in identifying climate change mitigation actions in the Arctic, a region that is particularly sensitive to climate change.

There are strong competing effects such as changes in the large - scale atmospheric circulation, sea surface temperature changes like El Niño and La Niña and the dynamics of westerly storm tracks that all interact at the mid-latitudes,» said Stanford co-author Matthew Winnick who contributed to the study with fellow doctoral student Daniel Ibarra.

The study argued that changes in the sun's radiation output played a major role in influencing shifts in Arctic air temperatures — a view at odds with mainstream climate science, which fingered atmospheric carbon dioxide as a bigger player.

There is, therefore, much current interest in how coccolithophore calcification might be affected by climate change and ocean acidification, both of which occur as atmospheric carbon dioxide increases.

«Changes in ocean conditions that affect fish stocks, such as temperature and oxygen concentration, are strongly related to atmospheric warming and carbon emissions,» said author Thomas Frölicher, principal investigator at the Nippon Foundation - Nereus Program and senior scientist at ETH Zürich.

«We came as close as one can to demonstrating a direct link between climate change and a large family of extreme recent weather events,» said Michael Mann, distinguished professor of atmospheric science and director, Earth System Science Center, Penn State.

Study lead author Michael Raupach, GCP co-chair and atmospheric physicist at Australia's Commonwealth Scientific and Industrial Research Organization, says it will take economic, policy and social changes to reverse the trend, such as capturing the CO2 emitted by coal - fired power plants and increased international cooperation.

For the study, Gentine and Lemordant took Earth system models with decoupled surface (vegetation physiology) and atmospheric (radiative) CO2 responses and used a multi-model statistical analysis from CMIP5, the most current set of coordinated climate model experiments set up as an international cooperation project for the International Panel on Climate Change.

A recent trend in GCMs is to extend them to become Earth system models, that include such things as submodels for atmospheric chemistry or a carbon cycle model to better predict changes in carbon dioxide concentrations resulting from changes in emissions.

Human activities emit about two times as much sulfur dioxide into the atmosphere, according to co-author Vitali Fioletov, an atmospheric scientist at Environment and Climate Change Canada in Toronto, Ontario.

The Arctic is changing rapidly under pressure from increasing temperatures and other stressors, such as atmospheric pollution.

Scientists are reluctant to directly link climate change with extreme weather events such as storms and drought, saying these fluctuate according to atmospheric conditions, but green groups link the two in their calls for action.

«I predict that due to the loss of these atmospheric whirlpools, the average temperature on Jupiter will change by as much as 10 degrees Celsius, getting warmer near the equator and cooler at the poles,» says Marcus.

For as much as atmospheric temperatures are rising, the amount of energy being absorbed by the planet is even more striking when one looks into the deep oceans and the change in the global heat content (Figure 4).

However, atmospheric change has profoundly affected the ocean, as well.

The effects on atmospheric carbon levels from landuse changes are highly uncertain, as I'm sure Ruddiman knows.

As discussed in the Climate chapter, large - scale atmospheric circulation patterns connected to changes in sea - surface temperatures strongly influence natural variations in precipitation and temperature (e.g., Cayan et al. 1999; Mantua and Hare 2002).

Changes in Hadley circulation affects convection and thus atmospheric moisture content and cloud cover which may in turn affect net solar heating as well as the transfer of heat from Earth to space.

Overall, studies are inconclusive as to net impacts of changing atmospheric chemistry and climate on seedling establishment and growth.

In addition, he praised her leadership with the National Center for Atmospheric Research in advancing the Weather Research and Forecasting model for climate research, and in projects such as the North American Regional Climate Change Assessment Program, as demonstration of her prominence in the atmospheric and climate science community.