Sentences with phrase «atmospheric processes at»

Not exact matches

«Quantifying the sulfur dioxide bull's - eyes is a two - step process that would not have been possible without two innovations in working with the satellite data,» said co-author Nickolay Krotkov, an atmospheric scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland.

«We now know that the lack of a protective magnetic field and the differing planetary rotation rates also play a role in ensuring that many of the atmospheric processes we observe on Earth occur at a much faster rate on Venus.

The team started by looking at the formation of the very small particles — a process called aerosol nucleation — by mimicking atmospheric conditions inside an ultraclean steel «cloud chamber», which Kirkby says is the cleanest ever created.

The setting gave scientists the rare opportunity to look at the impact of pollution on atmospheric processes in a largely pre-industrial environment and pinpoint the effects of the particles apart from other factors such as temperature and humidity.

«It's one of the clearest examples of how humans are actually changing the intensity of storm processes on Earth through the emission of particulates from combustion,» said Joel Thornton, an atmospheric scientist at the University of Washington in Seattle and lead author of the new study in Geophysical Research Letters, a journal of the American Geophysical Union.

The materials can also be processed at atmospheric pressure.

«We are developing a system at the ALS that can simulate all material loads and stresses over the course of the atmospheric entry process,» said Harold Barnard, a scientist at Berkeley Lab's ALS who is spearheading the Lab's X-ray work with NASA.

In contrast, Coskata says its process works at relatively low pressure and temperature: about twice atmospheric pressure and 97 degrees Fahrenheit.

John Cushman, Purdue University distinguished professor of earth, atmospheric and planetary science and a professor of mathematics, is commercializing a technology that could provide an «instantly rechargeable» method forelectric and hybrid vehicle batteries through a quick and easy process similar to refueling a car at a gas station.

«Not even if we let all organic material rot at the same time would the decay process use all the atmospheric oxygen.

Their findings have been recently published in EPJ D and are particularly relevant for the development of novel applications in medicine, health care and materials processing because they involve air at normal atmospheric pressure, which would make it cheaper than applications in inert gases or nitrogen.

«We are beginning to see the links in a chain that begins with solar - driven processes acting on gas in the upper atmosphere and leads to atmospheric loss,» said Bruce Jakosky, MAVEN principal investigator with the Laboratory for Atmospheric and Space Physics at the University of Colorado, Boulder.

There are many other atmospheric observations and models we need to look at to see how this entire process works.»

I am excited about our results because they open a new window on very fundamental processes in brown dwarfs (atmospheric circulation, heat exchanges, and cloud formation) and, at the same time, they also explain a number of past observations that puzzled brown dwarf experts.

While the exact mechanism for charging and for initiating lightning within the Venusian clouds is not currently known (Yair 2012) it is nonetheless likely that cosmic ray ionization has an important role in this process as it is believed to be the primary source of atmospheric ions at middle and low altitudes.

Importantly, the white graphene is produced in a standard atmospheric pressure chemical vapor deposition process, which Stehle and her colleagues believe could easily be scaled up to commercial production volume levels at a reasonable cost.

A 2008 study led by James Hansen found that climate sensitivity to «fast feedback processes» is 3 °C, but when accounting for longer - term feedbacks (such as ice sheet disintegration, vegetation migration, and greenhouse gas release from soils, tundra or ocean), if atmospheric CO2 remains at the doubled level, the sensitivity increases to 6 °C based on paleoclimatic (historical climate) data.

WCRP - JSC / CAS WGNE promotes co-ordinated numerical experimentation for validating model results, observed atmospheric properties, exploring the natural and forced variability and predictability of the atmosphere, (e.g. the Atmospheric Model Intercomparison Project, AMIP), as well as studies aimed at refining numerical techniques, and the formulation of atmospheric physics processes.

The UAS and TBS measurements have supplemented data obtained by the third ARM Mobile Facility at Oliktok Point — part of ARM's North Slope of Alaska atmospheric observatory — to help improve understanding of atmospheric processes in the Arctic.

Earth system models integrate atmospheric, oceanic, chemical, and biological processes, many of which are too complex or occur at scales too small to simulate directly (e.g., formation of individual clouds).

A new study confirms that this was not Floridians» imaginations: From 2011 to at least 2015, the rate of sea level rise across the southeastern US shot up by a factor of six, from 3 - 4 millimeters a year to 20, and a combination of oceanic and atmospheric processes seem to be responsible.

In August 2005, the scientists reported that they created this compound by compressing buckyballs — soccer ball - shaped molecules each made of 60 carbon atoms — at 2,200 degrees C and 200 times normal atmospheric pressure, a process that could lend itself to mass production.

This provides a stable reference temperature structure for the fast feedback processes to operate and maintain the amounts of atmospheric water vapor and clouds at their quasi-equilibrium concentrations.

The processes (absorption of light, collisional energy transfer and emission) can be separated because the average time that an isolated CO2 molecule takes before it emits a photon is much longer that the time for collisional de-excitation (~ tens of microseconds at atmospheric pressure, less, higher in the atmosphere).

New Study Finds Most Of Earth's Oxygen Used For Complaining SEATTLE — Following a multiyear study of atmospheric gases and their role in organic processes on earth, a team of researchers at the University of Washington reported this week that the majority of the oxygen on the planet is used for complaining.

Once the ice reaches the equator, the equilibrium climate is significantly colder than what would initiate melting at the equator, but if CO2 from geologic emissions build up (they would, but very slowly — geochemical processes provide a negative feedback by changing atmospheric CO2 in response to climate changes, but this is generally very slow, and thus can not prevent faster changes from faster external forcings) enough, it can initiate melting — what happens then is a runaway in the opposite direction (until the ice is completely gone — the extreme warmth and CO2 amount at that point, combined with left - over glacial debris available for chemical weathering, will draw CO2 out of the atmosphere, possibly allowing some ice to return).

Note that the atmospheric signal is smoothed during the pore close - off process, so that sharp fluctuations occurring at sub centennial timescales can not be resolved in Antarctic ice cores.

The correct way to ensure conservation of energy is at the grid cell level, i.e. you make sure that there's no creation or destruction of energy within each atmospheric cell and in transport processes among cells.

It is indeed true that at current atmospheric levels, CO2 would drop to 50 % of its current value over about 100 years (or perhaps less) if no more were added, so that recycling among the various components of the system were the only process ongoing.

Atmospheric crude oil distillation: The refining process of separating crude oil components at atmospheric pressure by heating to temperatures of about 600 degrees to 750 degrees Fahrenheit (depending on the nature of the crude oil and desired products) and subsequent condensing of the fractions by cooling.

Earth system models integrate atmospheric, oceanic, chemical, and biological processes, many of which are too complex or occur at scales too small to simulate directly (e.g., formation of individual clouds).

At toa all of the atmospheric processes are integrated into the energy dynamic.

At that time, much of the theory of how atmospheric heat transfer works was missing, but nevertheless, he got a lot of the process right.

Putting those two, theoretical, processes together with some shaky assumptions about aerosols, clouds and other atmospheric phenomena, and arriving at an assumption that the theoretical minor warming of CO2 is tripled is what concerns a true skeptic.

At this point the process of atmospheric restabalisation begins.

Please realise the difference tween fluctuations in temperature from short term fluctuations within processes of Turbulence (generally «atmospheric») and the release of Kinetic Energy from the slow & longer term reversion of Turbulent Cooling and the attached release of Kinetic Energy from the Masses seen at * (above and principally Oceanic).

Mazarella tells us that if we look at climate change as a part of a holistic process, we see that included in this single unit are changes in «atmospheric circulation» and «like a torque,» variations in atmospheric circulation can in and of themselves cause «the Earth's rotation to decelerate which in turn causes a decrease in sea temperature.»

Surely after decades of satellite measurements, countless field experiments, and numerous finescale modeling studies that have repeatedly highlighted basic deficiencies in the ability of comprehensive climate models to represent processes contributing to atmospheric aerosol forcing, it is time to give up on the fantasy that somehow their output can be accepted at face value.»

Since to me (and many scientists, although some wanted a lot more corroborative evidence, which they've also gotten) it makes absolutely no sense to presume that the earth would just go about its merry way and keep the climate nice and relatively stable for us (though this rare actual climate scientist pseudo skeptic seems to think it would, based upon some non scientific belief — see second half of this piece), when the earth changes climate easily as it is, climate is ultimately an expression of energy, it is stabilized (right now) by the oceans and ice sheets, and increasing the number of long term thermal radiation / heat energy absorbing and re radiating molecules to levels not seen on earth in several million years would add an enormous influx of energy to the lower atmosphere earth system, which would mildly warm the air and increasingly transfer energy to the earth over time, which in turn would start to alter those stabilizing systems (and which, with increasing ocean energy retention and accelerating polar ice sheet melting at both ends of the globe, is exactly what we've been seeing) and start to reinforce the same process until a new stases would be reached well after the atmospheric levels of ghg has stabilized.

Thirty years later, the relevance of this study has been realized in the development of stochastic approaches to represent cumulus convection and its upscale energy transports, and in the emerging efforts to resolve these multi-scale processes in atmospheric simulations at the cloud system - resolving scale (approx. 1 km).

Atmospheric scientist Dr. Hendrik Tennekes, a scientific pioneer in the development of numerical weather prediction and former director of research at The Netherlands» Royal National Meteorological Institute, and an internationally recognized expert in atmospheric boundary layer processes, «I find the Doomsday picture Al Gore is painting - a six - meter sea level rise, fifteen times the IPCC number - entirely without merit,» Tennekes wrote.

Tennekes, is an scientific pioneer in the development of numerical weather prediction and former director of research at The Netherlands» Royal National Meteorological Institute, and an internationally recognized expert in atmospheric boundary layer processes.

«Our climate simulations, using a simplified three - dimensional climate model to solve the fundamental equations for conservation of water, atmospheric mass, energy, momentum and the ideal gas law, but stripped to basic radiative, convective and dynamical processes, finds upturns in climate sensitivity at the same forcings as found with a more complex global climate model»

«Understanding what drives the meteorology on Saturn, and in general on gaseous planets, has been one of our cardinal goals since the inception of the Cassini mission,» said Carolyn Porco, imaging team lead, based at the Space Science Institute, Boulder, Colo. «It is very gratifying to see that we're finally coming to understand those atmospheric processes that make Earth similar to, and also different from, other planets.»

Thus, at least for the spring season, it seems unnecessary to invoke processes other than the atmospheric circulation to explain trends in Antarctic sea ice.

Climate change commitment - Due to the thermal inertia of the ocean and slow processes in the biosphere, the cryosphere and land surfaces, the climate would continue to change even if the atmospheric composition were held fixed at today's values.

WCRP - JSC / CAS WGNE promotes co-ordinated numerical experimentation for validating model results, observed atmospheric properties, exploring the natural and forced variability and predictability of the atmosphere, (e.g. the Atmospheric Model Intercomparison Project, AMIP), as well as studies aimed at refining numerical techniques, and the formulation of atmospheric physics processes.

Our climate simulations, using a simplified three - dimensional climate model to solve the fundamental equations for conservation of water, atmospheric mass, energy, momentum and the ideal gas law, but stripped to basic radiative, convective and dynamical processes, finds upturns in climate sensitivity at the same forcings as found with a more complex global climate model [66].

I was at an international conference on aerosol in September and I made a comment that we're getting to the stage with CLOUD where we will understand the processes extremely well, but we still won't be able to reduce the errors because we don't have good enough atmospheric observations of what the concentrations of these vapors are in the atmosphere versus altitude.

Reporting in Geophysical Research Letters, researchers looked at how the impacts caused by different strengths of geoengineering differed from region to region, using a comprehensive climate model developed by the UK Met Office, which replicates all the important aspects of the climate system, including the atmospheric, ocean and land processes, and their interactions.