Unmanned aerial system and tethered balloon system measurements have supplemented ARM Mobile Facility data to help improve understanding of
atmospheric processes in the Arctic.
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.
«Understanding the links between stratospheres and chemical compositions is critical to studying
atmospheric processes in exoplanets,» co-author Nikku Madhusudhan from the University of Cambridge, said in the statement.
«Understanding the links between stratospheres and chemical compositions is critical to studying
atmospheric processes in exoplanets,» said co-author Nikku Madhusudhan of the University of Cambridge, United Kingdom.
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.
Not exact matches
In advancing these theories they disregard factors universally admitted by all scientists — that in the initial period of the «birth» of the universe, conditions of temperature, atmospheric pressure, radioactivity, and a host of other catalytic factors were totally different than those existing presently, including the fact that we don't know how single atoms or their components would bind and consolidate, which involved totally unknown processes and variables, as single atoms behave far differently than conglomerations of atom
In advancing these theories they disregard factors universally admitted by all scientists — that
in the initial period of the «birth» of the universe, conditions of temperature, atmospheric pressure, radioactivity, and a host of other catalytic factors were totally different than those existing presently, including the fact that we don't know how single atoms or their components would bind and consolidate, which involved totally unknown processes and variables, as single atoms behave far differently than conglomerations of atom
in the initial period of the «birth» of the universe, conditions of temperature,
atmospheric pressure, radioactivity, and a host of other catalytic factors were totally different than those existing presently, including the fact that we don't know how single atoms or their components would bind and consolidate, which involved totally unknown
processes and variables, as single atoms behave far differently than conglomerations of atoms.
The main objectives of this mission are to search for evidence of methane and other trace
atmospheric gases that could be signatures of active biological or geological
processes and to test key technologies
in preparation for ESA's contribution to subsequent missions to Mars.
«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.
«
In fact, it meant that the
process causing the
atmospheric 15N15N enrichment has to fight against this biological signature.
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.
The organic (carbon - containing) compounds they studied
in that patch of Colorado forest play a key role
in atmospheric chemical
processes that can affect air quality, the health of the ecosystem, and the climate itself.
Seeding clouds with chemical coolants could keep the games dry, but if
atmospheric conditions are not favorable the
process could also result
in a rainout
Researchers use
atmospheric models to simulate this
process in the Amazon.
«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.
Rather, they are the result of the peculiar
processes that unfold
in a place cold enough that
atmospheric carbon dioxide can freeze into snowy layers of dry ice.
In this process, also known as the biological pump, atmospheric CO2 is stored in sedimentary deposits over geological time period
In this
process, also known as the biological pump,
atmospheric CO2 is stored
in sedimentary deposits over geological time period
in sedimentary deposits over geological time periods.
Today
in Nano Letters, the group presents a
process that turns
atmospheric CO2 into carbon nanofibers similar to valuable materials used
in industries such as aerospace, construction, and electronics.
Photosynthesis — the
process green plants use to convert energy from the sun that plants use to grow — from tropical forests, plays a huge role
in determining global
atmospheric CO2 concentration, which is closely linked the global temperature and rate of climate change.
Undertaken by University of Adelaide
in collaboration with CSIRO, the research could make viable a
process that has enormous potential to replace fossil fuels and continue to use existing carbon - based fuel technologies without increasing
atmospheric CO2.
Microbial
processes in Taiwan's Central Mountain Range may point to a new source of
atmospheric carbon.
It can attach to dust particles and rain out of the sky,
in a
process called
atmospheric deposition.
Due to low levels of
atmospheric oxygen, the
process may have been fermentative, still found
in microbes such as yeast today.
That excess tropical energy fueled rising air
in a
process known as convection, creating rain, releasing heat, and forming large - scale
atmospheric patterns called Rossby waves.
«The change
in flux described by our model happens over extremely long time periods, and it would be a mistake to think that these
processes that are bringing about any of the
atmospheric changes are occurring due to anthropomorphic climate change,» he said.
The research may force a re-examination of the role of acidity
in atmospheric chemistry, especially where it affects key
processes in climate change models.
Secondly, the slow variation
in this high - pressure ridge is enhanced by filtering out the
atmospheric noise through land soil
processes.
In contrast, Coskata says its
process works at relatively low pressure and temperature: about twice
atmospheric pressure and 97 degrees Fahrenheit.
Natural geochemical
processes that result
in the slow buildup of
atmospheric carbon dioxide may have caused past geologic intervals of global warming through the greenhouse effect
He wants to know whether the tendency of emitted compounds to end up as long - lived
atmospheric components is generally applicable to other compounds and how this
process might coexist or compete with other
processes occurring
in the atmosphere.
Reactions
in and on sea - salt aerosol particles may have a strong influence on oxidation
processes in the marine boundary layer through the production of halogen radicals, and reactions on mineral aerosols may significantly affect the cycles of nitrogen, sulfur, and
atmospheric oxidants.
Once the monthly temperature data is collected and
processed, it is placed
in a «public» computer file for immediate access by
atmospheric scientists
in the U.S. and abroad.
Plants convert
atmospheric carbon dioxide into energy
in the form of sugars, which they can use to fuel any number of vital life
processes.
Researchers have long known the region is crucial
in the uptake of
atmospheric CO2 and that biological
processes in the Southern Ocean influence the global ocean system via northward flowing currents.
So
in other words, you know, P is going to be about 1.2, S is going to be about 2, and E, say we do super-well
in efficiency, it's a 0.5, because there's a mix of things like lighting that you can do super-well, and things like making fertilizer, where you're literally, unless there's something we're not seeing, we're close to the, you know, taking
atmospheric N2 and making fertilizer's got an energy cost that — actually, those
processes are so amazing, they're within like 20 percent of what we think that minimum looks like.
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 show that uptake of
atmospheric NH3 (ammonia) onto surfaces containing TiO2 (titanium dioxide) is not a permanent removal
process, as previously thought, but rather a photochemical route for generating reactive oxides of nitrogen that play a role
in air pollution and are associated with significant health effects,» the authors write.
The same fractionation
process that could turn a solar sample of xenon into a modern - day
atmospheric sample of xenon would leave a deficit
in light isotopes of krypton, compared with what is found
in Earth's present atmosphere.
«Fifty - four percent of that is fertilizer — the Haber - Bosch
process; 11 percent is
atmospheric deposition — the plus side of pollution; 18 percent is
in situ fixation,» or nitrogen - fixing cover crops, like legumes, Sanchez said.
In the «Proceedings of the National Academy of Sciences» (PNAS), the team has now studies how different biogenic compounds produce ELVOC's and how relevant these compounds are for the
atmospheric processes.
Iron encourages the bloom of tiny algae called phytoplankton, which take
in carbon dioxide (CO2) dissolved
in the ocean for photosynthesis; that
process in turn draws
atmospheric CO2 into the surface waters.
«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.
Roe and his U.W. co-author,
atmospheric physicist Marcia Baker, argue
in Science that, because of this inherent climate effect, certainty is a near impossibility, no matter what kind of improvements are made
in understanding physical
processes or the timescale of observations.
Scientists use data from the SGP to learn about cloud, aerosol, and
atmospheric processes, which
in turn leads to improvements
in models of the Earth's climate.
These data are used
in large - eddy simulation (LES) models, which simulate
atmospheric air currents and cloud
processes, to provide context and a self - consistent representation of the atmosphere surrounding the SGP.
Propose numerical experiments aiming to refine numerical techniques and the formulation of
atmospheric physics
processes, boundary layer
processes and land surface
processes in models.
Photosynthetic
processes are accelerated with the increased availability of carbon dioxide
in the atmosphere and, hence, it is conjectured that ring growth would also be correlated with
atmospheric carbon dioxide; see Graybill and Idso (1993).
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.
Since among the main goals of this mission are the characterization of
atmospheric loss
processes (with special attention to water) and the identification of their relation to the solar wind (Bougher et al. 2014), major scientific return related to space weather is expected
in the next years.
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.