Sentences with phrase «of terrestrial systems»

Abstract: The HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey searches for dust near the habitable zones (HZs) around nearby, bright main sequence stars.

Our overall detection rate is 18 %, including four new detections, among which are... ▽ More The HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey searches for dust near the habitable zones (HZs) around nearby, bright main sequence stars.

«The model we developed and applied couples biospheric feedbacks from oceans, atmosphere, and land with human activities, such as fossil fuel emissions, agriculture, and land use, which eliminates important sources of uncertainty from projected climate outcomes,» said Thornton, leader of the Terrestrial Systems Modeling group in ORNL's Environmental Sciences Division and deputy director of ORNL's Climate Change Science Institute.

That is the question the Hunt for Observable Signatures of Terrestrial Systems, or HOSTS, Survey was tasked with answering, albeit on a cosmic scale.

With the current GHG content in the atmosphere, more solar energy arrives than leaves via radiation -LRB-.85 + / -.15 Watt / m ^ 2), which raises the heat content of the terrestrial system, i.e., the average temperature over the whole earth + oceans + atmosphere.

At present there is less theoretical basis for a first principles development of the dynamical behaviour of the terrestrial system.

Such reliance is data intensive and hence independent validation of terrestrial system models is problematical.

It was set up to develop a balanced and integrated system of in situ, air - and spaceborne observations of the terrestrial system.

Not exact matches

«If Jupiter or Neptune had migrated inward after the terrestrial planets formed, it seems unlikely that our Solar System would have an Earth, or any of the terrestrial planets at all,» he told Phys.org.

While such simplifying assumptions were deemed acceptable in the past, they can no longer be regarded as a correct reflection of the underlying dynamics of any realistic natural system.12 Above all, we have shown the contingent (or probabilistic) nature of all dynamically evolving systems at both the microscopic (atomic and sub-atomic) and macroscopic (terrestrial) levels.

[246][248] Tourism Landmarks, National Border, Region and Terrestrial plain of the 4th Republic of Ghana Coastal Plain Accra, Apam, Cape Coast, Elmina, Kakum National Park, Kokrobite, Nzulezo, Sekondi - Takoradi, Ada Foah The Gulf of Guinea coastal plain with the seat of government and capital city, several castles and forts and the best preserved rainforest in Ghana Ashanti - Kwahu Koforidua, Kumasi, Obuasi, Sunyani Forested hills and the ancient Kingdom of Ashanti Volta Basin Tamale massive and world's largest Lake Volta, the river system that feeds it and Ghana eastern border crossing Northern Plains Wa, Bolgatanga, Mole National Park Savanna plains and north Ghana trade route and border crossing

The lead author of the new study, Guillem Anglada [1], from the Instituto de Astrofísica de Andalucía (CSIC), Granada, Spain, explains the significance of this find: «The dust around Proxima is important because, following the discovery of the terrestrial planet Proxima b, it's the first indication of the presence of an elaborate planetary system, and not just a single planet, around the star closest to our Sun.»

The new realization of the International Terrestrial Reference System DTRF2014, created by the geodesists at the TUM on behalf of the International Earth Rotation and Reference Systems Service, is already eagerly awaited in the expert community.

The International Monitoring System (IMS), established by the Comprehensive Nuclear - Test - Ban Treaty, has a number of different ears to the ground to detect clandestine nuclear weapons testing: seismic networks that listen for terrestrial shock waves, hydroacoustic networks that scan the oceans for sound waves, and radionuclide networks to sniff out radioactive particles that nuclear explosions produce.

«The timing of snowmelt and length of the snow - free season significantly impacts weather, the permafrost, and wildlife — in short, the Arctic terrestrial system as a whole,» said Christopher Cox, a scientist with CIRES at the University of Colorado Boulder and NOAA's Physical Sciences Division in Boulder, Colorado.

«This extreme variability is increasingly imprinted on these freshwater, terrestrial, and marine systems, and this has caused them to become more synchronous with one another with a number of implications for fisheries, drought, snowpack, and tree growth.»

Cosmic forces determine the abundances of the terrestrial elements, the ultimate source of energy for the Earth is the Sun, and cosmic events over the ages have shaped the course of the evolution of the Solar System.

Major challenges in the near future include assigning clearer attribution to sea ice as a primary driver of such dynamics, especially in terrestrial systems, and addressing pressures arising from human use of arctic coastal and near - shore areas as sea ice diminishes.

Similar objects in the Solar System likely delivered the bulk of water on Earth and represent the building blocks of the terrestrial planets.

The rise of industrial systems in the past century has transformed the majority of the terrestrial biosphere into intensively used anthromes dominated by novel ecological processes.

We explore the implications of fully integrating terrestrial systems and the energy system into a comprehensive mitigation regime that limits atmospheric CO2 concentrations.

From John HarveyIt is not only in terrestrial systems that tomatoes can indicate the past presence of wastewater pollution (16...

In the Solar System, the asteroid belt contains the leftover building blocks for the terrestrial planets Mercury, Venus, Earth, and Mars, so planetary scientists study the asteroids to gain a better understanding of how rocky, and potentially habitable planets are formed.

Dr David Armstrong from the University of Warwick's Astronomy and Astrophysics Group, commented: «Mercury stands out from the other Solar System terrestrial planets, showing a very high fraction of iron and implying it formed in a different way.

Electric currents that flow into and out of the ionosphere, which AMPERE monitors, have various effects on it as well as the atmosphere in general that can cause problems with tracking LEO space debris, the use of GPS systems, and even terrestrial power plants — as was the case when a geomagnetic storm took down Quebec's power grid in 1989, Anderson says, adding, «The operators didn't know what was happening.»

Long roots, said Glover as he unfurled the 10 - foot roots of a native big bluestem plant, are «our terrestrial system's safety net.»

To better understand the likelihood of such a scenario in the Earth - Moon system's origin, Richard C. Greenwood and colleagues analyzed the oxygen isotopic compositions of a large set of lunar and terrestrial samples.

HSS» hypothesis was based on a terrestrial environment mostly involving insects and their predators, with the Kaibab mule deer irruption the sole example presented of a mammalian system.

The research, which was funded by the Royal Society, forms part of a broader programme of study challenging the traditional division between marine ecology and «mainstream» ecology, the notion that marine systems are somehow fundamentally different from terrestrial systems, and that this demands separate research approaches and indeed research institutes — to study them.

Loss of large bodied terrestrial and aquatic fauna may have had a huge impact on systems and suggests many trophic cascades that formerly arose fromtop predators have vanished.

Because the chemistry is so similar, such planets are more likely to have similar minerals and rocks to Earth and the other terrestrial planets of the solar system.

The very complex olfactory system of modern insects is therefore not an adaptation to a terrestrial environment when ancient insects migrated from water to land, but rather an adaptation that appeared when insects developed the ability to fly.

Now astronomers are parting the veil with telescopes that detect infrared light, the kind of light central to terrestrial night - vision systems.

Terrestrial radio transmissions in E-band are suitable as a cost - effective replacement for deployment of optical fiber or as ad - hoc networks in the case of crises and catastrophe, and for connecting base stations in the backhaul of mobile communication systems.

«The carbon cycling that happens in freshwater systems needs to be accounted for in estimates of terrestrial production,» Holgerson said.

They refer frequently to their «design system», Echoes (Environmentally Controlled Human Operational Enclosed / External Space), that appears primarily to be a set of vague or obscure guidelines such as this, which appears under the puzzling heading «Lines of sight for healthy living buildings»: «The building spot must be geologically undisturbed... ascertain that there is no disturbance of cosmic and terrestrial influence on the human life form (DNA)... take care of harmonic measures, properties and forms».

Simulating the assembly of the solar system around 4.56 billion years ago, researchers propose that the Red Planet didn't form in the inner solar system alongside the other terrestrial planets as previously thought.

This study highlights the key role of vegetation in controlling future terrestrial hydrologic response and emphasizes that the continental carbon and water cycles are intimately coupled over land and must be studied as an interconnected system.

But we already have some good terrestrial carbon sequestration systems, including the vast subarctic peat forests of Russia and North America, the huge equatorial peat forests of Borneo, the Amazon basin and the smaller forests in New Zealand, Tasmania and South America.

Understanding the origin and fate of methane on these bodies will provide crucial clues to the processes that shape the formation, evolution and habitability of terrestrial worlds in this solar system and possibly in others.

«[This] study has important global implications, because we know early plants cooled the climate and increased the oxygen level in the Earth's atmosphere,» conditions that supported the expansion of terrestrial animal life, says Tim Lenton, an earth system scientist at the University of Exeter in the United Kingdom who was not involved with the work.

My research focuses on the formation of terrestrial planets in our Solar System and around other stars, especially with regards to the delivery of water and other biologically - important materials.

These doughnut - shaped objects might even explain the formation of other terrestrial planets like Mars, Venus, and many more outside our solar system.

This session examined the biogeochemical processes that are likely to affect the evolution of the Earth system over the coming decades, with a focus on the dynamics of marine and terrestrial ecosystems and the development of improved understanding through (a) fieldwork and laboratory experiments, (b) development of new observational datasets, both modern and palaeo, and (c) simulations using numerical models.

«This supports the idea that the star originally had a full complement of terrestrial planets, and probably gas giant planets, orbiting it — a complex system similar to our own.»

In this paper, we review the scientific aspects of planetary space weather at different regions of our Solar System, performing a comparative planetology analysis that includes a direct reference to the circum - terrestrial case.

In the latter half of 2008, two teams of astronomers began technically difficult searches for small terrestrial planets around the two brightest stars of the Alpha Centauri triple system.

More generally, these two results demonstrate that the longterm habitability (and astronomical observables) of a terrestrial planet can depend on the detailed architecture of the planetary system in which it resides.

Pat's general research interests include (1) the evolution of birds, (2) the relationship between osteological features and different soft - tissue systems (e.g., pulmonary, neurosensory), and (3) the biogeographic history of terrestrial vertebrates on Gondwanan landmasses during the latter half of the Mesozoic.

During the Mesozoic, drifting continents and fluctuating sea levels created a dynamic global system, influencing the distribution of animals and the evolution of terrestrial ecosystems.