Sentences with phrase «atmospheric losses for»

«Our analysis suggests that such space weather events may prove to be a key driver of atmospheric losses for exoplanets orbiting an active young Sun - like star,» the authors write.

Not exact matches

«People have thought about how forest loss matters for an ecosystem, and maybe for local temperatures, but they haven't thought about how that interacts with the global climate,» said co-author Abigail Swann, a UW assistant professor of atmospheric sciences and of biology.

To determine whether declining pollutants deserve credit for the recovery, the researchers used a 3D atmospheric model to separate the effects of the chemicals from those of weather, which can affect ozone loss through winds and temperature, and volcanic eruptions, which deplete ozone by pumping sulfate particles into the upper atmosphere.

Future missions like the James Webb Space Telescope, which NASA will launch in 2019 to peer into the early history of the universe, will therefore «be essential for getting more information on stellar winds and exoplanet atmospheres,» the authors say, «thereby paving the way for more accurate estimations of stellar - wind induced atmospheric losses.»

At Mars, they are thought to be one possible mechanism for driving atmospheric loss.

«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.

The primary culprit for Mars» atmospheric loss is the solar wind!

NGIMS can provide a basis for models of present and past atmospheric loss.

Plants can minimize water loss by closing stomata, but this must be balanced by the need to take in atmospheric CO2 for sugar production.

The Sahara off - road experience was kept to a basic dirt trail on the approach to a hilltop site where Jeep had some Rubicons prepared for us to hop into (the turbo - four is excellent for crawling, offering the sort of predictable and smooth power delivery needed to keep everything shiny without worries about atmospheric loss at altitude).

After the moody, atmospheric Majora's Mask, a game primarily about facing death and loss, the cutesy, cartoonish art style for Wind Waker left a large part of the Zelda community feeling that Nintendo was taking the franchise in the wrong direction.

In this case atmospheric warming will soon become the dominant driver of ice loss, but prolonged ocean warming will delay its recovery for thousands of years.»

Proposed for the first two years are (1) laboratory end - to - end power efficiency measurements of laser to PV transmission and (2) field tests of beam atmospheric transmissivity losses.

The year 2007 was a «perfect storm» of atmospheric conditions for sea ice loss during all of the summer (Zhang et al. 2008, and others).

No I don't, I apply the Stern - Volmer equation which indicates that, for vibronically excited CO2 (bending mode) at atmospheric conditions near the surface, emission will be a very unlikely mode of energy loss.

Repeated drought and tree loss mean that there is increasing risk that the forest may one day cease to be a «sink» for atmospheric carbon released by the combustion of fossil fuels.

One concern is that harvesting massive amounts of naturally occurring seaweed for bioenergy could have comparable effects on atmospheric carbon dioxide and habitat loss or fragmentation as large - scale deforestation.

Energy loss at altitude is critical for atmospheric cooling and tropospheric convective circulation.

It isn't that abrupt cooling is the most probable outcome in the next century but that an atmospheric warming from any cause looks capable of triggering a loss of the warm water loop through the Labrador and Greenland Seas (the front - runner candidate for what has caused the observed global abrupt coolings of the past).

Greenhouse gas concentrations affect the atmospheric optical depth for infrared radiation, and increased opacity implies higher altitude from which earth's equivalent bulk heat loss takes place without being re-absorbed.

This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high - latitude snow cover, changes in Arctic - region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and / or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature / precipitation anomalies and extreme weather events over northern continents.

In order to get enough energy to allow for the known losses, the simplest model requires two atmospheric shells.

I did suggest some time ago to Dr Bob Tisdale across at WUWT that perhaps a difference in the rate of energy loss during both the warming and cooling phases of ENSO and PDO cycles, because of a change in the atmospheric albedo, could provide a physical explanation for the correlation they were describing, but the hypothesis was not favoured.

So, the estimates above for 1 cm progressive loss of resolution of atmospheric CO2 are relevant to the Vostok core.

Oxidation by chlorine (Cl) atoms in the marine atmospheric boundary layer is suggested as an additional sink for CH4, possibly constituting an additional loss of about 19 Tg (CH4) yr — 1 (Gupta et al., 1997; Tyler et al., 2000; Platt et al., 2004; Allan et al., 2005).

Note that solar energy loss calculations through the air mass do NOT account for reflections off of either high clouds or low clouds or atmospheric dust and turbidity: they are based on «clear sky» conditions regardless of clouds, dust, storms or wind.

The reduction from three to two orbit planes for atmospheric moisture and temperature profiling represents a loss in diurnal sampling (from 4 - to 6 - hour refresh) compared to the pre-Nunn-McCurdy NPOESS baseline, which will reduce the quality of diurnally averaged climate analyses.

Following cessation of emissions, removal of atmospheric carbon dioxide decreases radiative forcing, but is largely compensated by slower loss of heat to the ocean, so that atmospheric temperatures do not drop significantly for at least 1,000 years.

Greenhouse gases affect the atmospheric optical depth for infrared radiation, and increased opacity implies higher altitude from which earth's equivalent bulk heat loss takes place.

Given the rather diffuse ice cover in the Beaufort and Chukchi seas (Figure 5) combined with a return to favorable atmospheric conditions for ice removal, ice loss thus far in August has been faster than the 1979 - 2000 climatology.

Since forests are — in general — agencies that absorb atmospheric carbon, and help cool the planet, any loss can only accelerate global warming and create even more difficult conditions for the surviving woodlands.