| 单词 | albedo |
| 例句 | Typically they have an albedo, or reflectiveness, of just 4 percent about the same as a lump of charcoal–and of course these lumps of charcoal are about four billion miles away. A Short History of Nearly Everything 2003-05-06T00:00:00Z “The general albedo of Mercury is low and most of the soil is gray pumice. Something like the Moon, you know. Beautiful, isn’t it?” I, Robot 1950-12-02T00:00:00Z Might this cooling increase the size of the polar ice cap, which, because it is bright, will reflect still more sunlight from the Earth, further cooling the planet, driving a runaway albedo' effect? Cosmos 1980-01-01T00:00:00Z The earth’s albedo is four times that of the moon, which means it shines four times as brightly. Flying to the Moon: An Astronaut's Story 1976-01-01T00:00:00Z In technical terms, the albedo of the moon is .07, which means that it bounces back only 7 percent of the light striking it, absorbing the other 93 percent. Flying to the Moon: An Astronaut's Story 1976-01-01T00:00:00Z Estimated past changes in solar irradiance were prescribed as a change in the solar constant S whereas forcing by volcanic aerosols was prescribed as a change in the surface albedo a. Why global warming will cross a dangerous threshold in 2036 2014-03-21T12:30:00Z “The two root causes of climate change,” she repeatedly insists, are “the loss of albedo” — i.e., the reflective power of polar ice — and desertification “caused by ineffectual rainfall.” A Memoir That Sees Only the Tip of the Melting Iceberg 2021-01-12T05:00:00Z This measures the albedo, or reflectivity, of the snow — a key factor in how quickly it will melt. Scientists take flight to map California’s vast snowpack and measure flooding threats 2023-05-15T04:00:00Z The color of the snow can make a difference, as even a light dusting can reset the snow’s albedo, or measure of whiteness, which helps reflect solar radiation and prevent melting, Rizzardo said. Snowmelt flood risk to last for months, experts say 2023-04-05T04:00:00Z That is a concern for a variety of reasons: a loss of habitat for Arctic creatures and a decline in the albedo effect, which is when ice reflects sunlight back into space. Arctic ice has seen an ‘irreversible’ thinning since 2007, study says 2023-03-15T04:00:00Z White ice reflects the sun’s rays, but the dark ocean absorbs it and warms up — something called ice albedo feedback. Arctic sea ice thins in 2 big jumps, and now more vulnerable 2023-03-15T04:00:00Z On the other hand, moose feeding also affected the reflectivity, or albedo, of the forests. Hungry moose fingered as possible factor in climate change 2023-03-11T05:00:00Z In fact, the study found that the reflectivity of snow — also known as albedo — declined as much as 71% when it fell onto burned areas, leading to fewer snow-covered days. Wildfire and drought are shrinking California's snowpack faster — and earlier — than ever 2023-02-14T05:00:00Z By measuring the sunlight reflected from Earth to the dark part of the moon at night, scientists measured what they call "earthshine" or albedo - basically Earth's reflectiveness. Climate change: Dimming Earth, mustard shortages and other odd side-effects 2022-11-11T05:00:00Z Natural changes in albedo, like the melting of sea ice or increases in cloud cover, have contributed to climate change in the past, often acting as feedbacks to other processes. Environmental Biology 2018-09-06T00:00:00Z Melting of ice and snow leads to several different types of feedbacks, an important one being a change in albedo. Physical Geology 2015-01-01T00:00:00Z The reflectivity of the Earth’s surface is called albedo. An Introduction to Geology 2017-01-01T00:00:00Z He said the effect of lower albedo in midwinter could make the snowmelt more vulnerable to “rain on snow events” and create challenges for reservoir management. Wildfire and drought are shrinking California's snowpack faster — and earlier — than ever 2023-02-14T05:00:00Z But it turns out forests can warm the planet, too, primarily by changing the reflectivity, or albedo, of land surfaces. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z The term albedo refers to the amount of solar radiation reflected from an object or surface, often expressed as a percentage. Environmental Biology 2018-09-06T00:00:00Z The same applies to ice and snow on land, but the difference in albedo is not as great. Physical Geology 2015-01-01T00:00:00Z A new albedo parameterization for use in climate models over the Antarctic ice sheet. An Introduction to Geology 2017-01-01T00:00:00Z Dust, ash and soot similarly affect snow by causing it to absorb more light in what is known as the “albedo effect.” Scorched trees could be drying up water supplies in California, western U.S. 2022-04-29T04:00:00Z In contrast, a continuous canopy of broadleaf trees can have an albedo of just 0.15, meaning the trees absorb solar energy and radiate it in the form of heat. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z Earth as a whole has an albedo of about 30%, meaning that 70% of the sunlight that reaches the planet is absorbed. Environmental Biology 2018-09-06T00:00:00Z During the current period of anthropogenic climate change, sea level has risen only about 20 cm, and although that doesn’t make a big change to albedo, sea-level rise is accelerating. Physical Geology 2015-01-01T00:00:00Z Dust, ash and soot similarly affect snow by causing it to absorb more light in what’s known as the “albedo effect.” After wildfires, scorched trees could disrupt water supplies 2022-04-20T04:00:00Z In some fire-damaged areas, state officials are beginning to map snow from planes with cameras that measure albedo and have plans to upgrade remote sensing stations, as well. Scorched trees could be drying up water supplies in California, western U.S. 2022-04-29T04:00:00Z A canopy of conifers can have an even lower albedo: 0.08. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z Human changes in land use and land cover have changed Earth’s albedo. Environmental Biology 2018-09-06T00:00:00Z Here, Tp is Earth’s temperature, T☉ is the sun’s temperature, R☉ is the sun’s radius, D is the distance to the sun, and a is Earth’s albedo, or reflectivity. A Modest Proposal: Let’s Change Earth’s Orbit 2021-06-18T04:00:00Z In some fire-damaged areas, state officials are beginning to map snow from planes with cameras that measure albedo and have plans to upgrade remote sensing stations as well. After wildfires, scorched trees could disrupt water supplies 2022-04-20T04:00:00Z This measurement, known as surface albedo, is key to understanding how much solar radiation is absorbed by the Earth and how much is reflected back into the atmosphere. First drone goes flying to the North Pole on a climate mission 2020-11-01T04:00:00Z In boreal and high-altitude regions that get a lot of snow, the expansion of forests is expected to have a major impact on albedo, as dark canopies replace snow-covered surfaces. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z Its high surface reflectivity, or albedo, throws back incoming solar radiation and keeps the ground beneath it relatively cool. Colorado River Is in Danger of a Parched Future 2020-02-21T05:00:00Z This strategy involves changing the albedo, or reflectivity of the stratosphere, so that more sunlight is reflected back into space before reaching the earth. The climate policy milestone that was buried in the 2020 budget 2020-01-14T05:00:00Z In the past 20 years, nations have tried volcano mimicking, cloud brightening, albedo modification and carbon dioxide removal. The environment in 2050: flooded cities, forced migration – and the Amazon turning to savannah 2019-12-30T05:00:00Z The capacity of the Arctic to relect heat is determined by something known as the albedo effect. Ice loss causing Arctic to reflect less heat 2019-11-11T05:00:00Z A young forest, for example, might warm the atmosphere because of its albedo effect. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z The glaciers play a vital role in what’s known as the planet’s albedo, the reflectivity of the earth’s surface. Indiana Jones of climate science: the professor who escaped a 70ft crevasse 2019-05-16T04:00:00Z Williams has found that some resist considering albedo effects, including representatives of companies hoping to sell carbon credits for forest projects. How much can forests fight climate change? 2019-01-14T05:00:00Z “Ryugu is featureless from an albedo, color and spectral perspective,” he says. Getting the Dirt on Creation--Inside OSIRIS-REx's First Close Look at Bennu 2018-12-19T05:00:00Z The team of scientists from the US used satellite data, which stretches back to the early 1980s, to determine the level of the albedo effect in the Arctic. Ice loss causing Arctic to reflect less heat 2019-11-11T05:00:00Z His measurements of biomass and albedo have shown that, so far, the warming caused by the dark canopy of the pines now exceeds the cooling from their carbon capture. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z Solar panels actually reduce the reflection of sunlight from the surface known as the albedo effect. Wind and solar 'could green the Sahara' 2018-09-06T04:00:00Z Forests can reduce Earth’s surface albedo, meaning that the planet reflects less incoming sunlight back into space, leading to warming. How much can forests fight climate change? 2019-01-14T05:00:00Z “Low albedo. Trajectory that put it in line with the sun. Small—” “We should have seen it!” A pilot fights to become the first female astronaut in alternate history novel The Calculating Stars 2018-06-24T04:00:00Z "These three factors contributed almost equally to the reduction of the surface albedo," explained co-author Hailong Wang, an earth scientist from Pacific Northwest National Laboratory in the US. Ice loss causing Arctic to reflect less heat 2019-11-11T05:00:00Z Few large-scale tree planting projects, for example, assess the potential climate downsides from a changing albedo. Climate change could expand forests. But will they cool the planet? 2022-05-19T04:00:00Z "The panels directly reduce the surface albedo which leads to more solar energy absorption and surface warming, which in turn strengthens the Saharan heat low, leading to more rising air and precipitation," Dr Li explained. Wind and solar 'could green the Sahara' 2018-09-06T04:00:00Z “Even other scientists sometimes have disbelief in the magnitude of the albedo effect, or even its existence,” he says. How much can forests fight climate change? 2019-01-14T05:00:00Z The albedo effect due to vanishing sea ice is already responsible for about 25 percent of global warming, according to Jennifer Francis, a research professor at Rutgers University’s School of Environment and Biological Sciences. Here’s what vanishing sea ice in the Arctic means for you 2018-05-10T04:00:00Z One view was that it played a significant role in the reduction of the albedo effect in the Arctic because the dark soot would absorb more sunlight, thus increasing warming. Ice loss causing Arctic to reflect less heat 2019-11-11T05:00:00Z Less stark white reflective surface, or albedo, means more dark ocean, which absorbs sunlight rather than repels it, thus speeding up the warming process and spurring further melting. Could sprinkling sand save the Arctic's shrinking sea ice? 2018-04-23T04:00:00Z The bright white surface of ice, known as albedo, is giving way to the dark ocean, meaning that sunlight is being absorbed rather than reflected, amplifying the warming effect. What happened to winter? Vanishing ice convulses Alaskans' way of life 2018-04-21T04:00:00Z Ellis, for one, acknowledges that the analysis he co-authored1 considered albedo effects only crudely; the team did not consider VOCs and methane emissions from trees. How much can forests fight climate change? 2019-01-14T05:00:00Z The albedo effect The albedo effect is just a fancy expression for a very simple concept: white surfaces like ice and snow reflect about 80 percent of the Sun’s energy back into space. Here’s what vanishing sea ice in the Arctic means for you 2018-05-10T04:00:00Z As the temperature warms, the albedo effect will continue to fall thus generating a positive feedback loop that will result in continual warming until the loop is broken. Ice loss causing Arctic to reflect less heat 2019-11-11T05:00:00Z The outer shell was fully radiation absorbent, so there was no albedo, making it invisible to any telescopes. Aliens watch the rise of humanity in an excerpt from Peter F. Hamilton’s sci-fi novel, Salvation 2018-02-07T05:00:00Z This shift, in turn, can be attributed to the influence of topography and albedo of the North American ice sheets on atmospheric circulation. Southern Hemisphere climate variability forced by Northern Hemisphere ice-sheet topography 2018-02-04T05:00:00Z Like algae, the dark particles cut down on the albedo, or reflectivity, of the otherwise white surface. Algae Growth Speeds Up Greenland's Melting 2017-12-21T05:00:00Z The team used spectrometers to measure the snow’s albedo. Measuring the snowpack goes high-tech with airborne lasers and radar 2017-06-11T04:00:00Z But her claims that all weather-control efforts are local and pertaining to water prevent her from any meaningful follow-up on technological fixes for climate warming, such as carbon dioxide removal or albedo modification. Meteorology: Weather makers : Nature : Nature Research 2017-04-04T04:00:00Z It can also have effects on snow’s albedo. Satellite eye on Earth: February 2017 – in pictures 2017-03-21T04:00:00Z Of the two main geoengineering approaches – altering the albedo, or reflectivity, of the Earth, and removing carbon from the atmosphere -- there have been more actual experiments involving carbon removal, including work at several companies. U.S. should pursue controversial geoengineering research, federal scientists say for first time 2017-01-09T05:00:00Z More sunlight is reflected into space with a higher surface albedo. How Reindeer Could Help Slow Climate Change in the Arctic 2016-12-22T05:00:00Z A thermal emissions detector produced a map of the planet’s albedo, or the brightness of the light reflected from its surface, which is basically what early astronomers were mapping with their telescopes. What Mars Maps Got Right (and Wrong) Through Time Its albedo, or reflectivity, is so low that it is almost indistinguishable from the surrounding space. NASA’s OSIRIS-REx blasts off on ambitious mission to visit asteroid, bring a piece home 2016-09-08T04:00:00Z But algal effects on albedo are going to be important for melting glaciers, which play a huge role in the climate system, said Dr. Lutz. Watermelon Snow: Not Edible but Important for Climate Change 2016-06-22T04:00:00Z It struck Dr. Myhrvold that the albedo calculations of the Neocam team violated a basic tenet of physics known as Kirchhoff’s law of thermal radiation, which says shinier objects radiate less heat. How Big Are Those Killer Asteroids? A Critic Says NASA Doesn’t Know. 2016-05-23T04:00:00Z The study, published in the journal Environmental Research Letters, focuses on a concept called surface albedo, a measure of the whiteness of a given surface. How Reindeer Could Help Slow Climate Change in the Arctic 2016-12-22T05:00:00Z “As warming continues, the feedback from declining albedo will add up,” Tedesco said. Greenland's ice melt accelerating as surface darkens, raising sea levels 2016-03-03T05:00:00Z In addition, millions of hectares of soil darkened by the application of biochar would decrease albedo, increasing heat absorption. Emissions reduction: Scrutinize CO2 removal methods Algae changes snow’s albedo, or how much light, or radiation, its surface reflects back into the atmosphere. Watermelon Snow: Not Edible but Important for Climate Change 2016-06-22T04:00:00Z The eastern lobe of the Tombaugh heart is more rugged than the west, with a lower albedo—or reflectivity—as a result. Here's the News From Pluto—Everyone's Favorite Little World 2015-10-15T04:00:00Z Scientists studying the footage say it's possible that the darker color of the poo is helping to melt the snow by absorbing extra heat — a process known as the albedo effect. Penguins use poo to melt snow 2015-04-30T04:00:00Z They also enabled the researchers to estimate the planet’s reflectivity, or albedo. Astronomers detect starlight reflected off an extrasolar planet 2015-04-22T04:00:00Z Describing the albedo effect—the phenomenon that explains how lighter substances reflect sunlight while darker items absorb its heat—she said permafrost thaw is also a growing concern. U.S. Takes Lead in Bid to Cope with Arctic Meltdown 2015-04-20T04:00:00Z Renamed “albedo modification” in the council report, it raises many questions. Geoengineering is Not a Solution to Climate Change 2015-03-10T04:00:00Z Still, despite the National Academy concluding that albedo modification is unacceptably risky at this time, the panel called for more research into the subject. Can We Fix Climate Change With Technology? 2015-03-02T05:00:00Z Atmosphere, radius, albedo, surface temperature — all key to understanding this curious little world. Planetary science: The Pluto siblings 2015-02-24T05:00:00Z “You might inject some salt particles in a coastal cloud belt and try to measure a change in albedo,” says Long. Elite science panel calls on U.S. to study climate modification 2015-02-10T05:00:00Z Fires in the planet's northern regions, he said, speed permafrost melt and contribute to the albedo effect by creating dark, exposed stretches of land. U.S. Takes Lead in Bid to Cope with Arctic Meltdown 2015-04-20T04:00:00Z No. Yet every scientist, including the council authors, is convinced that if albedo modification is implemented and not followed by a program of global emission reductions, then we are almost certainly finished. Geoengineering is Not a Solution to Climate Change 2015-03-10T04:00:00Z Lowering global temperatures by reducing sun exposure – euphemistically known as “albedo modification” – would also merely treat the symptom of climate change, rather than the cause. Can We Fix Climate Change With Technology? 2015-03-02T05:00:00Z “There is significant potential for unanticipated, unmanageable, and regrettable consequences in multiple human dimensions from albedo modification at climate altering scales,” the authors write. Climate geoengineering schemes come under fire 2015-02-09T05:00:00Z Here’s a visualization of some possible strategies for albedo modification: Elite science panel calls on U.S. to study climate modification 2015-02-10T05:00:00Z However, albedo modification would only temporarily mask the warming effect of greenhouse gases and would not address atmospheric concentrations of CO2 or related impacts such as ocean acidification. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z Already, politicians loathe to implement serious measures to cut emissions are privately attracted to the geoengineering technofix, including albedo modification, as a substitute. Geoengineering is Not a Solution to Climate Change 2015-03-10T04:00:00Z The U.S. is currently spending $4 billion on climate research, but just $100 million of that money goes to areas relevant to climate intervention and just $2 million to albedo research. Top U.S. scientists urge pursuit of technology to cool planet 2015-02-10T05:00:00Z The report eviscerates several approaches to climate intervention as too risky to try — including many schemes to reflect more sunlight than usual back into space, a process known as albedo modification. Climate geoengineering schemes come under fire 2015-02-09T05:00:00Z “There are both theoretical and observational reasons to believe that albedo modification has the potential to act rapidly to offset some of the consequences of global warming at a relatively low cost,” the report says. U.S. should fund climate engineering research, report concludes 2015-02-10T05:00:00Z In contrast, even the best albedo modification strategies are currently limited by unfamiliar and unquantifiable risks and governance issues rather than direct costs. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z Colour: Charcoal - based on its albedo, or the amount of incident light it reflects back into space. Rosetta mission: Can you land on a comet? 2014-11-04T05:00:00Z A much faster and lower-cost emergency approach would involve changing the Earth’s albedo, or the amount of solar radiation that is directed back into space. Top U.S. scientists urge pursuit of technology to cool planet 2015-02-10T05:00:00Z Scientists use the term "albedo" to describe an object's reflectiveness. Rosetta comet: More black swan than yellow duck 2014-10-17T04:00:00Z Harvard’s Keith leads a team that wants to conduct an albedo experiment that involves releasing roughly one half kilogram of sulfuric acid particles into the stratosphere to study its effects on ozone. U.S. should fund climate engineering research, report concludes 2015-02-10T05:00:00Z The committee said it would be “irrational and irresponsible” to implement sustained albedo modification without also pursuing emissions mitigation, carbon dioxide removal, or both. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z Higher reflectivity, or albedo, means the area absorbs less sunlight, thereby lowering the temperature. Hotter Heat Waves Deadly, But Cities Can Use Tricks for Cool Off 2014-07-10T04:00:00Z Research indicates that the Arctic's albedo may be declining much faster than was estimated only a few years ago. Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting 2014-07-05T04:00:00Z The research in Nature Geoscience this week adds to a body of recent research finding that the Arctic's albedo, or reflectiveness, may decline more sharply than original estimates. Wind-Blown Dust Darkens Greenland, Speeding Meltdown 2014-06-10T04:00:00Z Yet the authors warn that there could be “a chilling effect” on funding for fundamental atmospheric research if it becomes entangled in controversies over albedo modification. U.S. should fund climate engineering research, report concludes 2015-02-10T05:00:00Z Methods for reflecting sunlight, or increasing the planet’s “albedo,” are fraught with technical and diplomatic challenges. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z A temporary weather station will record air temperature, snow temperature and albedo changes over the two months we will be climbing and researching. Climbing Mount Everest In Search of Dirty Snow 2014-04-07T19:03:45Z There, Horodyskyj found that so much dust had been blown on to the surface that ability of the ice to reflect sunlight, a process known as albedo, dropped 20% in a single month. Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting 2014-07-05T04:00:00Z Estimated past changes in solar irradiance were prescribed as a change in the solar constant S whereas forcing by volcanic aerosols was prescribed as a change in the surface albedo a. Why Global Warming Will Cross a Dangerous Threshold in 2036 2014-04-01T04:00:00Z That’s why some scientists prefer a dedicated research program for albedo modification, so it doesn’t “contaminate” basic climate science. U.S. should fund climate engineering research, report concludes 2015-02-10T05:00:00Z In addition, albedo modification introduces secondary effects on the ozone layer, precipitation patterns, terrestrial and marine ecosystems, and human health, with unknown social, political, and economic outcomes. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z One place where that may be the case is the White Mountain National Forest in New Hampshire, where Lutz and Howarth conducted their research, using models to assign values to albedo and carbon capture. Could cutting down some trees help cool the planet? 2013-12-14T22:34:46Z Earlier this year a paper in Proceedings of the National Academy of Sciences reported that declining Arctic albedo between 1979 and 2011 constituted 25% of the heating effect from carbon dioxide over the same time. Dark snow: from the Arctic to the Himalayas, the phenomenon that is accelerating glacier melting 2014-07-05T04:00:00Z The low average lunar albedo seems to be due to a variety of things, from the specifics of rock and ‘soil’ chemistry in a fairly intense radiation environment, to the physical texture of the surface. The Dirtiest Lunar Mystery Of All 2013-08-19T14:45:05.640Z As for albedo modification techniques, the panel says a “deliberative process” should govern how outdoor field studies proceed. U.S. should fund climate engineering research, report concludes 2015-02-10T05:00:00Z Many of the processes most relevant to albedo modification — such as those that control the formation of clouds and aerosols — are among the most difficult components of the climate system to model and monitor. In Geoengineering Study, Science Academy Sees Merit in CO2 Removal, Risk in Reflecting Sunlight 2015-02-10T05:00:00Z The study released yesterday in Nature Climate Change breaks new ground by putting definitive numbers on the albedo effect, using satellite data. Arctic Sea Ice Loss Creates Ripple Effects 2013-08-05T15:15:00.667Z These activities affect a significant amount of land surface globally and change the albedo, carbon and evaporative cycles across the planet. Who Cares About Global Warming? 2013-07-28T18:54:00Z In order to measure what this planet would look like to our eyes, the astronomers measured how much light was reflected from its surface - a property known as albedo. Glass rain may give planet blue hue 2013-07-11T15:23:49Z Shrubs and trees also shade the snowy ground, allowing sunlight to be absorbed rather than reflected into space, creating additional warming via what is termed the albedo effect. Vegetation May Speed Warming of Arctic 2013-04-01T16:15:00.347Z These temperature fluctuations are due to the albedo effect, the warming caused by the color and reflective quality of a landscape. Increased Sugar Cane Growing in Brazil May Affect Regional Climate 2013-03-12T15:45:00.423Z The variables that change over time are the reflectivity of the earth, or albedo, and the concentration of greenhouse gases in the atmosphere. Big Data Not Required: The Benefits Of A Less Complex Model Of Climate Change 2012-10-12T17:20:50Z The change represents a potentially massive reduction in the albedo of the planet, which explains why climate scientists are so troubled by it. Green Blog: Running the Numbers on Antarctic Sea Ice 2012-10-03T17:05:36Z The polar ice cap acts as a giant parasol, reflecting sunlight back into the atmosphere in what is known as the albedo effect. Arctic melt 'like doubling CO2' 2012-09-05T18:20:43Z Other research signals that the albedo effect "causes so much warming that permafrost thaws even despite the cooling from shrubs," he said. Vegetation May Speed Warming of Arctic 2013-04-01T16:15:00.347Z "We've definitely been thinking about it," Bramble said when asked about incorporating localized climate effects like albedo into the standards. Increased Sugar Cane Growing in Brazil May Affect Regional Climate 2013-03-12T15:45:00.423Z This corresponds to the albedo variable in the model. Big Data Not Required: The Benefits Of A Less Complex Model Of Climate Change 2012-10-12T17:20:50Z He finds that the moon’s “albedo” is about 0·0909; or in other words, the moon reflects about one-tenth of the light which falls on it from the sun. Astronomical Curiosities Facts and Fallacies 2012-03-27T02:00:18Z “To combat climate change, there’s no question that we need to increase the earth’s albedo,” or reflectivity, Dr. Gaffin said. Green Blog: In an Urban Roof Contest, White Trumps Black 2012-03-09T23:24:25Z One reason the Arctic is bearing the brunt of climate change lies in a process called ice–albedo feedback. Climate Change: A planet in flux 2012-02-29T18:21:19.490Z These large amounts of sediments decrease surface albedo of the ice, leading to further meltwater generation. Scientist at Work Blog: Ecological Connectivity as Climate Warms 2012-01-20T16:58:32Z So the increasing albedo mechanism needed to move the planet into the next ice age can’t happen — unless humans go extinct. Dot Earth Blog: The Next Ice Age and the Anthropocene 2012-01-08T18:27:53Z The Herschel data demand an extremely high reflectance, or albedo, of greater than 90 percent, indicating that Makemake is extremely icy. Hot and Cold: Dwarf Planet Makemake Could Have Extreme Temperatures Side by Side 2011-10-06T11:45:06.110Z One of the most important right now is the reduction of the Arctic's albedo. Climate Change Effects in Arctic More Extensive than Expected 2011-05-06T16:14:00Z It is difficult to obtain a good determination of the Earth’s albedo, but the most probable estimate puts it as about 0·50, or three times as great as that of the Moon. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z In a 2002 scientific paper, Dr Latham wrote: "... the overall result could be a reduction in cloud droplet concentration, with concomitant reductions in albedo and cloud longevity, ie a warming effect". Climate 'fix' may warm, not cool 2011-04-06T08:48:08Z "The cryospheric albedo feedback is a relatively small player globally, but it's been a surprisingly strong feedback mechanism over the past 30 years," Flanner said. Shrinking Snow and Ice Cover Intensify Global Warming 2011-01-20T16:16:00Z “It’s impossible to fit it with a single albedo,” Müller said. Hot and Cold: Dwarf Planet Makemake Could Have Extreme Temperatures Side by Side 2011-10-06T11:45:06.110Z The team made conservative assumptions when estimating the albedo reduction, Yasunari said, neglecting other potentially important factors. Subcontinental Smut: Is Soot the Culprit Behind Melting Himalayan Glaciers? 2011-01-05T22:15:55.447Z The albedo or reflective index of Jupiter has been put by the late Prof. G. Bond, of Harvard College Observatory, as higher than unity; in other words, that it emits more light than it receives. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z Another study published this year by researchers with the Berkeley lab used global climate models to determine the cooling benefit of increasing the albedo, or reflectivity, of both roofs and roadways in large cities. In a Climate Quest, the Roof as White Knight 2010-07-21T14:46:00Z This change in reflectance contributes to what's called "albedo feedback," one of the main positive feedback mechanisms adding fuel to the planet's warming trend. Shrinking Snow and Ice Cover Intensify Global Warming 2011-01-20T16:16:00Z Tidy profits for some companies fighting the oil spill. albedo, , , , , glaciers, , Occidental Petroleum, , , Peru, , Sahara, Can the River Save the Deltas? On Our Radar: Saharan Sun Power 2010-06-21T15:19:00Z Scientists believe this will increase the whiteness, or albedo, of clouds and increase their ability to reflect more sunlight back into space, reducing global warming. Bill Gates' cloud-whitening trials 'a dangerous experiment' 2010-05-14T09:19:00Z This is now generally regarded as an excessive estimate, but the albedo of the disc as a whole cannot be put lower than 0·72, or about that of white paper. Are the Planets Inhabited? 2011-04-24T02:00:07.733Z A calculation of the planet's albedo—its rate of reflected sunlight—showed that in one large central section there was a dimming out. The Secret of the Ninth Planet Eighty years ago, even the commercial photographers knew about albedo—one of 'em made a picture of a cat, white on white. Zero Data The albedo of Mars is put by Müller at 0·27; his surface, in other words, returns 27 per cent. of the rays striking it. A Popular History of Astronomy During the Nineteenth Century Fourth Edition The telescopes showed Sennech's albedo down to a fraction of normal; that, he supposed, would indicate smoke in the atmosphere. Tulan Terra was eight thousand two hundred miles in diameter, with a fairly clear atmosphere and a varying albedo which indicated clouds in the atmosphere. Islands of Space An albedo equal to that of Mars was assumed as the basis of the calculation. A Popular History of Astronomy During the Nineteenth Century Fourth Edition Zöllner estimated the albedo of Saturn at 0·51, Müller at 0·88, a value impossibly high, considering that the spectrum includes no vestige of original emissions. A Popular History of Astronomy During the Nineteenth Century Fourth Edition |
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