Sentences with phrase «of atmospheric chemists»

Good news in Science from an international team of atmospheric chemists, including researchers from NOAA and the Dutch universities of Wageningen and Utrecht.

While models contain a lot of physics, they don't contain many small - scale processes that more specialised groups (of atmospheric chemists, or coastal oceanographers for instance) might worry about a lot.

An international group of atmospheric chemists and physicist could now have solved another piece in the climate puzzle by means of laboratory experiments and global model simulations.

«This is a cutting - edge study in the field of cloud - aerosol - precipitation interactions that includes an interdisciplinary group of atmospheric chemists and meteorologists,» he said.

Not exact matches

Co-authored by David Catling, an atmospheric chemist at the University of Washington in Seattle, the study peers deep into our planet's history to devise a novel recipe for finding single - celled life on faraway worlds in the not - too - distant future.

To see if these regulations affected bromine concentrations, atmospheric chemist Stephen Montzka of the National Oceanic and Atmospheric Administration in Boulder, Colorado, and colleagues analyzed air samples taken several times each month from 10 land - based sites across the globe between 1995 and 2002.

Natural sources of this substance are small, says Ryan Hossaini, an atmospheric chemist at Lancaster University in the United Kingdom.

In the back of the plane, atmospheric chemist Kimberly Prather wears headphones to muffle the roar of the propellers.

Although chlorine levels are falling, thanks to agreements that banned chlorofluorocarbons, levels of bromine — which is 45 times more effective at zapping ozone — are still rising, says atmospheric chemist Dale Hurst of the National Oceanic and Atmospheric Administration in Boulder, Colorado.

Part of the challenge with many these volatile - emitting products is that they're specifically designed to evaporate as part of their job, says study coauthor Jessica Gilman, an atmospheric chemist at the National Oceanic and Atmospheric Administration in Boulder.

But James Ferris, a prebiotic chemist at Rensselaer Polytechnic Institute in Troy, N.Y., doubts that atmospheric electricity could have been the only source of organic molecules.

«It's a big surprise,» says Susan Solomon, an atmospheric chemist at the Massachusetts Institute of Technology in Cambridge.

This paper «is timely and an important step forward in understanding changes in the global methane budget,» says Isobel Simpson, an atmospheric chemist at the University of California, Irvine, who was not involved in the study.

«OH tends to get ignored a bit in discussions even in the science community,» says Michael Newland, an atmospheric chemist who recently completed a postdoc at the University of East Anglia in Norwich, U.K.

«Results like this are tantalizing,» says atmospheric chemist Daniel Jacob of Harvard University.

However, atmospheric chemist James Kasting of Pennsylvania State University in University Park says most models still point to a toasty primitive Earth engulfed by thick greenhouse gases.

Robert Watson, an atmospheric chemist at the University of East Anglia in the United Kindgdom, is being honored for his studies of the ozone hole and work toward an international agreement to ban the use of the chemicals causing ozone depletion; he later chaired the Intergovernmental Panel on Climate Change.

Indeed, atmospheric chemists have estimated that the combined warming effect of these trace gases will soon equal or exceed the effect from carbon dioxide.

The inset map is a computer model of Asian mercury emissions across the Pacific Ocean at an altitude of 20,000 feet in April 2004, while atmospheric chemist Dan Jaffe was picking up significant mercury readings on Mount Bachelor (the highest concentrations are in red).

Biologists working with leaf molds and other fungi in the lab had noticed this, and atmospheric chemists had noticed that there seemed to be a lot of potassium floating above the Amazon in the wet season.

Most of the time, atmospheric chemists can see the carbon clumping taking place; when the microscopic bits reach a certain size, they are able to attract and hold water.

It is a statement worthy of Gertrude Stein, but University of Washington atmospheric chemist Dan Jaffe says it with conviction: None of the contamination we pump into the air just disappears.

«First Best Guess» Wiedinmyer pored through existing data and inventories and consulted one of the few people already investigating the phenomenon, Bob Yokelson, an atmospheric chemist at the University of Montana in Missoula, who had traveled widely to developing areas and was familiar with the trash burning around homes and villages.

Detlev Helmig, an atmospheric chemist and group leader at the Institute of Arctic and Alpine Research laboratory at the University of Colorado, Boulder, has spent 10 years studying the strange ups and downs of gases in the atmosphere.

The production of the gas is nearly doubling every year, says Michael Prather, atmospheric chemist at University of California, Irvine, who had predicted earlier this year that emissions would likely exceed the industry's claim that only 2 percent of the gas is released into the atmosphere.

Meredith Hastings, an atmospheric chemist at Brown University and co-principal investigator on a $ 1.1 million National Science Foundation grant aimed at curbing sexual harassment in the geosciences, says she is «excited that [Boston] University is stepping forward and taking some type of action — that they were able to come to the conclusion that he has harassed her.»

Those data, along with the new work, will help scientists devise more accurate climate models, says atmospheric chemist Mattias Hallquist of the University of Gothenburg in Sweden.

Together, they confirm estimates from atmospheric chemists that natural tropical forests absorb about a fifth of our carbon emissions.

An international team led by atmospheric chemist Qiang Zhang of Tsinghua University in Beijing looked at emissions data across 13 global regions for 2007, the last year comprehensive information was available.

The finding could have broad impacts on our understanding of how the stratosphere works, says James Anderson, an atmospheric chemist at Harvard University.

«This is the only long - term data set with regular measurements of ozone - destroying compounds in the stratosphere,» says atmospheric chemist Darin Toohey of the University of California, Irvine.

But some space scientists have long made use of arXiv, and a subset of the earth scientists who published in the journals of the European Geosciences Union (EGU) have already become accustomed to such openness, as EGU has posted studies online prior to review for more than 15 years, says Ulrich Pöschl, an atmospheric chemist at the Max Planck Institute for Chemistry in Mainz, Germany, who helped found the journals.

The concept of the «Anthropocene» was originally suggested by Paul Crutzen, a Nobel Prize winning atmospheric chemist who is also part of the «Anthropocene Working Group,» in the year 2000.

In the second set of studies, environmental chemists will seek to characterize the components of thirdhand smoke, including investigating the differences between atmospheric particulate matter versus that in tobacco smoke.

This comes from a large group of the world's top atmospheric chemists.

Analyzing such systems, whether they are on the surface of a catalyst, a microbial community, or atmospheric aerosols, and understanding their impact requires tools that can accurately identify and quantify hundreds of molecules,» said Dr. Julia Laskin, a PNNL chemist, who has been advancing the frontiers of the Nanospray Desorption Electrospray Ionization Mass Spectrometry, nicknamed nano - DESI, for the last 3 years.

Soot was the impact's most lethal symptom, argued paleontologist Kunio Kaiho, of Tohoku University, and Naga Oshima, an atmospheric chemist at Japan's Meteorological Research Institute.

... This brings up the nightmarish thought that if the chemical industry had developed organobromine compounds instead of the CFCs — or alternatively, if chlorine chemistry would have run more like that of bromine — then without any preparedness, we would have been faced with a catastrophic ozone hole everywhere and at all seasons during the 1970s, probably before the atmospheric chemists had developed the necessary knowledge to identify the problem and the appropriate techniques for the necessary critical measurements.

I spent a few minutes Wednesday with F. Sherwood Rowland, the atmospheric chemist from the University of California, Irvine, who shared a Nobel Prize for his work revealing the threat to the ozone layer from CFC's and similar synthetic chemicals.

Physical chemistry is a combination of chemistry and physics, it is fine that you derived the equation, but it relates to thermodynamics just the same; chemists make those lasers work, those DVD's play, and I have taken calculus physics, modern physics, (multi variable calculus physics) which means technically I too have a degree in physics, but my focus has been chemistry, biology, and I took a few graduate courses dealing with meteorology, ocean dynamics, geology, atmospheric science and my undergraduate courses were filled with earth science related material and after all the math needed for Pchem engineering mathematics is not difficult nor is graduate physics:) so the derivation you just made is discussed in math classes before, even calculus one, so I am not sure what you are trying to prove.

I'd like to think he's read our stories on such climate engineering options, including one last year in our Energy Challenge series by Bill Broad (with some help from me) in which the president of the National Academy of Sciences, the atmospheric chemist Ralph Cicerone, endorsed the need to aggressively study such options, even as the world works to limit emissions.

In 1896 Swedish chemist and Nobel laureate Svante Arrhenius used Langley's bolometer to measure the heat from the Moon at various altitudes above the horizon in order to estimate the dependence of atmospheric heat trapping on amount of water vapor and CO2 along the line of sight to the Moon, a much longer path near the horizon than at 45 degrees.

The importance of this distinction was made clear in a recent assessment led by atmospheric chemist Drew Shindell of NASA's Goddard Institute for Space Studies [pdf].

«What's really been exciting to me about this last 10 - year period is that it has made people think about decadal variability much more carefully than they probably have before,» said Susan Solomon, an atmospheric chemist and former lead author of the United Nations» climate change report, during a recent visit to MIT.

I'm a chemist, not a physicist or atmospheric scientist, so my interest was mainly in the thermodynamics of atmospheric science.

«We definitely don't think that we're ready to say this is something worth doing,» said atmospheric chemist Lynn Russell of the University of California, San Diego, a lead author on one of the report's volumes.

The good news is that without the Montreal Protocol things would have been a great deal worse, said Martyn Chipperfield, an atmospheric chemist at the University of Leeds.

«Growing quantities of DCM are leaking into the stratosphere, where it is exceptionally effective in destroying the ozone,» said David Rowley, an atmospheric chemist at the University College London, who was not involved in the research.

In the past six years, funding for part of the network — the collection of air samples in flasks — has not kept pace with cost increases, said Ed Dlugokencky, an atmospheric chemist with NOAA's Earth Sciences Research Laboratory in Boulder, Colo..

«We were underestimating warming via black carbon by a factor of two,» says Patricia Quinn, an atmospheric chemist who contributed to the study.