Sentences with phrase «in atmospheric modelling»

Wild, M., 2005: Solar radiation budgets in atmospheric model intercomparisons from a surface perspective.
dresy: Your comments and my own extensive experience in atmospheric modeling are in accord.
Akagi, S. K., R. J. Yokelson, C. Wiedinmyer, M. Alvarado, J. Reid, T. Karl, J. Crounse, and P. Wennberg, 2011: Emission factors for open and domestic biomass burning for use in atmospheric models.
Continued scientific advances in understanding processes and their simulation in atmospheric models are needed to understand how secondary influences will affect ozone.
But it is a reasonable expectation (whether it is always true is a separate question) that if you make a change in the atmospheric model that affects RFP / CS substantially, your overall warming from pre-industrial-to-present in the fully coupled model will change in the same direction.
The dependence of sensitivity on the SST warming pattern, in GCMs at least, implies that even if a valid, strong emergent constraint on ECS in coupled GCMs were found, and there were no shortcomings in the atmospheric models of GCMs that satisfied the constraint, that would be insufficient to constrain real - world ECS.
Shindell is an expert in atmospheric modeling, I gather.
Reality check, my statement about no standardized tests to evaluate codes for dynamical cores in atmospheric models has been misinterpreted.

Not exact matches

Consistency and discrepancy in the atmospheric response to Arctic sea - ice loss across climate models.
Now, to find out how the glaciers formed in the first place, scientists created models that simulated atmospheric circulation on the dwarf planet for the last 50,000 years (a mere 200 orbits around the sun for Pluto).
The CSU researchers created a model that can accurately predict atmospheric river activity in the western U.S. three weeks from now.
In the clouds in her model, atmospheric gas would sometimes condense onto the shimmering dust particles, increasing in size to a few millimeters biIn the clouds in her model, atmospheric gas would sometimes condense onto the shimmering dust particles, increasing in size to a few millimeters biin her model, atmospheric gas would sometimes condense onto the shimmering dust particles, increasing in size to a few millimeters biin size to a few millimeters big.
When Douglas MacMartin of the California Institute of Technology in Pasadena approached the National Science Foundation for support on a modeling effort on [albedo modification], officials told him the work was too theoretical for the engineering division and too applied for the atmospheric science program.
The challenge may arise from the models» inability to adequately represent the atmospheric heating associated with changes in cloud populations.
But advances in the understanding of atmospheric oxygen levels are challenging that idea, explains Sandra Schachat, a paleoentomologist at Stanford University, who led a recent study that modeled the gas's availability during the hexapod gap.
Most notably, the models do not generally react too sensitively to increases in atmospheric carbon dioxide.
Von Issendorff and his colleagues expect their findings will fine - tune models that explain and predict cloud formation and climate, atmospheric chemistry, and the evolution of water - rich objects in outer space, such as fledgling comets.
A crucial reason why the study of freshwater acidification has lagged until now is because determining how atmospheric carbon affects these ecosystems requires complex modeling, and is much less clear than that occurring in oceans, according to study author Linda Weiss, an aquatic ecologist at Ruhr University Bochum in Germany.
The Science study finds that this is most likely because the models underestimate the atmospheric warming in the Arctic that is induced by a given carbon - dioxide emission.
«Using a numerical climate model we found that sulfate reductions over Europe between 1980 and 2005 could explain a significant fraction of the amplified warming in the Arctic region during that period due to changes in long - range transport, atmospheric winds and ocean currents.
Filling in all these details will make it possible to refine the accuracy of atmospheric models and help to assess such things as strategies to mitigate specific air pollution issues, from ozone to particulate matter, or to assess the sources and removal mechanisms of atmospheric components that affect Earth's climate.
But in the big picture, hurricane models adeptly forecasted Irma's ultimate path to the Florida Keys nearly a week before it arrived there, says Brian Tang, an atmospheric scientist at the University at Albany in New York.
Mission leaders were relieved and eager to begin their studies of cloud and haze effects, which «constitute the largest uncertainties in our models of future climate — that's no exaggeration,» says Jens Redemann, an atmospheric scientist at NASA's Ames Research Center in Mountain View, California, and the principal investigator for ObseRvations of Aerosols above CLouds and their IntEractionS (ORACLES).
And by carefully measuring and modeling the resulting changes in atmospheric composition, scientists could improve their estimate of how sensitive Earth's climate is to CO2, said lead author Joyce Penner, a professor of atmospheric science at the University of Michigan whose work focuses on improving global climate models and their ability to model the interplay between clouds and aerosol particles.
Researchers use atmospheric models to simulate this process in the Amazon.
Cooperation is important because research and security in the Arctic region require comprehensive and long - term weather, ice, sea, and atmospheric observations and modelling.
Falchi and colleagues obtained their light pollution estimates by running the Suomi satellite data through an atmospheric model that calculates skyglow at zenith (directly overhead) in a cloud - free sky.
«Which of those is correct at this stage is unknown, but the droughts being driven by atmospheric greenhouse gas concentrations is in line with some of these global circulation models,» Lewis said.
«Advances in global climate models and high quality ocean, atmospheric and land observations are helping us push the frontiers of snowpack prediction.»
Today, better simulation models and instruments and new research into geophysical and atmospheric dynamics are ushering in a new era of natural hazard forecasting.
Computer model finds historical patterns In order to learn that this atmospheric pattern exists in advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepIn order to learn that this atmospheric pattern exists in advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepin advance of heat waves, Teng and her co-authors had to look far back in the history of heat waves — from before weather records were kepin the history of heat waves — from before weather records were kept.
All this modelling work, combined with in situ measurements (oceanographic campaigns recently carried out as part of the AMOP project) help improve our understanding of the interactions between biogeochemistry, atmospheric circulation and oceanic circulation.
They further found that this decline matched the model's predictions, and that more than half the shrinkage was due solely to the reduction in atmospheric chlorine.
After confirming that oxidized organics are involved in the formation and growth of particles under atmospheric conditions, the scientists incorporated their findings into a global particle formation model.
After a painstaking analysis that modeled all known sources of acceleration for Juno, including the minute contributions from sunlight warming the spacecraft, Iess's team found a large north - south asymmetry in Jupiter's gravitational field — a clear sign of material flowing beneath the cloud tops on deep atmospheric winds.
The model's noble - gas ratio predictions were similar to the ratios found in atmospheric data gathered from as far away as Japan and Russia nearly two months after North Korea announced it had conducted an underground explosion in 2013.
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.
The group reached the conclusion after having succeeded in the mathematical reproduction of the planet's current atmospheric conditions, through computer modeling that used a numerical model of the atmosphere developed by the Met Office, the UK's national meteorological service.
Gentine and his team are now exploring ways to model how biosphere - atmosphere interactions may change with a shifting climate, as well as learning more about the drivers of photosynthesis, in order to better understand atmospheric variability.
«Current atmospheric models of exoplanets can not fully explain the subtle differences in color that GPI has revealed.
Now, using sophisticated climate simulations unavailable in the 1980s, two atmospheric scientists recently modeled detonation of 100 Hiroshima - size bombs in a hypothetical war between India and Pakistan.
The team used the data from charcoal in coal to propose that the development of fire systems through this interval was controlled predominantly by the elevated atmospheric oxygen concentration (p (O2)-RRB- that mass balance models predict prevailed.
Goddard's computer models, with input from ocean buoys, atmospheric models, satellite data and other sources, can also simulate what ocean water temperatures could do in the coming months.
Over 100 specialists in solar physics, geomagnetism, climate modelling or atmospheric chemistry got together to explore this topic in a new way.
«Exactly when is model - dependent, but what is clear is that the formation of continental crust naturally leads to two rises in atmospheric oxygen, just as we see in the fossil record,» Lee said.
Their findings, based on output from four global climate models of varying ocean and atmospheric resolution, indicate that ocean temperature in the U.S. Northeast Shelf is projected to warm twice as fast as previously projected and almost three times faster than the global average.
Using a computer model that fused air pollution and atmospheric chemistry data, they estimated what annual average levels of ozone (a key smog ingredient) and fine particulates smaller than 2.5 microns (PM2.5) were in 2010 within 100 - km - by -100-km grid squares across the world.
Scientists finally confirmed this hypothesis in the 1960s when it became possible to develop adequate models of solar atmospheric heating.
Morgan O'Neill, the paper's lead author and a former PhD student in MIT's Department of Earth, Atmospheric and Planetary Sciences (EAPS), says the team's model may eventually be used to gauge atmospheric conditions on planets outside the solar system.
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).
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