Sentences with phrase «simulated by current models»

Not exact matches

In a recent study, a team of researchers from the University of Sydney's School of Geosciences has designed a new model that simulates sediment transport from mountains to coasts, reworking of marine sediments by wave - induced currents, and development of coral reefs.

Noting that the timing of KD outbreaks in Japan coincides with certain wind patterns from Asia, climate scientist Xavier Rodó, PhD, and colleagues at the Catalan Institution for Research and Advanced Studies and the Catalan Institute of Climate Sciences, both in Barcelona, used computer models to simulate air currents and airborne particle transport for all days since 1977 with high numbers of KD cases in Japan, based on data compiled by Yoshikazu Nakamura, MD, and colleagues at Jichi Medical University in Japan.

By using climate models to simulate what air pollution was like in 1850 and 2000, Jason West at the University of North Carolina at Chapel Hill and his colleagues have estimated its effect on current death rates.

The first model, called ECCO - 2, simulates the movement of particles propelled by surface currents, projecting their motion up to 20 years into the future.

The two maps below, produced for the study by the Geophysical Fluid Dynamics Laboratory at Princeton, are based on a climate model comparing the production of strong hurricanes in conditions mimicking the current climate (basically, average climate conditions from 1980 to 2006) with hurricane production in conditions simulating those projected for the final two decades of the century.

Adapted for Australian oceans, the model simulates the effect of climate in the 2060s on temperature and currents in the warm pool, a tuna habitat defined by warmer surface water.

If the models can not even accurately simulate current climate statistics when they are not constrained by real world data, the expense to run them to produce detailed spatial maps is not worthwhile.

The latter result shows that natural internal variability, as simulated by current climate models, is a highly unlikely explanation for the observed lower tropospheric warming over the satellite era»

González - Rouco et al (2011), Medieval Climate Anomaly To Little Ice Age Transition As Simulated By Current Climate Models.

In most cases, these range from about 2 to 4.5 C per doubled CO2 within the context of our current climate — with a most likely value between 2 and 3 C. On the other hand, chapter 9 describes attempts ranging far back into paleoclimatology to relate forcings to temperature change, sometimes directly (with all the attendant uncertainties), and more often by adjusting model parameters to determine the climate sensitivity ranges that allow the models to best simulate data from the past — e.g., the Last Glacial Maximum (LGM).

Second, nearly every impact of importance is driven by what is liable to happen to the climate on the regional to local scale, but it is well known that current global - scale models have limited ability to simulate climate effects as this degree of spatial resolution.

Of course, these posterior ECS estimates are still conditional on the range of ECS simulated by current climate models.

The authors of the study calculated the health effects for current and future levels of this excess diesel NOx by running a global atmospheric chemistry model that simulates the distribution of PM2.5 and O3.

None of these could have been caused by an increase in atmospheric CO2, Model projections of warming during recent decades have greatly exceeded what has been observed, The modelling community has openly acknowledged that the ability of existing models to simulate past climates is due to numerous arbitrary tuning adjustments, Observations show no statistically valid trends in flooding or drought, and no meaningful acceleration whatsoever of pre-existing long term sea level rise (about 6 inches per century) worldwide, Current carbon dioxide levels, around 400 parts per million are still very small compared to the averages over geological history, when thousands of parts per million prevailed, and when life flourished on land and in the oceans.