Sentences with phrase «using weather models»

The most striking thing to me about these seemingly divergent runs is that (in the absence of a code error) it blows a very large hole in the ideas used to justify using weather models for climate.

That is certainly true now, because we are using weather models to try to predict climate.

Forecasting — uses weather models (i.e., Doppler radar) to predict wind speeds and patterns at various altitudes.

In short, it is formally true that climate modeling «does not use weather models».

I have used weather model output extensively for forecasting weather and air quality and it is amazing how well our modern weather models can forecast the weather for several days compared to what I saw in college days in the early 1970's.

The work was discussed (3) by Dr Kip Hansen, who made the point that the results illustrate well the original finding by Edward Lorenz in the 1960s using a weather model on an early computer: «Two states differing by imperceptible amounts may eventually evolve into two considerably different states.

There is some evidence that Hanson's original proposal to use weather models for climate met some strong skepticism when reviewed.

Not exact matches

Benjamin «Benjy» Firester, 18, of New York City, won the top award of $ 250,000 for developing a mathematical model that uses disease data to predict how weather patterns could spread spores of late blight fungus, which caused the Irish Potato Famine.

Shelby signaled potential increased spending for NOAA's satellite programs used to prepare weather prediction models and advance weather forecasting capabilities.

Pacella, who was lead author on the study, used the detailed data he collected to create a model to estimate the daily carbonate chemistry weather during the summer dry season back to the year 1765, and also projected conditions ahead to 2100 altering the amount of anthropogenic carbon in the system.

To find out more about how meteorologists use forecasting models to get ahead of Mother Nature as well as the limitations of this technology, Scientific American spoke with Thomas Else, chief meteorologist and director of meteorological services and computer programming for Hackettstown, N.J. - based weather forecasting consulting firm Weather Works LLC.

The authors speak of new, higher - resolution weather models that use horizontal grids.

Using a 3D atmospheric model, the researchers separated the effect of the chemicals from those of weather and volcanic emissions, which can also destroy ozone.

They also used a physically based computer model of the hydrologic cycle, which takes daily weather observations and computes the snow accumulation, melting, and runoff to estimate the total snowpack in the western U.S.

Now Dorian Abbot and Raymond Pierrehumbert of the University of Chicago have used climate models to study how dust from volcanoes and the weathering of rocks would affect the thaw.

The military uses the microwave information to detect ocean wind speeds to feed into weather models, among other uses, but the data happen to be nearly perfect for sensing sea ice, says Walt Meier, a sea - ice specialist with the NSIDC.

When the weather - based model developed at Rothamsted Research was used to predict how climate change may affect the wheat crops, it was predicted that wheat flowering dates will generally be earlier and the incidence of the ear blight disease on the wheat crops will substantially increase.

Although meteorologists now rely heavily on computer models (numerical weather prediction), it is still relatively common to use techniques and conceptual models that were developed before computers were powerful enough to make predictions accurately or efficiently.

This weather - based model was then used to predict the impact on severity of the disease of future weather scenarios for the period from 2020 to 2050.

To see whether this increase in crops has influenced the region's unusual weather, researchers at the Massachusetts Institute of Technology in Cambridge used computers to model five different 30 - year climate simulations, based on data from 1982 to 2011.

Doug Smith at the UK Met Office fed key data such as ocean temperatures, air pressure and wind speeds for every year from 1960 to 1995 into DePreSys, a model already used to predict weather a decade ahead.

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.

One day, oceanographers hope Spray and other gliders will be able to roam the oceans at will, providing an almost limitless supply of data that could be used to build more sophisticated climate models and develop better weather forecasts.

Bocinsky and d'Alpoim Guedes are using the modeling technique to identify little - used or in some cases completely forgotten crops that could be useful in areas where warmer weather, drought and disease impact food supply.

This model is widely used by both UK and international groups for research into ocean circulation, climate and marine ecosystems, and operationally as part of the UK Met Office's weather forecasting.

The Scripps Institution of Oceanography in San Diego and Columbia University's Lamont - Doherty Earth Observatory in Palisades, New York, announced today the establishment of a center, the International Research Institute (IRI), that will use cutting - edge climate models to forecast long - term weather changes.

«Consequently, global «water vapor winds» are estimated from the movement of these features and used in numerical weather models to improve long - range forecasts,» Chesters said.

Using weather and sea data from the time of the sinking, along with a new theoretical model, a Georgia Institute of Technology researcher has calculated that there was as much as a one - in - 130 chance — over a period of time and area — that a rogue wave 46 feet high (14 meters) could have occurred during the hurricane.

«We are actually the first ones to use data assimilation models in studying mantle deformation, in an approach similar to weather forecasting,» Liu said.

Scientists conducted 1,000 model simulations using future weather variables to predict future reproductive parameters for this species.

«Most crop yield simulation models currently in use are not yet suitable for the impact assessment of the various adverse weather conditions or extreme events.

Their data will be used in computer models to improve weather forecasts, including hurricane tracks and intensities, severe thunderstorms and floods.

And again, does Freeman Dyson, assuming he is willing to get on an airplane even though models have been used to test the performance of the airplane, assuming he does and he knows he's going somewhere where they've predicted, where weather models have predicted rainfall for the next seven days, does he not pack his umbrella because he doesn't believe the models?

The team used DayCent, an ecosystem modeling tool that tracks the carbon cycle, plant growth, and how growth responds to weather, climate and other factors at a local scale.

EWeLiNE cannnot simply use the NCAR system because weather models and the algorithms that convert weather predictions into power forecasts differ between the United States and Germany.

He says he's confident that the day will come when wildland fires will be forecast using computer models just as accurately as we now can forecast the next day's weather.

«As we build up a big archive — warm years, cold years, wet years and dry years — we can use the data to develop models of how weather and phenology are related,» he says.

Trenberth says, and some scientists agree, that attribution studies that use climate models do not work well for weather events that are local and dynamic — a flash in the pan.

The researchers examined factors like topography, weather conditions and fire history and used statistical models to determine what influenced fire severity.

They use «ensemble» modeling — which takes an average of many different weather models.

Researchers have now used a computer model to assess the possible effects of smoke on the region's weather that day.

The scientific team used field disease surveys from the International Maize and Wheat Improvement Centre and weather data from the UK Met Office as key input for the modelling framework.

To avoid costly problems in the future, ICA and other groups recommend a variety of policy improvements, including changing land use regulations in fire - and flood - prone areas, strengthening building codes, and improving weather warning and modelling services.

Hui cautions that the helistroke service is not always the right or best choice: weather restrictions, specialist availability and transportation costs limit the use of the model.

The team used a worldwide climate model that incorporated normal month - to - month variations in sea surface temperatures and sea ice coverage, among other climate factors, to simulate 12,000 years» worth of weather.

For my research in climate science, I use a satellite to measure physical and optical properties of clouds with the view to further improve weather and climate models.

To project that trend forward, the team then used models recently developed to analyze Antarctic ice sheet collapse, plus large global data sets to tailor specific Atlantic tropical cyclone data and create «synthetic» storms to simulate future weather patterns.

Researchers at Harvard University, the University of Utah and the National Center for Atmospheric Research say they were able to accurately measure carbon dioxide emitted in Salt Lake City using ground stations, weather and land - use data, and a computer model.

In the past several years, researchers have used AI systems to help them to rank climate models, spot cyclones and other extreme weather events — in both real and modelled climate data — and identify new climate patterns.

In Finland, upland soil carbon stock changes are quantified using the Yasso07 soil model, in which variations in weather conditions can be taken into account.