Sentences with phrase «atmospheric flow»

There are external triggers at thresholds and an immense and complex response in planetary ocean and atmospheric flow fields.
O'Gorman, P. A., and T. Schneider, 2007: Recovery of atmospheric flow statistics in a general circulation model without nonlinear eddy - eddy interactions.
With the aid of an innovative unmanned aerial system (UAS), referred to as an Aerosonde, an intensive late winter / early spring observing period will be conducted that will quantify the surface energy budget components over the polynya and adjacent sea ice and describe the forcing for and near surface properties of regional mesoscale atmospheric flows responsible for polynya formation.
Since coming to PNNL, he has led or been significantly involved in studies of effects of surface heterogeneity on boundary layer structure, of mesoscale atmospheric flows induced or modulated by complex terrain, of the simulation of dust emission by wind erosion, and of the capabilities of a variety of atmospheric instruments — including a mass spectrometer and wind profiling radar — for measuring atmospheric turbulence.
Commentary The new Potsdam Institute paper gives us a mathematical description of exactly how global warming may be triggering observed fundamental changes in large - scale atmospheric flow patterns, resulting in the observed increase in unusually intense and long - lasting periods of extreme weather over the past eleven years.
Improved competencies on atmospheric flow, together with the guidelines and best practices for the use of data, promises to become a key tool with reduced overall uncertainties for determining wind conditions.
«Early results indicate that some of it comes from increased moisture in a warmer atmosphere but some of also arises from increased probability of storms stalling because of weak atmospheric flow.
However unexpected it may sound, this question prompted physicists at the Laboratoire Ondes et Matière d'Aquitaine (CNRS / université de Bordeaux) to perform a highly novel experiment: they used soap bubbles to model atmospheric flow.
Like Facebook postings or tweets that get shared over and over again, temperature and humidity get transported from one place to another by atmospheric flows, such as winds.
The study will be published this week in the Proceedings of the National Academy of Sciences and suggests that man - made climate change repeatedly disturbs the patterns of atmospheric flow around the globe's Northern hemisphere through a subtle resonance mechanism.
Still, Stanford's Diffenbaugh agreed that before long — if they haven't begun already — scientists will be looking very closely at the Harvey event, based on its thermodynamics (storm intensity and rainfall) and its «dynamics,» or the broader atmospheric flow factors that led the storm to stall.
Any asymmetry in the gravity field is attributed to differential rotation and deep atmospheric flows.
Employing works in different media, it especially involves a selection of cyanotypes, which like the cyclical atmospheric flow of water vapor, depend on solar radiation for their creation.
But then when the speaker got to the final conclusion, it was essentially a tiny correlation between extreme rainfall events in a few very particular places with particular large scale atmospheric flows upstream.
At the same time — research is showing a solar UV / ozone chemistry influence in modulating atmospheric flows and polar pressure fields.
North - south - oriented mountain barriers, such as the Rockies and the Andes, and large massifs, such as the Plateau of Tibet, also influence atmospheric flow.
The answers will depend on which factors — such as atmospheric flow, rainfall anomalies, condition of the ground surface, or sea surface temperature — are more likely to cause heat waves in specific regions.
The Potsdam Institute's research lists sixteen July and August periods since 1980 that have had extreme atmospheric flow patterns due to quasiresonance.
My subfield of atmospheric and oceanic sciences is large - scale atmospheric dynamics — basically the fluid mechanics of atmospheric flows with horizontal scales of hundreds to thousands of kilometers (on Earth and Mars, at least).
But in 1904 another physicist, the Norwegian Vilhelm Bjerknes, had put forth the idea that his «primitive equations» — a set of differential equations providing for a reasonable mathematical description atmospheric flow — could provide the foundation for numerically - based weather prediction methods that could potentially be much more accurate than existing methods.
With the aid of an innovative uninhabited aerial vehicle (UAV), referred to as an Aerosonde, an intensive late winter / early spring observing period will be conducted that will quantify the surface energy budget components over the polynya and adjacent sea ice, describe the forcing for and near surface properties of regional mesoscale atmospheric flows responsible for polynya formation, and document the oceanic response to these flows at high vertical and temporal resolution.
Atmospheric science professors Nate Brunsell and David Mechem in KU's Department of Geography are co-authors of a new study just published in the Proceedings of the National Academy of Sciences by an international research group that evaluated the effects of large wind farms on atmospheric flow and its implications for how much renewable energy the turbines can generate.
Francis argued that the warming of the Arctic, at a much faster pace than the mid-latitudes, is slowing the jet stream and prompting extreme weather events when there's weak atmospheric flow.
Deser et al. imply that information about the future regional climate is more blurred than previously anticipated because of large - scale atmospheric flow responsible for variations in regional climates.
The researchers carried out simulations of flow on soap bubbles, reproducing the curvature of the atmosphere and approximating as closely as possible a simple model of atmospheric flow.
To investigate if anything limits their size, Bruno Andreotti at the Denis Diderot University, Paris, and colleagues calculated what the atmospheric flow looks like around giant dunes.
International trade in goods and services has a bigger impact on shifting the health burden of air pollution than atmospheric flows, a new study finds.
Our work is a «downscaling» study, in which we first simulate past hurricane seasons, using as input observed sea surface temperatures (SSTs), the observed state of the atmosphere at the boundaries of our Atlantic domain, as well as the largest scales in the atmospheric flow over the Atlantic.
The atmospheric flow will also have an influence, as strong vertical wind shear can inhibit cyclogenesis (spawning of cyclones).
Conversely, due to well - researched upper - atmospheric flow (e.g. vertical shear) configurations favorable to Atlantic hurricane development and intensification, La Nina falls tend to favor very active seasons in the Atlantic (El Nino years are the converse, with must less activity, as forecast by Gray and NOAA for 2009).
Ait - Chaalal, F., T. Schneider, B. Meyer, and B. Marston, 2016: Cumulant expansions for atmospheric flows.
Outside of thunderstorms the atmospheric flow is laminar and moisture mixes very slowly.
To first order, observations of atmosphere / ocean interaction in the context of the annular modes are consistent with the passive response of the ocean to changes in the atmospheric flow.
Little can be determined from these short term records other than that there are large natural variations doe to variability in ocean and atmospheric flows — and thus the energy budget of the planet.
There are large satellite observed changes in the energy dynamic of the planet from changing patterns in ocean and atmospheric flows — and the aperiodic changes in the Pacific are a big part of it.
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