Sentences with phrase «of atmospheric convection»

In association with El Niño, the heat redistribution in the ocean creates a major reorganization of atmospheric convection, severely disrupting global weather patterns from Australia to India and from South Africa to Brazil.

This is incorrect because about half of the additional delta eK is a result of atmospheric convection that causes friction within the system and in contact with the earth's surfaces.

«The authors write that «the El Niño - Southern Oscillation (ENSO) is a naturally occurring fluctuation,» whereby «on a timescale of two to seven years, the eastern equatorial Pacific climate varies between anomalously cold (La Niña) and warm (El Niño) conditions,» and that «these swings in temperature are accompanied by changes in the structure of the subsurface ocean, variability in the strength of the equatorial easterly trade winds, shifts in the position of atmospheric convection, and global teleconnection patterns associated with these changes that lead to variations in rainfall and weather patterns in many parts of the world,» which end up affecting «ecosystems, agriculture, freshwater supplies, hurricanes and other severe weather events worldwide.»»

Furthermore, the majority of the Earth's precipitation falls in the tropics and is a direct result of atmospheric convection; it is therefore a key area for improving ESMs representation of the earth system.

Not exact matches

A key giveaway that aerosols were behind the effect was that the lightning was most pronounced at times of the year when powerful atmospheric convection currents form that can carry the aerosol particles high into the sky (Geophysical Research Letters, doi.org/cc7b).

The evaluation of the data show a clear correlation between the sea surface temperatures in the Irminger Sea in summer, the amount of surface freshwater in this region and the atmospheric conditions and onset of convection in the following winter.

«For various periods over the last 60 years, we have been able to combine important processes: atmospheric variability, such as the North Atlantic Oscillation, water and air temperatures, the occurrence of fresh surface water, and the duration of convection,» explains Dr. Marilena Oltmanns from GEOMAR, lead author of the study.

A Columbia Engineering team led by Pierre Gentine, professor of earth and environmental engineering, and Adam Sobel, professor of applied physics and applied mathematics and of earth and environmental sciences, has developed a new approach, opposite to climate models, to correct climate model inaccuracies using a high - resolution atmospheric model that more precisely resolves clouds and convection (precipitation) and parameterizes the feedback between convection and atmospheric circulation.

In the future, Romps plans to look at the distribution of lightning - strike increases around the U.S. and also explore what lightning data can tell climatologists about atmospheric convection.

These convection changes can in turn drive the formation of an atmospheric ridge in the North Pacific, resulting in significant drying over California.

For the past few years, Houze has filled a valued role as a collaborator with PNNL staff scientists, advancing the science of clouds and sharing his legacy of transformative research influencing how meteorologists and climatologists think about atmospheric convection.

Changes in Hadley circulation affects convection and thus atmospheric moisture content and cloud cover which may in turn affect net solar heating as well as the transfer of heat from Earth to space.

Normally, this connection is due to the aforementioned atmospheric convection and rainfall, but during the summer and fall of 2014, when those warm waters should have produced rainfall and pushed El Niño along, the atmosphere remained relatively dry.

Wang, W., and M. Schlesinger, 1999: The dependence on convection parameterization of the tropical intraseasonal oscillation simulated by the UIUC 11 - layer atmospheric GCM.

And energy out mostly by radiation, however, as much as 20 % of escaping energy is simply highly energized atmospheric molecules; which furthers vertical convection all the way out to the inside of Earth's magnetic bottle, and the Van Allen radiation belt.

Sensitivity of atmospheric water vapor content to the parameters of this new representation of convection is also being evaluated through use of the so - called adjoint of the scheme.»

http://www.cpc.ncep.noaa.gov/products/outreach/glossary.shtml Low atmospheric pressure tends to occur over warm water (and high over cold water), partly because of deep convection over the warm water.

Whether the activity of TCs (TC - scale dynamics and cumulus convection together) is determined by the global climatic condition (SST, atmospheric composition and general circulation).

Large scale dust storms change the atmospheric opacity and convection; as always when comparing mean temperatures, the altitude at which the measurement is made matters, but to the extent it is sensible to speak of a mean temperature for Mars, the evidence is for significant cooling from the 1970's, when Viking made measurements, compared to current temperatures.

The point isn't a «perpetual increase in atmospheric pressure» — that's a misnomer — if you consider the MASS of the atmosphere that is continuously «pumped» from cold air to hot air to cold air again, high up in the atmosphere — that creates «potential energy» from the kinetic energy of the convection — adiabatic expansion of the atmosphere is the result — the adiabatic compression occurs on the return trip of the previously warmed (from radiative energy) air as it completes the «cycle» as it comes back down!

Incidentally, the experiments of Tyndall and Fourier were done in closed containers to block convection and therefore do not represent open atmospheric conditions whatsoever.

That, combined with the change in location of the convection, cause drastic changes in global atmospheric circulation patterns.

Of course, this doesn't mean that much, since the «closed» system will not be open to the vacuum of space, and is not subject to other atmospheric processes like convection and to cloud and precipitation feedbacks, all of which render the experiment fairly meaninglesOf course, this doesn't mean that much, since the «closed» system will not be open to the vacuum of space, and is not subject to other atmospheric processes like convection and to cloud and precipitation feedbacks, all of which render the experiment fairly meaninglesof space, and is not subject to other atmospheric processes like convection and to cloud and precipitation feedbacks, all of which render the experiment fairly meaninglesof which render the experiment fairly meaningless.

«Our finding that convective features change drastically at resolutions of 2 kilometers or more opens up new avenues for research into the interactions between convection and global atmospheric circulation that would have been invisible at coarser resolutions.»

Deep moist atmospheric convection controls the development of major weather systems like hurricanes, drives the global transport of energy within the climate system and strongly influences the uncertainty of projected climate change.

By Amber Bentley (Aged 11) In just 16 pages, this wonderful book covers the structure of the atmosphere, solar radiation, the water cycle, clouds, fronts, convection, air pressure, air masses, the global atmospheric circulation, making weather observations, forecasting, synoptic charts, hurricanes, regional climate, palaeoclimates and anthropogenic climate change.

Further analysis reveals that overlying surface evaporation and atmospheric convection are modulated as a result of these forced changes to the temperature of the upper coastal Atlantic Ocean.

The primary purpose of this web site is to make people more aware of the enormous energy production potential of atmospheric upward heat convection.

The intertropical convergence zone is distinguished by a wide band of cumulus and cumulonimbus clouds that are created by dynamic atmospheric lifting due to convergence and convection.

14), addresses the mechanisms of atmospheric heat transfer not only via radiation but also by convection, which is not mentioned once in the IPCC's scientific reports (Ref.

A comparison of the radiative equilibrium temperatures with the observed temperatures has indicated the extent to which the other atmospheric processes, such as convection, large - scale circulation, and condensation processes, influence the thermal energy balance of the system.

The strength of the vertical movement is controlled by the same factors that control atmospheric convection elsewhere.

I'd have to see some sort of computational model based on good atmospheric convection physics that pops up with the good old DALR to the same old top of troposphere even if there is no actual loss of heat up there.

Bernie (05:54:00): «The strength of the vertical movement is controlled by the same factors that control atmospheric convection elsewhere.

I'll mention just one (of many) negative feedbacks in the atmospheric thermodynamic system — convection.

(Lapse rate based primarily on atmospheric density) Yes, of couse convection, evaporation, and relative conduction spreads would continuesly conduct said atmosphere.

The real GHE is the reduction of surface emissivity, also possibly coupled convection as atmospheric GHG thermal - emission Poynting Vectors annihilate the UP PVs in that wavelength interval.

But in a given model you can often find ways of altering the model's climate sensitivity through the sub-grid convection and cloud schemes that affect cloud feedback, but you have to tread carefully because the cloud simulation exerts a powerful control on the atmospheric circulation, top - of - atmosphere (TOA) and surface radiative flux patterns, the tropical precipitation distribution, etc..

Thirty years later, the relevance of this study has been realized in the development of stochastic approaches to represent cumulus convection and its upscale energy transports, and in the emerging efforts to resolve these multi-scale processes in atmospheric simulations at the cloud system - resolving scale (approx. 1 km).

The role of convection and the subsequent condensation out of water vapour into clouds and then rainfall is currently incapable of quantification as a means of slowing or offsetting any atmospheric greenhouse effect but it certainly does those things.

In the future, Romps plans to look at the distribution of lightning - strike increases around the U.S. and also explore what lightning data can tell climatologists about atmospheric convection.

All that is needed is to add heat carried upwards past the denser atmosphere (and most CO2) by convection and the latent heat from water changing state (the majority of heat transport to the tropopause), the albedo effects of clouds, the inability of long wave «downwelling» (the blue balls) to warm water that makes up 2 / 3rds of the Earth's surface, and that due to huge differences in enthalpy dry air takes far less energy to warm than humid air so temperature is not a measure of atmospheric heat content.

The atmospheric vortex engine exploits the natural energy content of the vortex produced during upward heat convection in the atmosphere.

However, the availability of non-radiative means for vertical transport of energy, including small - scale convection and large - scale atmospheric motions, must be accounted for, as is done in our atmospheric general circulation model.

The physics that must be included to investigate the moist greenhouse is principally: (i) accurate radiation incorporating the spectral variation of gaseous absorption in both the solar radiation and thermal emission spectral regions, (ii) atmospheric dynamics and convection with no specifications favouring artificial atmospheric boundaries, such as between a troposphere and stratosphere, (iii) realistic water vapour physics, including its effect on atmospheric mass and surface pressure, and (iv) cloud properties that respond realistically to climate change.

Process - based studies have focused on understanding the role of the land surface on climate, with research looking into the regional impact of historical or hypothetical (future scenario) land - use change on climate, as well as understanding diurnal - scale relationships between surface fluxes of heat and moisture and subsequent atmospheric processes such as convection and the generation of precipitation.

How can one arrive at a level of certainty exceeding 90 % about any aspect of the Earth's climate whilst attributing a value of zero to all the main (and obvious) factors namely the sun, the oceans, evaporation and condensation, clouds and atmospheric convection.

The IPCC summary is deeply flawed as a scientific document and as I have explained in other recent articles it appears impossible for increased levels of atmospheric CO2 at the puny levels caused by mankind to affect the characteristics of the atmosphere enough to significantly enhance the greenhouse effect and even if it could do so then any such effect would be quickly neutralised by the primary solar / oceanic driver and the oceans acting in conjunction with evaporation, condensation and atmospheric convection (which includes clouds and rain).

To my way of thinking «atmospheric heat can only be trapped, or slowed down, by a reduction in convection.

Answer obvious, and pertains only to anvils in frigid baths (or similar concepts), but it is completely irrelevant to the discussion at hand: it has NO relationship to atmospheric physics, due to «other factors,» such as convection and evaporation / condensation of water.