Sentences with phrase «such as positive feedback»

This is the result of polar amplification - warming at the tropics is less than warming at the poles due to various effects such as positive feedback from ice albedo changes.

Not exact matches

Last year I was giving stuff out to my family and friends such as my Christmas Chai Granola and the feedback was very positive....

Youthsport officials tell me that such positive feedback, rare as it oftenis, goes a long way in motivating them to stick with their volunteerwork and keeps them going through the bad times.

When my father praises my physical appearance, it feels unhealthy to me, as if he's telling me that I shouldn't feel good about myself if I don't receive such positive feedback from him.

«Firms may, therefore, benefit from a better understanding of when and how hormones assert their influence — such as through exceptionally positive feedback cycles that are unsupported by fundamentals or technical indicators,» says Nadler.

The theory of dangerous climate change is based not just on carbon dioxide warming but on positive and negative feedback effects from water vapor and phenomena such as clouds and airborne aerosols from coal burning.

The effect of these small orbital changes was amplified by positive feedbacks, such as changes in greenhouse gas levels.

However, endocytic waves may be initiated by clathrin through a positive feedback mechanism between clathrin and downstream proteins which includes actin regulating proteins as well as membrane proteins such as PIP3.

A relatively fixed factor of production such as land (today we would include all natural resources) can not produce positive feedback for exponential growth.

Self - organized vegetation patterns are widespread in arid lands and elsewhere, and Rietkerk et al. [11]--[12] as well as Couteron and Lejeune [13]--[15] proposed that such patterns are the result of nearby positive and distant negative feedbacks created by plants and physical processes occurring at different scales and intensities.

Mature Singles Agency started as a personalized matchmaking service that expanded into an online mature dating site after receiving such positive feedback from clients.

They are given transcripts of their lesson, which are coded against a rubric to produce a dashboard view of how they performed in certain key areas — such as time spent on teacher talk, the types of questioning used, and incidences of positive behaviour management — and a detailed feedback report.

The staff survey that follows is one of the few that receives overwhelmingly positive feedback with responses such as «Thank you for allowing us the time to focus on what we need,» «Thank you for allowing us to share and collaborate,» and «Thank you for giving us choice.»

The game has been released on famous consoles gadget such as Xbox 360 and has had a positive feedback.

It is always a pleasure to receive positive feedback such as this.

It is always a pleasure to receive positive feedback regarding your visit and our popular central location close to all the local attractions, such as the Colston Hall.

Whilst we would not normally feature a claim such as the «most luxurious train in the world», our long and special association with Rovos Rail and the positive feedback from our clients over the years has emboldened us to print this claim.

During pre-production, Gearbox spent time looking at fan and press feedback on the original game, which resulted in some very real and positive changes to the sequel such as the new mini-map on the HUD.

«With such strong sales momentum and positive feedback from gamers, Watch Dogs has positioned itself as the must - have game of the moment» said Geoffroy Sardin, senior vice president of sales and marketing, Ubisoft.

Ubisoft's vide president in sales and marketing, Tony Key, stated: «With such strong sales momentum and positive feedback from gamers, Watch Dogs has positioned itself as -LSB-...]

I am interested in the lags in the climate system and to see how the limit cycles may respond to minor amounts of positive feedback, such as that due to CO2 outgassing with temperature.

The non linear nature of forcing is related more to positive feedbacks and changes that are still being studied, such as cyclic changes in moisture content and regional dispersion, the methane cycles in the ocean or the potential of methane clathrate / hydrate release, and of course the race to feed more people on a planet which will inevitably add more nitrous oxide to the atmosphere and create more dead zones in the oceans, droughts, floods, fires, dogs and cats living together, mass hysteria....

Likewise, they prefer to debate urban heat island effects rather than to discuss the rising temperature trends, other clear signs of rising temperatures, the positive feedbacks which are beginning to kick in so that climate change will take on a life of its own independently of what we do in the future if changes are not made now (# 111, «Storm World» post, comment # 141) and what such climate change will imply for humanity as a whole (Curve manipulation, comment # 74, A Saturated Gassy Argument, comment # 116).

Impacts such as SLR and heat waves and crop failures and beetles killing forests and all the other dangerous Impacts and Positive Climate Feedbacks and Tipping Points....

It does show that positive feedbacks are dominant, and for timescales of anthropogenic global warming about 2 to 4.5 degrees Celsius per doubling, and a bit higher if you include century - timescale «slower feedbacks» such as ice sheets.

-LSB-[There can easily be cherry picking of feedbacks from the positive ones discussed above, to negative ones such as concentrated convection causing subsidence causing upper troposphere drying.]-RSB-

There can easily be cherry picking of feedbacks from the positive ones discussed above, to negative ones such as concentrated convection causing subsidence causing upper troposphere drying.

There are some positive momentum feedbacks that can reinforce a momentum redistribution, such as associated with storm track activity, or also (I think this is a good example), with feedback from SST rearrangment, ENSO.

When we say «positive» and «negative» feedbacks in the sense of radiation (so I'm not talking about carbon - cycle responses such as methane release from the oceans or such) we're referring to temperature - sensitive variables which themselves affect the radiation budget of the planet.

I think it is not fair to spin these findings in a way that suggests that overall there would be positive feedback in such a situation, as proposed by Brian Dodge («high clouds may give a positive feedback»).

Then there would be the positive feedback such as warming the Arctic waters enough to destabilize clathrate reserves.

And, quite disturbingly, with a manifest warming of only 0.8 ºC, we are already seeing effects − such as the precipitous receding of the Arctic sea ice − that are not only dangerous in themselves but also producing positive feedbacks that accelerate the warming.

An alternative null would have to be a credible view held by at least the extreme scientists, such as there is no net positive feedback to increasing CO2.

I certainly never said individual positive feedbacks don't exist, and even mentioned some related to climate, such as ice albedo and increases in water vapor in air.

Complexity theory suggests that the system is pushed by such things as solar intensity and Earth orbital eccentricities — past a threshold at which stage the components start to interact chaotically in multiple and changing negative and positive feedbacks — as tremendous energies cascade through powerful subsystems.

Its warming effect, however, is simultaneously amplified and dampened by positive and negative feedbacks such as increased water vapor (the most powerful greenhouse gas), reduced albedo, which is a measure of Earth's reflectivity, changes in cloud characteristics, and CO2 exchanges with the ocean and terrestrial ecosystems.

The oscillatory nature of the signal can be thought of in terms of «braking,» whereby positive and negative feedbacks interact in such a way as to support reversals of the circulation regimes.

This issue that deserves a lot of attention in the literature due to the possible existence of (positive) feedbacks that may affect occurrence or intensity of hydrological extremes such as heatwaves.

As such, the positive feedbacks claimed would require the same level of scrutiny as the principle of global warming via human CO2 production, in order to ascertain the impacAs such, the positive feedbacks claimed would require the same level of scrutiny as the principle of global warming via human CO2 production, in order to ascertain the impacas the principle of global warming via human CO2 production, in order to ascertain the impact.

Of course Ferdinand is right not to project catastrophism onto anthropogenic CO2 levels for as you likely know there is a inverse logarithmic relationship between changes in temperature and CO2 levels such that without the assumed positive feedback from water vapour there is no chance of runaway global warming, tipping points or whatever.

As an engineer, I recognized such positive feedback as the hallmark of a fundamentally unstable system subject to «runaway», which is precisely what the likes of James Hansen were postulatinAs an engineer, I recognized such positive feedback as the hallmark of a fundamentally unstable system subject to «runaway», which is precisely what the likes of James Hansen were postulatinas the hallmark of a fundamentally unstable system subject to «runaway», which is precisely what the likes of James Hansen were postulating.

This grim fact is even bleaker if the international community concludes that it should limit warming to 1.5 degrees C, a conclusion that might become more obvious if current levels of warming start to make positive feedbacks visible in the next few years such as methane leakage from frozen tundra or more rapid loss of arctic ice.

Phrases such as «outright destructive dishonesty» have been directed toward lots of things, including the benign statement that the CO2 effect might be overestimated, or the the water vapor feedback is improperly assumed to be positive..

This positive feedback is necessary to trigger the shifts between glacials and interglacials as the effect of orbital changes is too weak to cause such variation.

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

A deterministically chaotic system subject to control variables — such as CO2 — multiple positive and negative feedbacks and multiple equilibria.

These and other observations can be integrated into a model with feedbacks and having two unstable end ‐ points that is consistent both with classical studies of past climate states, and also with recent analysis of ice dynamics in the Arctic basin by Zhakarov, whose oscillatory model identifies feedback mechanisms in atmosphere and ocean, both positive and negative, that interact in such a manner as to prevent long ‐ term trends in either ice ‐ loss or ice ‐ gain on the Arctic Ocean to proceed to an ultimate state.

There is nothing in the climate models that says that the positive feedbacks such as the water vapor feedback and the ice albedo feedback, etc. operate only for CO2 warming and not on natural warming.

The IPCC attribution arguments (as opposed a rigorous scientific treatment of the question) operate under several constraints: the need to fit concerns for positive feedbacks, the need to not accidentally produce a very low value for sensitivity, the obligation to accommodate, and at times, exploit such unknowns as aerosols (very useful but also a pain), and so forth.

One such feedback might exist if, as assumed in some models, relative humidity is constant, so increasing the temperature has the positive feedback of increasing the water vapor.