Sentences with phrase «measure changes in air»

Not exact matches

When you use a measuring cup, the moisture in the air, the way you scoop the flour, and whether it was compacted or light and airy changes day to day.

The new Schmidt grant will allow the Scripps team to chip away at a years - long backlog of air samples to measure changes in the ratio of carbon isotopes, which provides information about manmade sources of CO2.

In such a way, measures to tackle air pollutants also help combat climate change.»

Now that the nip is already in the air, it's understandable you have taken every measure to change your wardrobe.

Two more efficiency measures: the system that cuts fuel while coasting or braking now works in all gears, rather than being restricted to first and second; and changing the intake to face forward means cooler air going to the engine.

I just read in its 22 March edition, under a heading «The hot air of hypocrisy,» that at a March meeting of European leaders, «Leaders from countries with powerful heavy - industry lobbies called for explicit measures to «protect» European firms in case talks on a global climate - change deal failed... Germany, France, Austria, Italy, and the Czech Republic all asked the EU to plan for failure, insisting that defensive measures must be agreed before climate - change talks in Copenhagen at the end of 2009.»

A tiny theoretical change which nobody can actually measure, in the air (above) that ice?

The key points of the paper are that: i) model simulations with 20th century forcings are able to match the surface air temperature record, ii) they also match the measured changes of ocean heat content over the last decade, iii) the implied planetary imbalance (the amount of excess energy the Earth is currently absorbing) which is roughly equal to the ocean heat uptake, is significant and growing, and iv) this implies both that there is significant heating «in the pipeline», and that there is an important lag in the climate's full response to changes in the forcing.

I think it's a mistake to refer to changes in global average surface air temperatures as if they were definitive measures of the change to the climate system.

Airtightness is typically measured in two units: air changes per hour (ACH) and air permeability (m3 / hr / m2).

Dana, I think you are pushing in the right direction with this; heat content is a much more direct measure of the underlying changes to the climate system than average air temperatures and climate science communicators should make heat content their first response to the suggestion that global warming is something that waxes and (allegedly, recently) wanes.

These issues, which are either not recognized at all in the assessments or are understated, include: - the identification of a warm bias in nighttime minimum temperatures - poor siting of the instrumentation to measure temperatures - the influence of trends in surface air water vapor content on temperature trends - the quantification of uncertainties in the homogenization of surface temperature data, and the influence of land use / land cover change on surface temperature trends.

For example, let's say that evidence convinced me (in a way that I wasn't convinced previously) that all recent changes in land surface temperatures and sea surface temperatures and atmospheric temperatures and deep sea temperatures and sea ice extent and sea ice volume and sea ice density and moisture content in the air and cloud coverage and rainfall and measures of extreme weather were all directly tied to internal natural variability, and that I can now see that as the result of a statistical modeling of the trends as associated with natural phenomena.

We further estimate that, in most northern hemispheric regions, these changes in the likelihood of extreme summer mean WBGT are roughly an order of magnitude larger than the corresponding changes in the likelihood of extreme hot summers as simply measured by surface air temperature.

«Not only is it extreme in any number of measures — air temperature, loss of sea ice and on and on — but there are so many things we haven't seen, particularly this extremely warm fall,» said study co-author Brendan Kelly, executive director of the Study of Environmental Arctic Change at the University of Alaska, Fairbanks.

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).

The observed changes in air temperature that we notice and measure occur during the process of equalisation and are fully explicable by that process alone.

Countries, states, cities, and companies are taking action, partly out of concern about climate change, but also because such action is in their own economic interest — either directly (through money - saving efficiency measures like LED street lights) or indirectly (by saving lives now cut short by air pollution).

In this configuration the air will stabalise into a circulation pattern which can be measured for flow velocity and represents the energy flows from hot to cold via air thermal changes.

Thus a parcel of air into which water vapour is injected will rise without any change in ambient temperature.The reduction of density from surface upwards is what initially reduces air pressure as measured from the surface.

The response time of the sensor used in the Bureau AWSs is as long or longer than the changes in the temperature of the air it is measuring.

Anders, the different behavior of the rising minimum could be due to increased moisture via El Ninos, land surface changes that hold the morning heat when and where minimums are measured, changes in the wind that lessen the pooling of cold morning air, or perhaps CO2.

Well, I was one of the first persons in the blogosphere at the time to evaluate that, because I compared the dip in the temperature of sampled water with the dip in the temperature of near - surface air measured on ships, and observed that approximately half or so of the dip was explainable by instrumentation changes and the remainder by some other mechanism — probably a change in internal ocean dynamics (PDO, AMO, etc..)

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.

Whatever happens to the oceans is only a miniscule variation for the oceans but it translates to changes in the air large enough for us to measure and regard as substantial or even alarming.

I - 732 is a citizen ballot initiative to fight climate change; to make polluters pay when they damage our air, water and health; and to give that money back to the people in the biggest anti-poverty measure in this state since groceries were made sales tax exempt in 1977.

30c Mercury Air Toxics Standards and the Extreme Punishment Agency (EPA) 31c Five or More Failed Experiments in Measuring Global Sea Level Change 32c False Rejection of Sun - Climate Connection by IPCC's «Gangster Science.»

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