Sentences with phrase «when global measurements»

Global sea level keeps marching up at a rate of over 30 cm per century since 1992 (when global measurements via altimetry on satellites were made possible), and that is perhaps a better indicator that global warming continues unabated.

Not exact matches

The issues relating to sea level rise and the global water budget can only be addressed when the record of satellite gravity measurement from GRACE achieves adequate duration.

(Actually, there are measurements at some sites before 1861, but this date is generally chosen as the first time when there is a dense enough network of data available to make a global average meaningful).

When the IPCC claimed that the GCM models (with GHG forcing included) could replicate the observed changes in global average temperatures do you know if they were referring to a truly global measurement or were they just using the US temp record?

Our measurements of surface air temperatures were much more accurate, and so when people spoke of «global warming,» they tended to focus on air temperatures.

Major holes in geographic, vertical, and temporal coverage present another challenge to the strength of scientific conclusions about global change based on global time series data sets, particularly when it comes to biological measurements.

The contrast is all the more marked when we switch to the solid line of systematic global thermometer measurements, and for the first time we start to see a little bit of that wiggly data (still smoothed out considerably by the artist, I should add).

But when pitted against a brand new climate measurement system that has the best qualities that science can provide, we find that the traditional U.S. methodology is significantly overstating the «global warming» phenomenon.

My skepticism about «official» climate science started in the early 1990's when I attended seminars discussing official measurements of average global temperatures.

When the Earth was this warm millions of years ago, global temperatures and sea levels were far higher than today, says Paul Seagrove of British Antarctic Survey, which reported the measurements.

The use of even more recently computer - reconstructed total solar irradiance data (whatever have large uncertainties) for the period prior to 1976 would not change any of the conclusions in my paper, where quantitative analyses were emphasized on the influences of humans and the Sun on global surface temperature after 1970 when direct measurements became available.

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).

Let's suppose this position is correct, but when creating the global average I cut the percentage of rural stations in the measurement network from 75 % to 25 % (sorry don't know the real numbers).

Prior to 1979 when satellites began to measure lower troposphere temperature all over the globe we had no measure of global average temperature (GAT) only guesstimates based on fewer and fewer measurements using instruments not designed to measure decadal trends so small as a few milliKelvins per decade.

Yet, when scientists examine the empirical temperature measurement datasets, it becomes readily apparent that changes in CO2 levels are not generating the expected changes in global temperatures, as predicted by the immensely powerful and sophisticated (and incredibly costly) climate models.

Note that I am not necessarily claiming that this is the feedback operating on the long time scales associated with global warming — only that it is the average feedback involved in the climate fluctuations occurring during the period when the satellite was making its measurements.

Our results show that GOIs derived from the Argo measurements are ideally suitable to monitor the state of the global ocean, especially after November 2007, i.e. when Argo sampling was 100 % complete.

When it comes to global energy budgets, no amount of measurement quality can compensate for measurement locality... isn't that right TonyB?

When you can produce a measurement of how a change in radiative forcing produces a change in global surface temperature, let us discuss science.

Has anyone explained why such large disagreements for land based measurement disappear when we look at the global totals?

They believe those who work for the government when they say, «we have modeled your future;» and, then the people don't understand when they learn that the, Global warming computer models are confounded as Antarctic... (It's unprecedented: across the globe, there are about one million square kilometers more sea ice than 35 years ago, which is when satellite measurements began).

RussiaGate — Even when global warming alarmists base claims on scientific measurements, they've often had their finger on the scale.

But one would be hard - pressed to claim a unique location (or several) represents the result of CO2 - induced global climate change when scientific measurement - reality obviously indicates accelerating, doomsday sea level rise is not a global phenomenon.

If global warming does not fit the observable temperature measurements, then a new «reality» must be invented to fit the ideology: actual temperature records must be altered or dismissed — hundreds of temperature - reporting stations in colder areas worldwide were eliminated from the global network so the average temperature is higher than when those stations were included link.

At a time when thermometer measurements showed global average temperature rising.

The Global Precipitation Measurement or GPM core satellite flew overhead and found some heavy rain occurring when it measured rainfall rates within the intensifying storm.