Sentences with phrase «average warming trends»

The histograms all show similar average warming trends and the stations with the longest measurement durations show the least dispersion of temperature trends.
Overall, UHI effects contribute 24.2 % to regional average warming trends.
In order to make the trends comparable despite the different periods and CO2 increases, they were divided by the globally averaged warming trend, i.e. all values above 1 show an above - average warming (orange - red), values below 1 a below - average warming, negative values a cooling.
Christy is correct to note that the model average warming trend (0.23 °C / decade for 1978 - 2011) is a bit higher than observations (0.17 °C / decade over the same timeframe), but that is because over the past decade virtually every natural influence on global temperatures has acted in the cooling direction (i.e. an extended solar minimum, rising aerosols emissions, and increased heat storage in the deep oceans).
And I also agree that it is likely that the long - time average warming trend of 0.05 C per decade will resume.
For the thirty - year period 1979 to 2009 (sometimes updated through 2010 or 2011), the various observational datasets find, in the tropical lower troposphere (LT, see Chapter 2 for definition), an average warming trend ranging from 0.07 °C to 0.15 °C per decade.
So all these alarmists on here, man up, show some balls and faith in your statements and tell us by what years in this century will the average warming trend hit 4 - 5 times, 3 times, twice, and even reach the 20 the century warming rate?
This analysis samples the ocean to 700 m depth and gives an average warming trend of 0.64 W m − 2 (red line).

Not exact matches

If average warming is instead caused by increased carbon dioxide, then a cooling trend is unlikely to start on its own.
Most climatologists expect that on average the atmospheres water vapor content will increase in response to surface warming caused by the long - lived greenhouse gases, further accelerating the overall warming trend.
While Mora's models, based on yearly average temperatures, don't forecast monthly highs, lows or precipitation changes, they do show warming trends.
In its annual analysis of trends in global carbon dioxide emissions, the Global Carbon Project (GCP) published three peer - reviewed articles identifying the challenges for society to keep global average warming less than 2 °C above pre-industrial levels.
While 2014 temperatures continue the planet's long - term warming trend, scientists still expect to see year - to - year fluctuations in average global temperature caused by phenomena such as El Niño or La Niña.
So the report notes that the current «pause» in new global average temperature records since 1998 — a year that saw the second strongest El Nino on record and shattered warming records — does not reflect the long - term trend and may be explained by the oceans absorbing the majority of the extra heat trapped by greenhouse gases as well as the cooling contributions of volcanic eruptions.
The findings show a slight but notable increase in that average temperature, putting a dent in the idea that global warming has slowed over the past 15 years, a trend highlighted in the most recent Intergovernmental Panel on Climate Change report.
Time series of temperature anomaly for all waters warmer than 14 °C show large reductions in interannual to inter-decadal variability and a more spatially uniform upper ocean warming trend (0.12 Wm − 2 on average) than previous results.
While this does not mean that each winter will be warmer than the one before, the overall trend indicates that winters have been getting warmer, on average, over the last 45 years, and will likely continue to do so.
(1) The warm sea surface temperatures are not just some short - term anomaly but are part of a long - term observed warming trend, in which ocean temperatures off the US east coast are warming faster than global average temperatures.
Although differing somewhat spatially and seasonally, the warming trend is seen across all temperature variables, including annual average, maximum, and minimum temperatures.
While some places were cooler this year than in recent summers, they may have still been above average over the entire period of record, as warming trends in
In a long - term trend that demonstrates the effects of a warming climate, daily record - high temperatures have recently been outpacing daily record lows by an average of 2 - to - 1, and this imbalance is expected to grow as the climate continues to warm.
We assess the heat content change from both of the long time series (0 to 700 m layer and the 1961 to 2003 period) to be 8.11 ± 0.74 × 1022 J, corresponding to an average warming of 0.1 °C or 0.14 ± 0.04 W m — 2, and conclude that the available heat content estimates from 1961 to 2003 show a significant increasing trend in ocean heat content.
Even though these are the same areas that tend to have above average temperatures during El Niño winters, this pattern is also consistent with the long - term trend we are seeing with global warming.
The point at which a trend becomes clear within the average temperature data for a given region — known as the «time of emergence» — depends on when the source of the warming begins, how fast it happens and the amount of background «noise» obscuring the signal.
«Despite colder than average temperatures in any one part of the world, temperatures over the planet as a whole continue the rapid warming trend we've seen over the last 40 years,» said Gavin Schmidt, director of NASA's Goddard Institute for Space Studies in New York City, at the press conference.
In a long - term trend that demonstrates the effects of a warming climate, daily record - high temperatures have recently been outpacing daily record - lows by an average of 2 - to - 1, and this imbalance is expected to grow as the climate continues to warm.
The warming trends in looking at numerous 100 year temperature plots from northern and high elevation climate stations... i.e. warming trends in annual mean and minimum temperature averages, winter monthly means and minimums and especially winter minimum temperatures and dewpoints... indicate climate warming that is being driven by the accumulation of greenhouse gases in the atmosphere — no visible effects from other things like changes in solar radiation or the levels of cosmic rays.
Second, since warming estimates vary as a function of the GMST data products chosen (Table 2), we propose to estimate trends on the annual averages of all five data products.
* However, the same panel then concluded that «the warming trend in global - mean surface temperature observations during the past 20 years is undoubtedly real and is substantially greater than the average rate of warming during the twentieth century.
You can also see in this graph that the warming trend in the global data for the low troposphere, if we consider the whole set of data, i.e. from the average between 1980 - 1982 till now, with now meaning the average of the last three years, the warming trend is, AT MOST, 0.115 ºC / decade (0.3 ºC in 26 years), but the graph is going down recently, so it should be even less.
Global warming does not mean no winter, it means winter start later, summer hotter, as Gary Peters said «The global average surface temperature has risen between 0.6 °C and 0.7 °C since the start of the twentieth century, and the rate of increase since 1976 has been approximately three times faster than the century - scale trend
Winter month average daily minimum temperature show the strongest warming trends.
A situation which you describe in the paper (see Figures 3a, 3b, first full paragraph of page 461, that the reconstructed trends for the Peninsula are less than the global average and yet you describe is as one of the most rapidly warming places on earth, that your Figure 4e has spatial differences compared with Supplemental Figure 1c and 1d or the image you linked to in comment 18), and which renders that spatial detail of the cover image difficult to interpret.
The study, described in an article today in The Times, finds that poorly understood variations in water vapor concentrations in the stratosphere were probably responsible for a substantial wedge of the powerful warming trend in the 1990s and a substantial portion of «the flattening of global average temperatures since 2000 ″ (to anyone who hates talk of plateaus and the like, those are the authors» words, not mine).
These earlier years, mainly El Nino years, average 11.5 years earlier than the projected recent hottest four, perhaps suggesting a rough calculation of the recent rate of AGW of at +0.16 ºC / decade, this of course the warming trend of peak years through the so - called «hiatus» years and being «peak years», it is a rate which assumes cooler years will be coming along soon.
Mr. Chamie notes that the relatively enormous thirst for energy, food and other resources from Americans, when compared with that of the average world citizen, gives outsize importance to issues like global warming and to American trends.
«We show that the climate over the 21st century can and likely will produce periods of a decade or two where the globally averaged surface air temperature shows no trend or even slight cooling in the presence of longer - term warming,» the paper says, adding that, «It is easy to «cherry pick» a period to reinforce a point of view.»
Three of the four global average temperatures indeed are decreasing in their trends (although the actual global mean temperatures are still warmer than the previous decades).
Many scientists note that 1998 was an exceptionally hot year even by modern standards, and so any average rise using it as a starting point would downplay the longer - term warming trend.
But, he also says: «teams offering projections say ice extent will remain well below the average for the last quarter century and a downward trend in summer ice around the North Pole has not abated,» and we readers are then linked to his October, 2007 article and an August, 2007 image of a «warmed over» Artic.
Going back to the atmosphere, there must be methods devised in calculating the total heat in the system planet wide, that is the key, I see some efforts in finding Upper Air trends, that is better, but again flawed, the Upper atmosphere constantly changes tenperatures throughout a vertical profile hour by hour, taking an average at 700 mb, may miss a strong cooling just below, or warming above.
In the North Atlantic, the measured values differ markedly from the average global warming: the subpolar Atlantic (an area about half the size of the USA, south of Greenland) has hardly warmed up and in some cases even cooled down, contrary to the global warming trend.
If you were to read the analysis of the Bouy data you rely on so much you would find that when the inaccuracies are taken out and the differing measurements are corrected and averaged, there is a clear warming trend.
If you do the same for 31 year averages, 32 year averages, 33 year averages, etc., on on through at least 70 year averages, you continue to find an indisputable trend of climate warming — even if you dismiss the land data as flawed because of the use of daily extremes rather than a more robust indication of the daily mean.
Schneider et al (2010), which shows a 0.1 C per decade trend averaged over all of Antarctica, with warming strongest in the pensinsular, and second strongest in the West Anarctic spring.
There is no spurious warming due to the chosen practice, «As expected, the global averaged SSTA trends between 1901 and 2012 (refer to Table 2) are the same whether buoy SSTs are adjusted to ship SSTs or the reverse.»
While sea ice in the Arctic grows and shrinks with the seasons, there is an overall declining trend, as north pole has warmed roughly twice as fast as the global average.
bozzza - The differences in the Arctic are perhaps 1/4 the ocean thermal mass as global ocean averages, small overall size (the smallest ocean), being almost surrounded by land (which warms faster), more limited liquid interchanges due to bottlenecking than the Antarctic, and very importantly considerable susceptibility to positive albedo feedbacks; as less summer ice is present given current trends, solar energy absorbed by the Arctic ocean goes up very rapidly.
My value of — 0,32 K may be warmer than your -0,37 K, because I use the trend values in 2008 to get the number, not an average value?
We'll also be presenting the warming and cooling rates (the trends) on a zonal means (latitude average) basis.
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