Sentences with phrase «temperature trends over»

Perhaps while I am waiting for Max to suggest what is missing from the PDO correlation with temperature trends over the last 160 years I may take the liberty of suggesting that in respect of the overall upwards trend in temperature, despite the PDO oscillations [sic], that ENSO asymmetry adequately explains the [slight] temperature increase over that period; see the David Stockwell comment on the McLean et al paper for an overview of such non-linear asymmetry:

As such, it is an invaluable tool for quickly comparing temperature trends over varying timeframes.

While there are areas, such as the extra-tropical Pacific and North Atlantic Ocean, where the GFDL model warms significantly more than has been observed, the anthropogenic climate change simulations do provide a plausible explanation of temperature trends over the last century over large areas of the globe.

The temperature trends over that period in the GISS record is 0.24 + / - 0.04 degC / dec.

«The observed 0.09 °C / a trend at Summit, six times the global average trend, ranks in the 99th percentile of all globally observed temperature trends over the climatology period (Figure 2 inset).

This experiment showed that the projections of climate models are consistent with recorded temperature trends over recent decades only if human impacts are included.

In fact, temperature trends over the last 15 years have fallen below the 95 % confidence level of nearly every climate model used by the IPCC.

We've got positive, negative and zero (approximately) temperature trends over this period.

To summarize, there is a severe annual cycle in the UAH LT data set that results in a noticeable divergence in both the global and tropical monthly temperature trends over the 1979 - 2008 period.

In my opinion, the WORST aspect of this is that Judith Curry states unequivocally that «Our data show the pause,» which utterly ignores the extreme level of uncertainty in temperature trends over periods as short as 10 years or less, after she has so often indulged in self - righteous posturing on her own blog about the «uncertainty monster.»

Linear temperature trends over just 10 years have no scientific value IMO.

Hence the temperature trends over the past 135 years can be synthetized the superposition of a background linear warming trend with a triangular shape fluctuation, whose slope is +0.06 + / - 0.11 °C per decade.

Then in 2009 when the temperature plateau became too obvious to ignore, Knight et al. (2009), in a report on climate by the American Meteorological Society, asked the rhetorical question «Do global temperature trends over the last decade falsify climate predictions?»

The temperature trends over same length time periods, e.g. 20 years, have a frequency distribution, too.

Knight, J. Global oceans: Do global temperature trends over the last decade falsify climate predictions?

Firstly, that the statistical distribution of the observed 15 - year global temperature trends since 1880 isn't distinguishable from the distribution of 15 - year global temperature trends derived from an ensemble of model simulations, and, secondly, whether simulated global temperature trends over 15 years since 1950 lie in the same tail of the statistical distribution as the observed 15 - year temperature trends or whether the simulated and observed trends lie in opposite tails of the distribution largely depends on whether the simulated and observed ENSO variablity over the 15 - year periods are in phase or out of phase by chance.

Abstract: Temperature trends over 1979 — 2008 in the U.S. Historical Climatology Network (HCN) are compared with those in six recent atmospheric reanalyses.

The bizarre consequences of USHCN's monthly homogenization adjustments are seen by comparing changes in Death Valley's maximum temperature trends over the past 2 years (solid black line).

The positive temperature trends over the WAIS are spatially adjacent to the negative trends in sea ice concentration over the Amundsen and Bellingshausen Seas.

There are many people who have graphed the temperature trends over the past 10 years and I would love to see a page developed that compiled and compared the shifting trends created by homogenization over recent years after the quality control of historic data had already been completed.

They will help my efforts to look further at the AWS temperature trends over the last 30 or so years and closer at the 1957 - 2006 trend.

Just like the slow retreat of Alpine glaciers since 1850 has likely had something to do with warmer long - term temperature trends over Europe, since we have been emerging from a generally colder period, called the Little Ice Age.

Better still before KR kindly pointed to that graph, I had broken down and endeavoured to digitize the FAR graphs myself and reference temperature trends over the period prior to 1985 from the FAR graphs.

Scientists have high confidence about global temperature trends over recent decades because those observations are based on a massive amount of data.

Therefore, regional temperature trends over a few decades can be strongly influenced by regional variability in the climate system and can depart appreciably from a global average.

The record of temperature trends over the past 15 years is information.

Temperature trends over the past five centuries reconstructed from borehole temperatures.

Knight, J., J. J. Kennedy, C. Folland, G. Harris, G. S. Jones, M. Palmer, D. Parker, A. Scaife, and P. Stott, 2009: Do global temperature trends over the last decade falsify climate predictions?

Figure 9.6 (fourth row) shows that climate models are only able to reproduce the observed patterns of zonal mean near - surface temperature trends over the 1901 to 2005 and 1979 to 2005 periods when they include anthropogenic forcings and fail to do so when they exclude anthropogenic forcings.

NCEI scientists conducted this study to determine the reliability of surface temperature trends over the conterminous U.S. (CONUS) following photographic documentation of poor siting conditions at USHCN stations.

Figure 9.6 compares observed near - surface temperature trends over the globe (top row) with those simulated by climate models when they include anthropogenic and natural forcing (second row) and the same trends simulated by climate models when only natural forcings are included (third row).

Do global temperature trends over the last decade falsify climate predictions?

How one can read even that short abstract and miss that this paper accepts the existence of UHI, and that it is about the impact of UHI on the magnitude of temperature TRENDS over time, is utterly beyond me.

The authors compared temperature trends over four different time intervals, the 1900s, the first and second halves of the 1900s, and the last 30 years of the 1900s.

They questioned the reliability of the National Climatic Data Center's homogenization adjustments, and suggested that a combination of poor station exposure, urbanization bias and unreliable homogenization adjustments had led to a spurious doubling of U.S. mean temperature trends over the period 1979 - 2008.

By that standard, last week in Rochester we should have stopped preparing for winter given that we had several days of warm temperatures that surely made the temperature trends over some reasonable time period of a week or more positive rather than negative, as would be expected if this seasonal cycle theory was real.

Based on previously reported analysis of the observations and modelling studies this is neither inconsistent with a warming planet nor unexpected; and computation of global temperature trends over longer periods does exhibit statistically significant warming.

The end result is that the temperature trends over the past 17 or so years has continued to increase with no halt.

Additionally, we show that the largest regional contributor to global temperature trends over the past two decades is land surface temperature in the NH extratropics.

The trend in the SAM helps explain the pattern of recent temperature trends over Antarctica.

Temperature trends over the 1989 — 2008 period averaged around circles of latitude for winter (a), spring (b), summer (c) and autumn (d).

Similar but longer - term natural variability can also influence global mean surface temperature trends over several decades, as Scripps researchers have recently reported.

Animation 1 compares the GISS land surface air temperature trends to UAH lower troposphere temperature trends over land for the period of 1979 to 2012.

If the raw temperature data arranged over a time interval does not accurately reflect temperature trends over that interval, how is it possible to verify that the adjustments you make to that raw data DO accurately reflect temperature trends over that interval?

From Phys.Org — August 2014 When the Intergovernmental Panel on Climate Change recently requested a figure for its annual report, to show global temperature trends over the last 10,000 years, the University of Wisconsin - Madison's Zhengyu Liu knew that -LSB-...]

Back in 2001, Peter Doran and colleagues wrote a paper about the Dry Valleys long term ecosystem responses to climate change, in which they had a section discussing temperature trends over the previous couple of decades (not the 50 years time scale being discussed this week).

It is worth adding though, that temperature trends over the next few decades are more likely to be correlated to the TCR, rather than the equilibrium sensitivity, so if one is interested in the near - term implications of this debate, the constraints on TCR are going to be more important.

Does that mean the global mean surface temperature trends over the 20th Century, or just that some 20th Century data is used?

Huang, Shaopeng, Pollack, Henry N., and Shen, Po - Yu (2000) «Temperature trends over the past five centuries reconstructed from borehole temperatures,» Nature, 403 (17 February 2000), 403, 756 - 758.

The temperature trends over that period in the GISS record is 0.24 + / - 0.04 degC / dec.