Sentences with phrase «trend over the period»

The updated numbers are not directly comparable to the ones in the AER study, but they show the same trends over the periods in which the two data sets overlap.

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

For the 2005 - 2010 period the error uncertainty is plus / minus 0.1 watt per square metre; quite large considering the global trend over the period is 0.55 watts per square metre.

Those people that are familiar with the stock market understand that the prices of certain stocks usually follow particular trends over a period of time.

Specifically, 8 model runs out of 131 have trends over that period greater than 0.13 ºC / decade — suggesting that one might see this magnitude of excursion 5 - 10 % of the time.

The original graph however does not seem to talk about trends over that period but about «net change relative to average 1979 - 1988» — which is supposed to be zero particularly for UAH.

Both the western and eastern poles display warming trends over this period, particularly after the 1950s.

The data are not well described by a linear trend over this period.»

-- I calculated potential intensity trends over the period 1980 - 2012 & The disparity between the reanalysis potential intensity trends over the past 30 years and the projected trends over this century suggests either that most of the observed increase in potential intensity (and actual intensity of high category storms) is due to natural variability,....»

If you try to find a trend over that period, it is close to zero, but so is the correlation.

I calculated potential intensity trends over the period 1980 - 2012 using three different reanalysis products: NASA's MERRA, the European Center's ERA Interim, and the NCAR / NCEP reanalysis.

Smoothing the full Moberg reconstruction yields maxima and minima that are slightly further apart ~ 1620 and ~ 1690 The trend over this period is only about a degree which looks to be about a third the size of S&W but they are trends none the less.

To see that you have to look at a (statistically significant) trend over the period.

And since the Southern Ocean SST anomaly trend over this period is negative, its interaction with the Southern Hemisphere oceans lowers the trend of the dataset.

What caused a reduction in weathering — given that the trend over the period was an increasing area of continental crust?

The linear decrease each year from 2013 will correspond better to expected emissions trends over the period.

On the explanation of the observed reduction in the surface warming trend over the period 1998 - 2012, Saudi Arabia strongly urged incorporating language from the Technical Summary on models overestimating the warming trend.

``... I have also included [this in a table summary that he produced] the trend over the period 1975 to 2009, which has a very similar trend to the period 1975 - 1998.

The figures for the date centre are calculated slightly differently, but they too show no trend over the period in question.

The fact is that if you imagine sticking an OLS trend over a period is a good test of whether warming has stopped you'd have wrongly concluded warming had stopped in 1987.

None of these show any trend over the period — but show interannual variation two orders of magnitude greater than changes in greenhouse gas forcing.

Furthermore, based on a well - known solar activity forecast (Abdussamatov 2015) and specific assumptions on the other natural explanatory variables (i.e., volcanic and oceanic / ENSO activity), this new Research Report also provides a long - term forecast that UAH TLT temperatures are very likely to exhibit a declining trend over the period through 2026 at the least.

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.

In fact, a slight cooling has been the trend over this period.

«the 1700 - present greenhouse gas forcing is more than double the 1700 - present solar forcing and hence the warming trend over that period in the model is driven mainly by GHGs.»

If we heed the findings of Santer et al. and examine at least 17 years worth of data, the trend over that period is positive in both UAH (0.14 °C per decade) and RSS (0.07 °C per decade).

And while the global warming trend spans many decades, the longest cooling trend over this period is 10 years, which proves that each was caused by short - term noise dampening the long - term trend.

Regardless of what references can be given to other sources, the data is right there now and does indeed show a statistically significant warming trend over that period.

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.

The left - hand panel of Figure 1 (below) illustrates the observed trends over the period 1900 — 2012 for weather observing stations in the contiguous United States located west of longitude 116 ° W — this includes all of Washington and Oregon, most of California, and parts of Idaho and Nevada.

I think they show that both cycles are underlain by a longer, larger cycle giving a background rising trend over the period for which the solar changes from 1600 to date would be a primary candidate.

Eli, the trend over that period you refer to is more (or is it less?)

This trend is much lower than the 0.08 °C / decade global mean trend over the period.

It would have no effect at all on the trends over the period, of course, but it would lead to less complaining about distant past temperatures changing at the expense of more present temperatures changing..

«By way of comparison, the University of Alabama Huntsville (UAH) Lower Troposphere CONUS trend over this period is 0.25 °C / decade and Remote Sensing Systems (RSS) has 0.23 °C / decade, the average being 0.24 °C / decade.

Over the most recent 17 - year period, the BEST trend is 0.36 °C per decade *, clearly showing the anthropogenic warming trend over that period.

You write, in reference to it: «his choice of ocean heat uptake is based on taking a short term trend over a period in which the observed warming is markedly lower than the longer - term multidecadal value.»

As a result, only 1 out of 7 Global or Land / Ocean (ie, global less polar regions) temperature indices shows a negative trend over that period (HadCRUT4 -0.002 + / - 0.059 C / decade).

But Tamino's work has shown that any deviations from linearity in the underlying trend over this period are too small for us ton know their form or direction.

Indeed, one can see the piling up of water in the Western tropical Pacific in the sea level trend over the period of satellite altimetry (1993 - to present)- a clear sign of the intensified winds there.

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.»

Global sea level trend during 1993 — 2012 Here we investigate the global - mean sea level (GMSL) change during 1993 — 2012 using Empirical Mode Decomposition, in an attempt to distinguish the trend over this period from the interannual variability.

There are, however, differences between simulated and observed trends over periods as short as 10 to 15 years (e.g., 1998 to 2012).

I've seen a lot of bizarre claims that the trend over that period being smaller somehow does not matter.

A flat line with slope of 0 containing a million data points satisfies your criterion of «non statistically significant trend over a period long enough for the statistical power of the test to be 95 %» but I can't see how it's relevant to the discussion.

However, the same report also acknowledged that there are «differences between simulated and observed trends over periods as short as 10 to 15 years.»

Show me a non-statistically significant trend over a period long enough for the statistical power of the test to be 95 % (so the test is equally balanced), and you will have demonstrated that you understand the statistica issue and proven me wrong and I will happily admit it.

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

Your continued inability to demonstrate a non-significant trend over a period long enough to have useful statistical power is noted.

-LCB- 9.4, Box 9.2 -RCB- • The observed reduction in surface warming trend over the period 1998 to 2012 as compared to the period 1951 to 2012, is due in roughly equal measure to a reduced trend in radiative forcing and a cooling contribution from natural internal variability, which includes a possible redistribution of heat within the ocean (medium confidence).