Sentences with phrase «trends on decadal scales»

I don't know if there may be something to accounting for surface / ocean trends on decadal scales, but I was interested in the possibility in light of the recent «haiatus» in surface temperatures.

Not exact matches

Increasing abundances of tropical / subtropical species throughout the 20th century reflect a warming trend superimposed on decadal - scale fluctuations.

On longer time scales, the two longest time series (using independent criteria for selection, quality control, interpolation and analysis of similar data sets) show good agreement about long - term trends and also on decadal time scaleOn longer time scales, the two longest time series (using independent criteria for selection, quality control, interpolation and analysis of similar data sets) show good agreement about long - term trends and also on decadal time scaleon decadal time scales.

You may think these are unimportant at the decadal scale, but this is exactly the topic of Cohn and Lins paper, and, getting back on topic, the Tsonis paper — these larger scale variations have a huge impact on how we perceive climate in the 20th century, particularly in the interpretation of trends.

On the one hand you say «I don't know how to assess skill of decadal trends» and on the other hand you also claim that the «prediction of mean temperature at the regional scale can be done fairly well given the robust temperature trend»On the one hand you say «I don't know how to assess skill of decadal trends» and on the other hand you also claim that the «prediction of mean temperature at the regional scale can be done fairly well given the robust temperature trend»on the other hand you also claim that the «prediction of mean temperature at the regional scale can be done fairly well given the robust temperature trend».

However, this relationship (which, contrary to the claim of MFC09, is simulated by global climate models, e.g. Santer et al. [2001]-RRB- can not explain temperature trends on decadal and longer time scales.»

Yet then after that you say, with apparent complete confidence, that on a (multi)- decadal scale instrumental records show a positive trend.

Throw in a decadal scale forcing operating on both, and explain to me why atmospheric trends in particular locations ought to be smooth.

The Arctic Oscillation was fairly stable until about 1970, but then varied on more or less decadal time scales, with signs of an underlying upward trend, until the late 1990s, when it again stabilized.

Unforced variability of global temperature is great, as shown in Figure 4, but the global temperature trend on decadal and longer time scales is now determined by the larger human - made climate forcing.

But stratospheric water vapor variations apparently do have a sizeable impact on decadal - scale trends.

If there are centennial internal variations — and looking back over the holocene it looks to me there are — then «reversions to mean» over a centennial scale will look like a trend on which shorter decadal length variations will be superimposed.

With a simple regression model based on the four cycles (about 9.1, 10, 20 and 60 year period) plus an upward trend, that can be geometrically captured by a quadratic fit of the temperature, in the paper I have proved that all GCMs adopted by the IPCC fail to geometrically reproduce the detected temperature cycles at both decadal and multidecadal scale.

It is well - known that changes in temperature on decadal time scales are strongly influenced by natural and internal variations, and should not be confused with a long - term trend (Easterling and Wehner, 2009; Foster and Rahmstorf, 2011).

Now the data assessed on the decadal scale shows no reason to divert from the null hypotheses that snow extent is randomly hovering about a stable mean, although we have identified some concerns with variability (In winter snow only (periods 12,01,02)-RRB- The question still remains as to whether there are shorter period trends or particular years that are unusual.