Sentences with phrase «multidecadal variations»

"Multidecadal variations" refers to fluctuations or changes that occur over a period of several decades. It means that something is going through cycles or patterns that span multiple decades. Full definition
Soon, W., 2005: Variable solar irradiance as a plausible agent for multidecadal variations in the Arctic - wide surface air temperature record of the past 130 years, Geophysical Research Letters32: doi.10.1029 / 2005GL023429.
Unfortunately, Norris and Slingo (2009) say: «Previous investigators have documented multidecadal variations in various cloud and radiation parameters, but no conclusive results are yet available.»
Additionally, changes in anthropogenic sulfate aerosol forcing have been proposed as the dominant cause of the AMV and the historical multidecadal variations in Atlantic tropical storm frequency, based on some model simulations including aerosol indirect effects.
Moreover, we show that multidecadal variations exist in other hydrological variables (evapotranspiration, snow cover, and soil moisture).
Because the ACRIM TSI composite shows an evident upward pattern from 1980 to 2000 while PMOD shows a slight downward trend during the same period, the former would suggest a larger TSI low - frequency variability than the latter and different TSI multidecadal variation mechanisms.
Anticorrelated multidecadal variations between surface and subsurface tropical North Atlantic
Coherent multidecadal variations involving the inferred AMOC and Atlantic major hurricane frequency, along with indices of AMV and inverted vertical wind shear, exist over the entire period since the middle of the 20th century.
We are in a cool phase of the Pacific multidecadal variation — and the north - east Pacific is cooling.
By adding the effect of aerosols into a sophisticated climate model, the scientists were able to show that the human - generated particles explained fully 76 % of the multidecadal variations in their simulations, which in turn matched what happened in the real Atlantic from 1850 - 2005.
Decadal and multidecadal variations have occurred in some regions, but their magnitudes are smaller than that of the recent ice loss.
Specifically, the claim was made that temperatures in Churchill, Manitoba (close to the center of the Western Hudson Bay population of bears) had not risen, and that instead, any multidecadal variations in temperatures affecting the bears were related to the Arctic Oscillation (AO), a mode of natural variability.
Thanks to these reconstructions, we confirm that the multidecadal variations previously noted in French river flows have mainly a climatic origin.
Characterizing and understanding the multidecadal variations of the continental hydrological cycle is a challenging issue given the limitation of observed data sets.
That is, the animation of the GISS maps and the data GISS provides with those maps show that the trends in global sea surface temperature are driven by the multidecadal variations in the strengths and magnitudes of El Niño and La Niña events.
Climate models can not accurately predict the timing of natural variation, especially the multidecadal variation associated with the warm and cool phases of the Interdecadal Pacific Oscillation (IPO).
However, I am convinced that if Dr. Spencer did a regression against ALL available variables including CO2 (instead of «cherry picking» only three), then his regression would put CO2 in its proper place as driving the very long term trend while the AMO would assume its proper place in driving much of the multidecadal variation and boosting the recent warming.
The lead author of EJN utilized the bias - removal in his earlier work [1997], but not here where it appears to be crucial in the analysis of multidecadal variations.
«Such reconstructions represent interannual to multidecadal variations in temperature with a very high level of fidelity, but the indexing procedure used in assembling the earlier chronology predictors prohibits the representation of temperature variability on time scales of about a century or longer.»
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