Sentences with phrase «statistical analysis of»

In this paper we present the results of a rigorous statistical analysis of all available sunspot observations around the suggested additional cycle minimum in 1792 — 1793.
Such an understanding is unavoidable in statistical analysis of meteorological time series because, as a rule, they are affected by many forcing types including the seasonal and daily cycles in solar radiation.
Since CO2 is released continuously into the atmosphere by human activity, biomass activity and geologic activity, one would think that any exponential growth would be clearly visible and clearly differentiated in the statistical analysis of over 600 monthly measurements, in my opinion.
(According to a statistical analysis of the data, with 95 percent confidence, the increase has been between 22 and 26 percent.)
I claimed «The WR contains no actual new statistical analysis of MBH itself, just reworks of MM material.»
But also see Tol, R.S.J. and A.F. de Vos (1998), «A Bayesian Statistical Analysis of the Enhanced Greenhouse Effect», Climatic Change, 38, 87 - 112 for a rather simlilar study, with rather simpilar conclusions from 12 years ago.
Statistical analysis of the record revealed «the hurricane number is actually decreasing in time,» which finding is quite stunning... as the Mexican research team indicates, «when analyzing the entire time series built for this study, i.e., from 1749 to 2012, the linear trend in the number of hurricanes is decreasing».»
If Wegman has done a statistical analysis of his work vs. those pieces he's been accused of plagiarizing, it's news to me.
Gavin Schmidt, Michael Mann, and Scott Rutherford (apparently representing the Team) have written a scathing comment letter to the Annals of Applied Statistics about the recent allegedly «hockey - stick busting» paper by the naïve statisticians McShane and Wyner entitled A Statistical Analysis of Multiple Temperature Proxies: Are Reconstructions of Surface Temperatures Over the Last 1000 Years Reliable?
The WR was very likely meme - laundering M&M material from various grey sources, under the guise of doing statistical analysis of MBH, about the one thing they didn't do, i.e., the equivalent of Wahl, Amman (2007).
«Quantified measures of uncertainty in a finding expressed probabilistically (based on statistical analysis of observations or model results, or expert judgment).»
I'm a professional, I specialize in the statistical analysis of time series — I know.
CO2 clearly follows temperature — as is seen in the statistical analysis of Ole Humlum and in the paleoclimatic record.
Kopp et al. [53] made a statistical analysis of data from a large number of sites, concluding that there was a 95 % probability that the Eemian sea level reached at least +6.6 m with a 67 % probability that it exceeded 8 m.
Rob Ellison August 25, 2014 at 1:15 am «CO2 clearly follows temperature — as is seen in the statistical analysis of Ole Humlum and in the paleoclimatic record.»
Instead of just performing a statistical analysis of the weather station and sea surface observations, the reanalysis attempts to construct a complete model of the state of the Earth's atmosphere at any point in time.
As for population homogeneity, the modern replication of Yamal is justified by the sensitivity analysis above based on Esper's tests for sample depth as well as the statistical analysis of Bunn.
On his blog, tamino does the statistical analysis of the BEST data and finds that because the timeframe in question is so short, the uncertainty is too large to say for certain that the short - term trend in question is any different than the long - term trend.
Koutsoyiannis, D., and A. Montanari, Statistical analysis of hydroclimatic time series: Uncertainty and insights, Water Resources Research, 43 (5), W05429.1 — 9, 2007.
This conclusion is characterized as being «extremely likely» based on statistical analysis of the output from climate models.
A paper published back in 1998 and co-authored by Richard Tol and titled: A BAYESIAN STATISTICAL ANALYSIS OF THE ENHANCED GREENHOUSE EFFECT dealt with climate sensitivity, even though the main purpose of the paper was to demonstrate: «This paper demonstrates that there is a robust statistical relationship between the records of the global mean surface air temperature and the atmospheric concentration of carbon dioxide over the period 1870 — 1991.»
I have done a rather detailed statistical analysis of the readily available NOAA ice core data from both Greenland and Antarctica.
And it's about the statistical analysis of that data, which I thought might interest you.
Perhaps it is just time to stop the statistical analysis of survey answers..
A heuristic and statistical method involves using a trial and error approach to solve a problem in conjunction with statistical analysis of real data.
Furthermore statistical analysis of model output is a problematic, because the IPCC's ensemble of opportunity does not systematically explore parameter space.
Using high - powered models and complex statistical analysis of observations, credible scientific statements can now be made about how climate change affect the frequency or intensity of a specific weather event.
Arguing about starting points for statistical analysis of the temperature data is nothing more than an academic exercise.
Section 1 contains five subsections with results on 27 - day response of low - latitude ionosphere to solar extreme - ultraviolet (EUV) radiation, response to the recurrent geomagnetic storms, long - term trends in the upper atmosphere, latitudinal dependence of total electron content on EUV changes, and statistical analysis of ionospheric behavior during prolonged period of solar activity.
«We first state the main problem of the statistical analysis of stochastic dynamical systems as we understand it: based on a statistical analysis of these systems, to reveal their common features that are realized with probability one, i.e., for almost every realization of the relevant dynamical system.
There may be other ways to find out who's behind it, but my impression is that statistical analysis of the text is a dead - end.
David Stockwell did a statistical analysis of the probability of such a large step up in the OHC occurring as the jump depicts; it is impossible:
Parker does not provide a proper statistical analysis of all the stations.
See David Stockwell's interesting statistical analysis of temperature.trends in evaluating such climate shifts.
A statistical analysis of water use in New York City showed that above 25 °C, daily per capita water use increases by 11 litres / 1 °C (roughly 2 % of current daily per capita use)(Protopapas et al., 2000).
A Discussion of «A Statistical Analysis of Multiple Temperature Proxies: Are Reconstructions of Surface Temperatures over the Last 1000 Years Reliable?»
The basis of climate scientists claims are not, however, founded on any simple (and somewhat ignorant) statistical analysis of the data.
«I was irked by the persistent use of wishy - washy terminology such as «likely» and «very likely» that was totally uncalled for... Such «social sciences» terminology might be allowable if there was no other available evidence for global warming except for the statistical analysis of a relatively short global temperature time - series (on which there is superimposed a substantial natural variability component).
The agency said the papers were withdrawn over «concerns raised by an independent statistician about the statistical analysis of tide gauge records».
What was done was with multivariate statistical analysis of indices over the past century.
Everyone here understands the PDO is derived through a statistical analysis of the sea surface temperature anomalies of the North Pacific, north of 20N.
I also have substantial experience with the statistical analysis of time series, which is what tree - ring analysis is based on.
Beitsch et al. (University of Hamburg); 4.8 ± 1.7; Statistical The KlimaCampus's outlook is based on statistical analysis of satellite derived sea ice area.
But to show prediction / calibration is possible it should at least be necessary to show that the statistical analysis of the prediction exceeds that of random noise.
In one method, a statistical analysis of observational records was performed (using the KNMI Climate Explorer) to compare this summer's heat with summers during the early part of the century, before global warming played a significant role in our climate.
A statistical analysis of the observations shows that the probability of observing such a heat wave has more than doubled over the past 37 years in most of the affected region.
Statistical analysis of observed daily cloud cover and sulfate surface concentrations in Europe and North America indicates a significant negative correlation between clouds and sulfate.
The former can be said with a great deal of certainty because it relies on and a reality of scientific measurement and the statistical analysis of error bounds.
Statistical analysis of the carbon and oxygen stable isotope recordsr eveals variations in the periods around 100, 11 and 3 years.A century scale connection between the 13C / 12C record and solar activity is most evident.»
Through multivariate statistical analysis of an expanded database, we further investigate this hypothesized signal to elucidate propagation dynamics.
a b c d e f g h i j k l m n o p q r s t u v w x y z