Sentences with phrase «spatial correlation»

First of all, the observed changes in global mean temperatures are more easily calculated in terms of anomalies (since anomalies have much greater spatial correlation than absolute temperatures).

There is lots of spatial correlation in the data.

We checked the validity of the assumed covariance model for spatial correlation using the Monte Carlo algorithm and empirical semi-variogram as described in Supplementary File 1.

PPPL scientists have now delved beyond previously published characterizations of turbulence and analyzed the data to focus on the 2 - D spatial correlations within the turbulence.

Linear statistics were used first: area - averaged and Australia - wide spatial correlations of STR intensity and position with precipitation in south - west eastern Australia reveal that STR intensity has a much stronger and more widespread relationship with precipitation in both seasons.

The study reports that glaciers flowing to the coast on the western side of the Peninsula show a distinct spatial correlation with ocean temperature patterns, with those in the south retreating rapidly but those in the north showing little change.

Using spatial correlation functions to quantify the differences between emergent cell lineage segregation patterns, we find that strong adhesion often, but not always, maximizes the size of clonal cell clusters on flat surfaces.

in my paper indicates that the d - o - f of all the fields is significantly less (and sometimes much, much less) than what you would get in the zero spatial correlation case.

However this is just a diversion, in his other «new» paper with Nierenberg, he slides in a admission that, yes, indeed, there is spatial correlation of the residuals in the MM07 model (duh!)

The simulated annular patterns exhibit a high spatial correlation with the observed patterns during the late 20th century, though the mode represents too large a percentage of total temporal variability within each hemisphere.

And this is what I had in mind from previous discussions: a fairly large spatial correlation, like the 800-1200 km that can be found in the Hansen 1987 paper.

Question from a novice: how is this spacial noise — or poor spatial correlation — taken into account when estimating the uncertainty on the average temperature?

Investigations into the Effect of Spatial Correlation on Channel Estimation and Capacity of Multiple Input Multiple Output System

Spatial correlation between mountaintop mining and birth defects was also present, suggesting effects of mountaintop mining in a focal county on birth defects in neighboring counties.

Ross McKitrick did prepare a response to the argument re spatial correlation.

«On the basis of time and spatial correlations, we conclude the DFW sequence may be the result of fluid injection at the SWD [saltwater - disposal] well,» they wrote in a paper published in March 2010 in The Leading Edge.

Application of an external electric field to the crystal sets the electrons in motion, again strongly influenced by the spatial correlations among all electrons.

They found a spatial correlation of up to 80 %.

The results showed that the spatial correlation between earthquakes and wastewater injection volume indeed decreased in 2016.

«When we compared the spatial correlation using datasets that include only magnitude 3 - plus earthquakes, there was no change,» said Pollyea, adding that a larger reduction in wastewater injection volumes is needed to reduce the dangers of large magnitude earthquakes.

Thus, profiles of zonal mean values (the mean values of the measurements taken at a constant latitude ring around the planet) involves comparing long stretched areas near the equator to broad short regions near the poles (if the surface area is compensated for), but due to spatial correlation, this implies that the bands near the equator involve many more degrees of freedom than those near the poles.

We concluded that the adopted covariance model was compatible with the data, as the empirical semi-variogram fell within the 95 % tolerance intervals computed via Monte Carlo simulation and a spatial correlation test of residuals.

Finally, εim is a stochastic error term clustered at the applicant group level to take into account the spatial correlation from students nested within applicant groups.

Preisendorfer's selection rule «rule N» was applied to the multiproxy network to determine the approximate number Neofs of significant independent climate patterns that are resolved by the network, taking into account the spatial correlation within the multiproxy data set.»

My take on his preprint is that his conclusion that «zero spatial correlation can not be rejected» is astonishing.

A decrease in the spatial correlation is consistent with the atmosphere more opaque in terms of IR.

But I suppose we can leave that to a study of the proper way of calculating a error due to spatial coverage, that error will be a function (at least in the math I've seen) involving the spatial correlation which varies considerably.

The second plot shows the spatial correlation between the TOA outgoing IR radiation and the temperature 2m above the surface.

> clearly in California, the spatial correlation is poor, no?

You can see very close stations (in California for exemple) showing different trends... so clearly in California, the spatial correlation is poor, no?

Part of the changes in the spatial correlations is expected to be due to convection and clouds, which too play a role for the GHG, in addition to influencing the planetary albedo.

However, the analysis was designed to minimize such errors, as the spatial correlation estimates are not sensitive to the absolute value but the changes in the spatial structure.