Sentences with phrase «spatial autocorrelation»
Spatial autocorrelation refers to the phenomenon where things that are close to each other in space tend to be similar or related to each other. It suggests that the values or characteristics of neighboring locations are more alike than those that are farther away. Full definition
Is there a study out there that I missed (I am thinking something about the temperature spatial autocorrelation for different climate patterns)?
realclimate.org
A spatial autocorrelation of the grid field map produces a hexagonal structure, with 60º rotational symmetry.
RM states in the conclusion... «Across numerous weighting specifications a robust LM statistic fails to reject the null hypothesis that no spatial autocorrelation is present, indicating that the estimations and inferences reported in MM07 are not affected by spatial dependence of the surface temperature field.»
We provide a list of issues that need to be addressed to make inferences more defensible, including the consideration of (i) data limitations and the comparability of data sets; (ii) alternative mechanisms for change; (iii) appropriate response variables; (iv) a suitable model for the process under study; (v) temporal autocorrelation; (vi) spatial autocorrelation and patterns; and (vii) the reporting of rates of change.
Spatial Autocorrelation and the Detection of Non-Climatic Signals in Climate Data was rejected; at least part of the problem was that the paper appeared to add little new to the discussion, as would be expected from a standalone paper.
McKitrick: Yes, but there is no spatial autocorrelation in hte model residuals, and that's the issue.
Given the spatial autocorrelation, that's a really easy test to pass.