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The attached archive contains long term mean precipitation values in autumn (September, October, November) and in spring (March, April, May) measured in the Baltic meteorological stations.
- Calculate spatial correlogram between these variables at 10 km wide distance intervals up to 500 km. Add the correlogram to the answer.
- At which interval is the spatial correlation between spring and autumn precipitation amount statistically significant at p < 0.01 level?
- How to interpret this correlation climatologically?
The online calculator of spatial data offers tools to solve also this exercise.
Find Spatial correlation
, set paremeters, press calculate and analyze the results. Correlation is significant if the quotient value is outside the envelope calculated from randomly permutated data.