A total of 131 sample plots of the Norwegian National Forest Inventory (NFI) with timber volume interpolated and extrapolated to the year 2011 as the variable of interest and mean vegetation height derived from image matching as the auxiliary variable.
A data frame with 131 observations on the following 2 variables.
numeric vector of the variable of interest
numeric vector of the auxiliary variable
Breidenbach, J., Ronald E. McRoberts, Astrup, R. (2015), Empirical coverage of model-based variance estimators for remote sensing assisted estimation of stand-level timber volume. Remote Sensing of Environment. In press.
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