Fig. 2
From: Mesospheric radar wind comparisons at high and middle southern latitudes
An example scatter plot for hourly averaged zonal winds for a height of 88 km for 2006 measured with the two meteor radars (left) with the graphical solution for \(\sigma_{x}\), \(\sigma_{y}\), and \(g_{0}\) (right). In the right-hand panel, the curve is bounded by the results of the regression fits and hence shows the upper limits on the error quantities associated with the random noise variances. The horizontal blue and red lines in the right-hand panel show the bounded region of possible solutions for \(g_{0}\) that are determined by \(g_{x}\) (red solution) and \(g_{y}\) (blue solution) from the first plot. The green line in the left-hand plot is a total least squares regression fit to the data which assumes nothing about the errors in the results from each radar. It lies close to, but not on the y = x line, suggesting the errors are not equal, but similar. For further details, see the text