Figure 2: Histograms of Figure 1(c) data: plasma density (CODIF-H1) versus plasma beta (CODIF-H1) for the entire tail season of 2002. Left hand column: the median of binned plasma density versus beta; right hand column: the gradient of the median line. Top row beta scale shows the BR-OPS transition; bottom row shows LOBE-BR. Vertical dashed lines show the statistical BR-OPS boundary condition (top row) and the LOBE-BR boundary condition (bottom row).