Figure 1

Altitude distribution of scale height values derived from: (a) the COSMIC RO measurements binned with 4 km in scale height and 13 km in altitude during the first 60 days of 2014 and (b) Van Allen Probe data using the entire dataset of 2014 binned with 44 km in scale height and 436 km in altitude. The color bar shows the normalized occurrence of the most predominant patterns of the dataset. Black dashed lines represent a linear fit on figures a) and b) and quadratic fit on figure b).