I think the DOAS FOV looks for the maximum correlation value regardless of whether positive/negative. Maybe should be changed to look for the maximum positive correlation.
Closing this issue, looks like I misinterpreted the counter-intuitive colour scheme which means that blue is a positive correlation. Would expect this to be the other way around.
I think the DOAS FOV looks for the maximum correlation value regardless of whether positive/negative. Maybe should be changed to look for the maximum positive correlation.