Figure 50.  Airborne GAMMA flight line plan for the Rabbit Ears Study Area. All flight lines are shown in red. Lines begin at the labeled end, with the exception of EX302 and EX322. Flight tests of these lines in early April, 2001 indicated full-attenuation of line EX316 due to deep snow packs. Six lines on the upper elevation plateau had low gamma counts (EX302, EX307, EX314, EX315, EX316, EX321, and EX322). If this is encountered during the experiment, SWE measurements can still be made but uncertainty will be greater.