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. 2015 Apr 10;120(4):2543–2556. doi: 10.1002/2014JA020645

Figure 3.

Figure 3

Illustration of two limits of the processes contributing to variation in the phase space density in a grid cell of test particle simulations: (a) variation of the number of particles, N k without changing the average weight; and (b) variation of the average weight, 〈wk without changing the number of particles.