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. 2016 Mar 4;11(3):e0150409. doi: 10.1371/journal.pone.0150409

Fig 5. Potential vorticity anomaly (PVA) (s-1) time series at 30-m (left column) and 100-m (right column) during the cyclonic wake-flow period in model month September of the climatological simulation, for model day 4 (a, b), 5 (c, d) and 6 (e, f).

Fig 5

White (orange) arrows show the negative (positive) vorticity anomaly generation region. Yellow (pink) arrows indicate the anticyclone (cyclone). Grey lines show the location of the cross sections in Fig 6.