920608.fig.002a
(a)
920608.fig.002b
(b)
920608.fig.002c
(c)
920608.fig.002d
(d)
Figure 2: (a) Conventional raceways 26 days after inoculation on 2/21/2011. (b) Raceway schematic and dimensions. (c) Night-time operation. (d) Ice slurry after record lows on 2/3/11.