Ten-day Plume Statistics: Per-Plume Per-Plume Per-Plume Begin Date End Date Num Plumes Median Hts (m ASL) Mean Area (sq km) Mean Power (MW) ---------- ---------- ---------- ------------------ ----------------- --------------- 2009-01-01 2009-01-31 0 0 0 0 2009-02-01 2009-02-28 20 1795 51 124 2009-03-01 2009-03-31 77 1736 52 262 2009-04-01 2009-04-30 24 1878 71 675 2009-05-01 2009-05-31 1 2021 96 429 2009-06-01 2009-06-30 0 0 0 0 2009-07-01 2009-07-31 0 0 0 0 2009-08-01 2009-08-31 0 0 0 0 2009-09-01 2009-09-30 0 0 0 0 2009-10-01 2009-10-31 0 0 0 0 2009-11-01 2009-11-30 0 0 0 0 2009-12-01 2009-12-31 0 0 0 0