Figure S7. Daily vertical component
of EP flux (which is proportional to the poleward transport of heat or
upward transport of potential energy by planetary wave) at 100 hPa
averaged over (top) 30°N–90°N and (bottom) 30°S–90°S for MAY 2007. The EP flux unit (kg m-1
s-2) has been
scaled by multiplying a factor of Brunt Väisällä frequency divided
by Coriolis parameter and the radius of Earth. The letter 'M'
indicates the current monthly mean value and the letter 'C' indicates
the climatological mean value. Additionally, the normalized departures
from the monthly climatological EP flux values are shown.