International Journal of Marine Science2016, Vol.6, No.56, 1-9
6
Figure 4 Composite anomalies of SST (
˚C
), Ekman pumping (*10
-6
m/s) and MLD (m) during El Nino and La Nina events
Figure 5 Monthly mean anomalies of (a) alongshore wind stress (τ
alongshore
), (b) Ekman pumping/suction (W
EK
), (c) mixed layer depth
and (d) sea surface temperature averaged over the region (97°- 100°E, 2°S - 5°S)
Thus increase in the along shore wind stress causing lifting of thermocline and consequently decreasing MLD due
to Ekman suction and cooler SST anomalies due to upwelling is readily seen in the positive IOD events near south
east equatorial Indian ocean coast and vice versa is seen in the negative IOD event. Figure 6 depicts composite of
SST anomalies, Ekman pumping anomalies and MLD anomalies in the positive and negative IOD years. The
