ESSO-INCOIS-Indian National Centre for Ocean Information Services

ESSO - Indian National Centre for Ocean Information Services

(An Autonomous Body under the Ministry of Earth Sciences, Govt. of India)

Status Of IOD

Indian Ocean Dipole Index based on INCOIS-GODAS SST analysis and Monthly climatology of OISST (Reynolds sst;constructed using 1981-2010 data).


Figure Indian Ocean Dipole mode Index (DMI). The DMI is defined as the difference between the SST anomalies (ºC) of Western (10ºS-10ºN & 50ºE-70ºE) and Eastern (10ºS-0ºN & 90ºE-110ºE) Equatorial Indian Ocean regions (WEST-EAST).

SST and SST anomalies over different regions of IOD for the last 12 months.


Figure Depth-longitude section of the (10ºS-0ºN) region averaged temperature (ºC) for the latest month for the Indian Ocean longitudes

Figure Depth-longitude section of the (10ºS-0ºN) region averaged temperature (ºC) anomalies for the latest month for the Indian Ocean longitudes. Anomaly is computed with respect to WOA09 monthly climatology