3 Thermal Infrared Remote Sensing and Sea Surface Temperature . . .
63
Fig. 3.3 Sea surface temperature (in
◦ C) from MODIS Terra instrument for July 2004 showing
filaments of upwelled waters along the coast of Somalia. The MODIS time series (January 2000–
December 2011) reveals a clear seasonal cycle of the upwelling process with coldest temperature
observed in July during the southwest monsoon. A second minimum temperature is observed in
January as a result of the northeast monsoon and the reversal of the Somali current direction and
cooler SST flowing south from the northern Indian Ocean. In spite of some inter-annual variability
in the seasonal signal, no significant trend is observed over this MODIS decade. Image and plots
are extracted from http://gmis.jrc.ec.europa.eu/using the ‘timeseries’ analysis tool
Précédent

- 85/436

Suivant