66
N. Hoepffner et al.
Fig. 3.5 Latitudinal-time
section of SST upwelling
index as defined by the zonal
difference in TIR data for the
period July 1981 to August
1989 (adapted from Nykjaer
and van Camp 1994).
Negative values refer to
coastal temperature lower
than 500 km offshore at given
latitude