Fig. 6From: The value of using measurements of geomagnetic field in addition to irradiance and sea surface temperature to estimate geolocations of tagged aquatic animalsThree-dimensional plot of these surface temperatures (SST) at different longitudes and latitudes when the PTT crossed the 65° meridian on June 15, 2013. The shaded bands are at 2 °C intervals. The SST gradient is location specific and highly variable, meaning that north–south positioning accuracy and confidence can be expected to vary accordinglyBack to article page