A comparison of a normal photograph of the flow front with a therma...

A comparison of a normal photograph of the flow front with a thermal image. Although the leading edge of the flow has advanced only a slight amount over the past week (about 100 m, or 110 yards), active portions behind the flow front have moved at a faster rate. Surface flows along the southern margin of the flow have advanced 575 m (630 yards) over the past week, and are now close to the leading edge of the flow. The thermal image shows that other breakouts are scattered behind the flow front.