26 May 2009

TerraSAR-X captures detailed radar image of the Grafton Floods

Apogee collected a StripMAP mode image over the flooding centred on Grafton NSW on Sunday the 24th of May 2:30 Local Time, This image clearly shows the extent of flooding. Apogee has processed this data to reveal details of the flood boundaries at 3m resolution. These maps will be valuable to Emergency Services and Insurance Companies. This level of detail can be used to check and refine existing flood models.

This image shows the TerraSAR-X Stripmap image as collected, with the dark black area indicating areas of inundation. Water surfaces appear as black on a radar image because the water acts like a mirror reflecting the incident energy away from the sensor. Underneath this image, the same image is shown again with the water mapped in Blue. The dataset and Floodmaping in vector format is available from Apogee.For further information contact Apogee on (08) 83895499