Figure 9-1. A merged SPOT multispectral image and an ERS-1 SAR image of the 1993 Mississippi River flood. The 1988 SPOT image provides information about the pre-flooded river course (dark blue) and surrounding land use. Flood limits extracted from the SAR image are represented on the scene as purple-blue areas. These images illustrate the data analysis benefits provided by data blending. (ERS-1 SAR image provided courtesty of RADARSAT International Inc. ©ESA SPOT satellite image provided courtesy of SPOT IMAGE Corporation. ©CNES Ccolor image processed by ITD Space Remote Sensing Center, Stennis Space Center, Mississippi).