Forest Damage Assessment

Thematic Mapper (TM) is an advanced scanning instrument aboard Landsat 4 & 5 originally developed by NASA, now operated as a commercial remote sensing system. The TM detects radiation reflected and emitted from earth objects such as trees in seven bands of the spectrum. Since each object has its own unique spectral "signature" the TM can distinguish among surface features and generate computer processed imagery, specific features of importance to resources managers.