Penetration property of the L-band SAR and its coherence (JAXA PI-193)

L-band signal has excellent penetration property to the natural targets, i.e., forest and desert, and thus the SAR interferometry in the forest region is made available. Since the penetration property depends on the polarization, the distributed targets in the Amazon cannot be used for the polarimetric calibration source unless the polarization dependence can be clarified. Use of dense forest for the polarimetric calibration was developed and the method clarified the polarization dependence of the penetration property for the uniform forest region. We applied the method and derived the penetration characteristics of the Amazon rainforest.