This paper presents a study of the proeessing ehain for iee and glaeier struetures in the holographie SAR tomography (HoloSAR) mode. The algorithm is mainly based on the fast faetorized baek-projeetion (FFBP) to solve a threedimensional spaee using fully polarimetrie data. The motivation of HoloSAR in the eryosphere is mainly driven by reeent investigations that have shown the eapabilities of this mode to obtain 3-D imaging reeonstruetions of volumes over 360 0 at very high resolution. In this regard, a HoloSAR eampaign was eondueted at L-/P-band by DLR's F-SAR sensor in K-Transeet, Greenland. The first experimental results of this study show a polarimetrie analysis of the resulting images of a single eireular ftight, where the are-and eireular patterns of the 2-D images in the (x, y) plane already indicate signifi-