There can be many possible reasons for the formation of water ice on Lunar Surface. Radar signatures help in detecting icy volatiles in permanently shadowed regions (PSR) of lunar poles. The objective of this paper is to indicate the possibility of water ice on the floor of Peary Crater using Chandrayaan-1 Mini-SAR and LRO Mini-RF datasets. For this, both PSR and Non-PSR regions of Peary Crater are examined by deriving three polarization parameters, namely, Circular Polarization Ratio (CPR), Degree of Polarization (DoP or m) and LH-LV relative phase (δ). Scientists believe that CPR>1 indicates presence of water ice over lunar surface, however Arecibo observatory created a controversy by reporting that high values of CPR may also be attributed to surface roughness. A detailed investigation is carried out with these three polarization parameters (CPR, m and δ) on the floor of Peary Crater. The analysis has indicated high Volume Scattering over the interior regions of the floor of Peary Crater as compared to the region lying outside the Peary crater. The exterior region of the crater has shown double bounce scattering with high values of m and low values of CPR. High values of CPR together with low values of m and relative phase of LH-LV (δ) between 0° to 80° has indicated the presence of water ice in the interior region of Peary Crater. It must also be noted that interior of Peary Crater is a Permanently Shadowed Region, this fact further increases the possibility of Water Ice inside the Peary Crater.
