Applications of Bistatic Mini-RF SAR Data for Characterization of the Erlanger Crater
["Verma, Nidhi","Mishra, Pooja","Purohit, Neetesh","Jain, Sourabh"]
2023-01-01
期刊论文
(1)
Circular Polarization Ratio (CPR) and bistatic angle (beta), obtained using Arecibo Observatory Planetary Radar, are the two important parameters for determining the presence of water-ice on the lunar surface. In this paper investigation on the possibility of water-ice deposits on the Erlanger crater floor, located in the Permanently Shadowed Regions (PSRs) of the lunar surface has been done using bistatic Mini-RF synthetic aperture radar (SAR) data. In order to better characterize the Erlanger crater, topographic, morphology map, temperature map, PSR map, Lunar Reconnaissance Orbiter Wide Angle Camera (WAC) image, circular polarization ratio (CPR), m-chi decomposition method and bistatic angle (beta) were utilized. We have found that the Erlanger crater and its surroundings comply with the CPR > 1 condition Spudis et al. (Geophysical Research Letter 37, 2010). In the crater floor, it was also observed that parameter beta was very high, which is not a favorable condition for the water-ice regions possible. Furthermore, observations have been obtained using the m-chi decomposition method. Based on a comprehensive analysis from the SAR parameter and m-chi decomposition, the Erlanger crater exhibits characteristics of non-icy regions. Additionally, topography, morphology, temperature, and hydrogen map-based information have been observed. The comprehensive analysis suggested that the Erlanger is a young and fresh crater. From the pixels-based analysis it has been found that the availability of the possible water-ice deposits within the crater rim is very less.
来源平台:JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING