%0 Conference Proceedings %T Calibration of MARSIS Surface Echoes %+ Laboratoire de Planétologie de Grenoble (LPG) %+ Jet Propulsion Laboratory (JPL) %+ Dipartimento INFOCOM [Roma] %A Mouginot, Jeremie %A Kofman, Wlodek %A Safaeinili, Ali %A Hérique, Alain %A Plaut, Jeffrey %A Picardi, Giovanni %< avec comité de lecture %( LPI Contribution %B 39th Lunar and Planetary Science Conference %C League City, Texas, United States %V 39 %N 1391 %P 1716 %8 2008-03-10 %D 2008Conference papers %X We present here a method to calibrate surface echoes extracted from MARSIS data. The surface echo amplitude are principaly controlled by ionospheric absorption. This calibration allows us to build the first reflectivity map of martian surface at 4 MHz. %G English %L insu-00361638 %U https://insu.hal.science/insu-00361638 %~ INSU %~ UGA %~ CNRS %~ UNIV-GRENOBLE1 %~ OSUG