Abstract
During the Mars Exploration Rover (MER) 2003 mission, the twin rovers Spirit and Opportunity have been sending immense amounts of valuable imagery and data to Earth, enabling scientists and engineers to find evidence of water on Mars and to conduct exciting Mars research. This paper presents the results of efforts made at the Mapping and GIS Laboratory of The Ohio State University (OSU) for the development and application of a web-based GIS, the OSU Mars WEBGIS, to support rover localization (i.e., position determination) and topographic mapping activities of the mission. Global and local spatial information and map products of the two landing sites are provided through the WEBGIS. The products include mosaics, orthophotos and digital terrain models (DTMs) derived from orbital and rover images; ground information is supplied as traverse maps, traverse profiles and 3D coordinates, slope maps, and energy index maps; analysis tools are also developed for effective visualization and exploration of the spatial information and products. The system has been successfully applied to the 2003 MER mission and has the potential for future Mars landed missions such as the 2009 Mars Science Laboratory (MSL) mission.
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