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Spectroscopic Remote Sensing Study of Mars and the Moon: From Thermal Infrared to Far-Ultraviolet 火星和月球光谱遥感:从热红外到远紫外

  日期:2017-5-12 16:31:13    浏览次数:


摘要:Reflectance spectroscopy is a powerful tool for remote sensing study of the terrestrial planets in solar system. From thermal infrared to far-ultraviolet, reflectance spectroscopy has been widely used to study the mineralogy of Mars and the Moon and thus to understand their surface processes and evolution histories. In this talk, two spectrometers for Mars, ESA's Mars Express OMEGA and NASA's MRO CRISM, used to identify ancient records of environmental change on Mars because of its sensitivity to minerals that represent water–rock interaction will be introduced. The methods on how to use DISORT radiative transfer model to do atmospheric corrections of the spectra from the two spectrometers and how to perform spectral unmixing analysis on atmospherically corrected reflectance spectra will be presented. Two areas on Mars 

were investigated using the methods we developed, and the inferred aqueous history on Mars will be discussed. Finally, a far-UV spectrograph named the Lyman Alpha Mapping Project (LAMP) onboard NASA's Lunar Reconnaissance Orbiter (LRO) will be introduced. The major scientific discoveries in the study of the Moon by the LAMP instrument will be briefly reviewed, and the initial results from photometrical modeling of the Moon in far-UV wavelengths will be also presented. 


报告人简介:Yang Liu is a postdoctoral researcher at Southwest Research Institute, USA. He is a member of the science team for the NASA Lunar Reconnaissance Orbiter Lyman Alpha Mapping Project, and was a student member of ESA Mars Express OMEGA and NASA Mars Reconnaissance Orbiter CRISM instruments. His research interests are planetary surface processes, remote sensing, and reflectance spectroscopy. He received a bachelor’s degree in physics from Shandong University (Weihai), and Ph.D. degree in Earth and Planetary Sciences from Washington University in St. Louis.