Biography & lecturer abstract
Han Li was born in Chengdu, Sichuan Province, China (1977). She studied seismology at Peking University and obtained her Ph.D. in planetary science from Northwestern University in Evanston, Illinois (USA) in 2005. After three years of teaching in the United States, she joined the Chinese Academy of Sciences (CAS) in 2008 and has worked at the Graduate University of CAS and the National Astronomical Observatories of China (NAOC, CAS). Her main research area is focused on endogenic and exogenic processes that shape the morphology of terrestrial surfaces. In particular, she is interested in how geomorphological records can be used to decipher past climate history on Mars. In addition, Dr. Li is also involved in the planning of future missions to the Moon and Mars carried out by CAS. She lives in Beijing and enjoys traveling, movies, and reading.
Lecture: Ice-related morphological features on Mars
Morphological studies based on images taken by Mars orbiters as early as the Vikings have suggested that underground ice may exist extensively in martian mid-to-high latitudes of both hemispheres. Examples of ice-related morphological features include lobate debris aprons (LDAs), concentric crater fill, lineated valley fill, and viscous flow features. Subsurface radar sounding data collected by SHARAD (the Shallow Subsurface Radar) on MRO (Mars Reconnaissance Orbiter) strongly suggest the existence of large quantities of water ice in the formation and evolution of LDAs in the eastern Hellas region and at Deuteronilus Mensae in the Northern hemisphere dichotomy boundary. The morphological distribution of LDAs on Mars as well as theories regarding the role of ice in their evolution, will be addressed during this talk.