Conférence de James Head sur le changement climatique du Mars où il aborde les questions suivantes :
- What are present Mars climate conditions?
- How do they compare to Earth?
- Is the current Mars climate typical or anomalous?
- What controls and drives the climate history on Mars?
- Are there spin axis/orbital parameter (Milankovitch) cycles?
- Are there interactions between volcanism and climate?
Cursus :
Professor Jim Head is the Louis and Elizabeth Scherck Distinguished
Professor of Geological Sciences. He came to Brown University in 1973,
following his work with the NASA Apollo program, in which he analyzed
potential landing sites, studied returned lunar samples and data, and
provided training for the Apollo astronauts. His current research
centers on the study of the processes that form and modify the surfaces,
crusts and lithospheres of planets, how these processes vary with time,
and how such processes interact to produce the historical record
preserved on the planets. Comparative planetology, the themes of
planetary evolution, and application of these to the study of early
Earth history are also of interest. He has followed up his research on
volcanism, tectonism and glaciation with field studies on active
volcanoes in Hawaii and at Mount St. Helens, on volcanic deposits on the
seafloor with three deep sea submersible dives, and during four field
seasons in the Antarctic Dry Valleys.
Since 1984, Dr. Head
convenes the Vernadsky Institute/Brown University microsymposia, held
twice yearly in Moscow and Houston. He has served as an investigator
with NASA and Russian Space Missions, such as the Soviet Venera 15/16
and Phobos missions, and the US Magellan (Venus), Galileo (Jupiter),
Mars Surveyor, Russian Mars 1996, and Space Shuttle missions.
Dr.
Head is presently a co-investigator for the NASA MESSENGER mission to
Mercury and Moon Mineralogy Mapper (M3), as well as the European Space
Agency’s Mars Express Mission.
Dernière mise à jour : 10/07/2017
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@ 2011 ENS