AGU FALL MEETING
San Francisco, CA, December 9–13, 2013
Abstract Deadline – Tuesday, 6 August 2013
- SESSION: P006. DYNAMIC MARS FROM LONG-TERM OBSERVATIONS
There has been a continual spacecraft presence at Mars since 1997, showing how Mars is changing on decadal timescales. This activity includes planet-encircling dust storms about every 3-4 Mars years and associated surface changes, along with evolution of the polar caps. High-resolution imaging has revealed new impact sites, migrating sand, and a suite of processes on slopes, some of which may involve liquid water. The distribution of shallow ice is much better known, with implications for recent climate change. Manuscripts resulting from these unique, long-term observations will be due at the end of 2013 for a special section of Icarus, so this conference is an ideal time to present the results.
- SESSION: P010. FIRST RESULTS OF C/2012 S1 (ISON): COMET OF THE CENTURY?
Comet C/2102 S1, popularly known as C/ISON, is a sun-grazing comet, originating in the Oort cloud. It is predicted to be the brightest comet of the century and has captured the interest of global professional and amateur astronomers alike. On its initial passage through the inner solar system, C/ISON potentially can become a very bright daytime object as it approaches perihelion in November 2013. Whether the comet lives up to the predictions or not, first results from various world-wide coordinated observing campaigns, including an armada of spacecraft, orbiting telescopes and ground-based professional and amateur facilities will be showcased.
- SESSION P021: POLARIMETRY AS AN INVALUABLE TOOL TO STUDY THE SOLAR SYSTEM AND BEYOND Polarimetry is a powerful tool providing a wealth of information about Earth and planetary atmospheres; solar system objects, exoplanets and search for habitability beyond Earth that cannot be obtained by traditional photometric and spectroscopic observations. This session is open to papers about advances in vector radiative transfer theory (including non-sphericity effects on single scattering); laboratory measurements and instrumentation for the characterization of solar, terrestrial, planetary and exoplanetary atmospheres; atmosphereless bodies; dust; astrobiological markers; and instrumental developments for imaging and spectropolarimeters to be included in ground-based facilities and/or onboard space missions.
Padma A. Yanamandra-Fisher (email@example.com) L. Kolokolova, (firstname.lastname@example.org) A. Levasseur-Regourd (Chantal.Levasseur@aerov.jussieu.fr) Olga Kalashnikova (email@example.com)
- SESSION P022 RAPID ENVIRONMENTAL CHANGE AND THE FATE OF PLANETARY HABITABILITY Rapid environmental change can be used as a scientific bridge, relating astrobiology to earth, planetary, and space sciences in the study of how life may adapt through abrupt climate crises. Recent discoveries inspire us to re-examine our understanding of how rapidly planetary habitats can be redistributed. Past habitable environments on Mars from the Curiosity rover, possible subsurface lakes on Europa, and potentially habitable exoplanets from the Kepler spacecraft continue to expand our definition of the habitable zone. Abstracts on the intertwined aspects of changing habitability, including the complex interactions among astronomical, geological, and climatic forces, on the Earth and beyond, are welcome.
Abstract Deadline – Tuesday, 6 August 2013 https://fallmeeting.agu.org/2013/scientific-program/session-search/sessions/p022-rapid-environmental-change-and-the-fate-of-planetary-habitability/
Conveners: Cynthia Phillips, Franck Marchis, Nathalie Cabrol of the Carl Sagan Center, SETI institute
- SESSION P028: SOLAR SYSTEM DUSTY PLASMA Dust has been identified as an important component in space plasma environments in the Solar System. For example, the presence of macroscopic charge carriers (dust) has been recognized to be capable to offset the traditional plasma charge balance. This session will focus on dusty-plasma studies in various environments, including: laboratory experiments, Noctilucent clouds and polar mesospheric summer echoes, the plume of Saturn’s moon Enceladus, planetary rings, surfaces of airless objects, and cometary environments. The goal of the session is to compare dusty-plasma studies under various conditions to improve our understanding of the processes responsible for dust charging, altering the properties of the plasma, and the emergence of dust collective behavior.