Titan Aeronomy and Climate

Motivations

The observations of the Cassini spacecraft since 2004 revealed that Titan, the largest moon of Saturn, has an active climate cycle with a cloud cover related to the large scale atmospheric circulation, lakes of methane and hyrdrocarbons with variable depth, a dried fluvial system witnessing a past wetter climate, dunes, and deep changes in the weather and atmospheric structure as Titan went through the North Spring equinox. Moreover, the upper atmosphere is now considered the cradle of complex chemistry leading to aerosol formation, as well as the manifestation place of atmospheric waves. However, as the Cassini mission comes to its end, many fundamental questions remain unresolved...

The objective of the workshop is to bring together international experts from different fields of Titan's research in order to have an overview of the current understanding, and to determine the remaining salient scientific issues and the actions that could be implemented to address them. PhD students and post-doc researchers are welcomed to present their studies. This conference aims to be a brainstorming event leaving abundant time for discussion during oral and poster presentations.

Main Topics

Atmospheric seasonal cycles and coupling with dynamics.
Composition and photochemistry of the atmosphere.
Formation and evolution of aerosols and their role in the atmosphere.
Spectroscopy, optical properties, and radiative transfer modeling of the atmosphere.
Surface composition, liquid reservoirs and interaction with atmosphere.
Evolution of the atmosphere.
Titan after Cassini, open questions and the path forward.

Agenda

~~Opening of the abstract submission:~~	~~December 1, 2015~~
~~Abstract deadline for oral presentations:~~	~~April 1, 2016~~
~~Abstract deadline for poster presentations:~~	~~May 21, 2016~~
~~Early registration fees deadline:~~	~~May 22, 2016~~
~~Late registration/social event fees deadline:~~	~~June 22, 2016~~
Workshop:	June 27-29, 2016

Scientific Organizing Committee

B. Bézard	LESIA	Obs. Paris-Meudon	FR
P. Lavvas	GSMA	Univ. Reims Champagne-Ardenne	FR
P. Rannou	GSMA	Univ. Reims Champagne-Ardenne	FR
C. Sotin	JPL	NASA/Caltech	USA
D. Strobel	Dep. of Earth & Planetary Sc.	J. Hopkin Univ.	USA
R. West	JPL	NASA/Caltech	USA
R. Yelle	LPL	Univ. of Arizona	USA

Local Organizing Committee (GSMA)

D. Cordier

T. Cours

P. Lavvas

B. Poty

P. Rannou

B. Seignovert

Financial and Logistics Support

Session schedule

Monday 27

09:00

Welcome and general information

Atmospheric structure and aeronomy

09:15	Strobel et al.	Comparative Planetary Nitorgen Atmospheres: Titan, Triton and Pluto
09:35	Feofilov et al.	Non-LTE diagnostics of infrared radiation of Titan's atmosphere
09:55	Coates et al.	Titan's plasma interaction: photoelectrons and negative ions
10:15	Snowden et al.	Explaining the high electron density observed during T57
Coffee break
11:15	Royer et al.	Enhanced airglow at Titan
11:35	Crary	A survey of heavy ions in Titan's ionosphere
11:55	Dubois	Chemistry of neutral species in Titan's ionosphere: an experimental approach
Lunch
14:00	Desai et al.	Cassini CAPS-ELS observations of carbon-based anions and aerosol growth in Titan's ionosphere
14:20	Discussion

Aerosol Formation and Properties

15:00	Vuitton et al.	Titan's Oxygen Chemistry and its Impact on Haze Formation
Coffee break
16:00	Tigrine et al.	VUV photodynamics of free tholins nanoparticles investigated by imaging Angle-Resolved Photoemission with the Synchrotron Radiation
16:20	Gautier et al.	Mass spectrometry investigation of Titan aerosols analogs formed with traces of aromatic compounds
16:40	Carrasco et al.	Nitrogen fractionation in Titan's aerosols

17:00 - Poster session

Tuesday 28

09:00	Lavvas et al.	Aerosol properties in Titan's upper atmosphere
09:20	Seignovert et al.	Aerosols particles properties in Titan's Detached Haze Layer
09:40	West et al.	Cassini ISS Observations of Titan's Haze 2012-2016
10:00	Fabiano et al.	Are Titan aerosols really tholins? Constraining the aerosol extinction coefficient from VIMS in the 4 to 5 µm range
Coffee break
11:00	Maltagliati et al.	A new description of Titan's aerosol optical properties from the analysis of VIMS Emission Phase Function observations
11:20	Rannou et al.	Titan's aerosol optical properties with VIMS observations at the limb
11:40	Sotin et al.	Titan's haze as seen by VIMS during solar occultation observations
Lunch
13:45	Discussion

Composition and Seasonal Cycle

14:25	Cordiner	Detection and mapping of organic molecules in Titan's atmosphere using ALMA
14:45	Molter et al.	Isotopic Ratios in Nitrile Species on Titan using ALMA
Coffee break
15:45	Jolly	Search for minor molecular compounds in Titan's atmosphere using infrared spectroscopy
16:05	Yelle et al.	Coupled, Nitrogen, Oxygen, Carbon and Ion Chemistry on Titan
16:25	Flasar et al.	Titan's Temperature and Zonal Wind Structure and Seasonal Behavior
16:45	Coustenis et al.	Cassini/CIRS results on Titan's atmospheric properties changes since the northern equinox

18:00 - Social Event

Wednesday 29

09:00	Vinatier et al.	Seasonal variations in Titan's stratosphere observed with Cassini/CIRS after the northern spring equinox
09:20	Sylvestre et al.	Seasonal variations of C₄H₂, C₂N₂ and C₃H₄ in Titans lower stratosphere
09:40	Teanby et al.	Post-equinox evolution of Titan's south-polar atmosphere
10:00	Bjoraker et al.	The Abundance of C₆H₆ and HC₃N over Titan's South Pole as winter approaches
Coffee break
11:00	Jennings	Seasonal Evolution of Titan's South Pole 220cm^-1 Cloud
11:20	Discussion
Lunch

CH₄ Cycle and Climate

13:45	Young et al.	Mapping Methane in Titan's Atmosphere near Titan's Surface
14:05	Lora et al.	Constraining and Interpreting Titan's Methane Hydrologic Cycle
14:25	Barth	Cloud formation in Titan's Stratosphere
14:45	Rafkin et al.	Towards More Realistic Simulation of Air-Sea Interaction over Lakes on Titan
Coffee break
15:45	Lorenz	How often does it rain on Titan? (And what happens when it does?)
16:05	Tokano	Likelihood of nitrogen condensation in Titan's present atmosphere
16:25	Charnay et al.	Paleoclimates on Titan: the case of a pure nitrogen atmosphere
16:45	Discussion

19:00 - Public conference

Posters

Poster 1	Alkadrou et al.	Global frequency and intensity analysis of the v10/v7/v4/v12 band system of ¹²C₂H₄ at 10 µm using the D2h Top Data System
Poster 2	Rey et al.	Ab initio calculations of low temperature hydrocarbon spectra for astrophysics: application to the modeling of methane absorption in the Titan atmosphere in a wide IR range
Poster 3	Biennier et al.	Anion-molecule reactions in Titan's atmsophere: a laboratory perspective
Poster 4	Biennier et al.	Investigating the first steps of hydrocarbon condensation in the laboratory and in Titan's atmosphere
Poster 5	Ma et al.	Day to night ion transport flow and its variation with SLT
Poster 6	Mathé et al.	Influence of traces elements in the organic chemistry of upper atmosphere of Titan

Poster 7	Cordier et al.	Could PAH or HAC explain the Titan's stratosphere absorption around 3.4µm revealed by solar occultations?
Poster 8	Moreno et al.	ALMA observations of Titan : Vertical and spatial distributions of nitriles
Poster 9	Serigano et al.	Isotopic Ratios of Carbon and Oxygen in Titan's CO using ALMA
Poster 10	Snowden et al.	Explaining the high electron density observed during T57
Poster 11	Tigrine et al.	Simulating the VUV photochemistry in the upper atmosphere of Titan
Poster 12	Thelen et al.	Nitrile and Hydrocarbon Spatial Abundance Variations in Titan's Atmosphere

Poster 13	Maltagliati et al.	Large-scale simultaneous mapping of Titan's aerosol opacity and surface albedo by a new massive inversion method of Cassini/VIMS data
Poster 14	Mitri et al.	Explorer of Enceladus and Titan (E2T)
Poster 15	Hanley et al.	Exploring the Composition of Titan's Lakes through Laboratory Experiments
Poster 16	Tokano	Eclipse-induced changes of Titan's meteorology at equinox
Poster 17	Charnay et al.	Methane storms as a driver of Titan's dune orientation.

Outreach

Exploration of Extra-terrestrial Oceans

A public conference in French will be given by C. Sotin on Wednesday 29

Location:

Auditorium de la Villa Douce,
Université de Reims Champagne-Ardenne,
9 Boulevard de la paix, 51100 REIMS

Map
Info

About the workshop

The workshop will take place into l'Hotel de la Paix, in the centre of Reims. The Place d'Erlon and the streets surrounding the hotel belong to the old part of the city. Many hotels or restaurants can be found at walking distance, and at moderate prices.

Registration fee: ~~100€ (Early deadline)~~ or ~~160€ (Late deadline)~~ includes the attendance to the workshop, the coffee breaks and the lunchs.

Hotel de la Paix website

Reims

Reims, a city in northern France, is perhaps best known for its cathedral, where generations of French kings were crowned.
Reims, the home of Champagne (the most celebrated and celebratory wine in the world), is the main city of the Champagne area.There stands one of the most beautiful buildings of the Middle Ages in Europe, one that is filled with history: almost all French kings were crowned there for about 1,000 years. Most of the old houses were destroyed during World War I, and the city was extensively rebuilt in the 1920's in an Art Deco style.
Reims, Épernay and Ay are the main places of champagne production. Many of the largest champagne producing houses, referred to as les grandes marques, have their head office in Reims. Most are open for champagne tasting and tours by appointment only. Champagne is aged in the many chalk caves and tunnels, some originating in the Roman period, located deep inside the ground.
The city centre is fairly small and easily walkable, with many streets for pedestrians only, mainly in the shopping area.

Wikitravel 2016

Learn more

Arriving

From Roissy CDG Airport:

Take the TGV train from Roissy CDG airport to Champagne Ardennes TGV station.
Take the train shuttle from Champagne Ardennes TGV station to Reims Gare station or the tramway B to Vesle.

From Paris:

Take the TGV train from Paris Est to Reims Gare station or to Champagne Ardennes TGV station.
From Champagne Ardennes TGV, take the train shuttle to Reims Gare station or the tramway B to Vesle.

Hotel de la Paix:

400 m away from the Reims Gare station
Surrounding tramway stations: Gare Centre, Langlet, Opéra, Vesle.

Registration And Abstract

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Titan Aeronomy & Climate - Workshop