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Session Proposal: Titan at Equinox: Seasonal Changes on an Ocean World (AGU25)

P044
Titan at Equinox: Seasonal Changes on an Ocean World

Session ID#: 248910

Session Description:
On May 6th 2025 the Saturn system passed through Northern Fall Equinox, and the peak sunlight moved from Titan’s northern to southern hemisphere. Thus commenced a period of expected upheaval and change, when Titan’s atmospheric circulation will slowly begin to reverse direction and may be accompanied by intense methane rainstorms as seen soon after the last equinoctial passage in 2009. This year also marks another major milestone: the 20th year since the Huygens landing on Titan and the return to Earth of its incredible in situ dataset. This topical Titan session solicits novel presentations on all aspects of Titan science, including recent observations, new modeling and laboratory work, and related analog and field work.
Index Terms:

5210 Planetary atmospheres, clouds, and hazes [PLANETARY SCIENCES: ASTROBIOLOGY]
5220 Hydrothermal systems and weathering on other planets [PLANETARY SCIENCES: ASTROBIOLOGY]
5455 Origin and evolution [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
6281 Titan [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
Primary Convener:  Conor A Nixon, NASA Goddard Space Flight Center, Planetary Systems Laboratory, Greenbelt, MD, United States
Conveners:  Kathleen Mandt, NASA Goddard Space Flight Center, Planetary Systems Laboratory, Greenbelt, United States and Samuel Birch, Brown University, Providence, United States
Student/Early Career Convener:  Kendra Farnsworth, University of Maryland Baltimore County, Baltimore, United States
 
Analysis of Cassini/UVIS Scans of Titan’s FUV Airglow During Northern Vernal Equinox (1850886)
Devin Hoover1, Tommi Koskinen1, Panayotis Lavvas2 and Nathan Le Guennic2, (1)University of Arizona, Tucson, United States, (2)Universite de Reims, Reims, France
 
Characterizing Water-soluble vs Water-insoluble Titan Haze Analogs (1872939)
BP Blakley, Johns Hopkins University, Earth & Planetary Sciences, Baltimore, United States, Sarah M Horst, Johns Hopkins University, Baltimore, United States, Cara Pesciotta, Johns Hopkins University, Earth and Planetary Sciences, Baltimore, United States, Joshua Sebree, University of Northern Iowa, Department of Chemistry and Biochemistry, Cedar Falls, United States, Shannon MacKenzie, Johns Hopkins University Applied Physics Laboratory, Laurel, United States, Xinting Yu, University of Texas at San Antonio, San Antonio, United States, Michael J Radke, Johns Hopkins University, Baltimore, MD, United States and Madeline Apple, University of Northern Iowa, Chemistry, Cedar Falls, United States
 
Tropical Cyclone Favorability Between Earth-like and Titan-like regimes (1881060)
David Moore, University of California Los Angeles, Department of Atmospheric & Oceanic Sciences, Los Angeles, CA, United States and Jonathan Mitchell, University of California Los Angeles, Department of Atmospheric & Oceanic Sciences; Department of Earth, Planetary & Space Sciences, Los Angeles, CA, United States
 
Search for complex nitriles in Titan’s stratosphere from space and ground-based data (1938656)
Athena Coustenis1, David Jacquemart2, Panayotis Lavvas3, Thomas K Greathouse4, Therese Encrenaz1, Conor A Nixon5, Rohini Giles4, Pascale Soulard2, Benoit Tremblay2 and Krim Lahouari2, (1)Paris Observatory-PSL, LIRA, Meudon, France, (2)Sorbonne Université, MONARIS, Paris, France, (3)Universite de Reims, Reims, France, (4)Southwest Research Institute, San Antonio, United States, (5)NASA Goddard Space Flight Center, Planetary Systems Laboratory, Greenbelt, MD, United States
 
Surf's Up on Titan: Modeling the seasonality of Wind-Driven Hydrocarbon Waves on Ligeia Mare and Ontario Lacus (Invited) (1952548)
Charlene Detelich, Cornell University, Astronomy and Space Sciences, Ithaca, United States, Una Gaylin Schneck, Massachusetts Institute of Technology, Department of Earth, Atmospheric & Planetary Sciences, Cambridge, United States, Alexander Hayes, Cornell University, Center for Astrophysics and Space Science, Ithaca, United States and Milan Curcic, University of Miami, Rosenstiel School of Marine, Atmospheric, and Earth Science, Miami, United States
 
Titan’s Summer Wind Report: Results from a 2022 Stellar Occultation Observed with Adaptive Optics (Invited) (1982704)
Theresa Marlin, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, United States, Eliot F Young, Southwest Research Institute, Boulder, CO, United States, Katherine de Kleer, California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, Imke De Pater, Univ California Berkeley, Berkeley, United States, Martin Cordiner, NASA Goddard Space Flight Center, Greenbelt, United States; Catholic University of America, Washington, United States, Paul Corlies, Spectral Sciences, Inc., Burlington, United States, Richard Cosentino, Space Telescope Science Institute, Baltimore, United States, Nicholas Lombardo, Yale University, New Haven, United States, Juan Manuel Lora, Yale University, Department of Earth and Planetary Sciences, New Haven, CT, United States, Conor A Nixon, NASA Goddard Space Flight Center, Planetary Systems Laboratory, Greenbelt, MD, United States, Sebastien Rodriguez, Institut de Physique du Globe de Paris, Paris, France and Alexander E Thelen, California Institute of Technology, Pasadena, United States
 
Seasonal variations in sea circulation on Titan driven by flood and drought (1984953)
Ze-Wen Koh, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, Yixiao Zhang, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, United States and Wanying Kang, Massachusetts Institute of Technology, Cambridge, United States
 
"Salt Tectonics" on Titan: Radial Labyrinths as Topographic Expressions of Solid-State Flow (1998423)
Ashley Schoenfeld1, Steven D. Vance2, Rosaly M C Lopes3, Michael Malaska2 and Michael T Bland4, (1)NASA Jet Propulsion Laboratory, Pasadena, United States, (2)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (4)USGS Astrogeology Science Center, Flagstaff, United States
 
The Variability of Clouds on Titan: Observations and the Upcoming Saturnian Equinox (2003254)
Jennifer Hanley, Lowell Observatory, Flagstaff, AZ, United States, Cece Thieberger, Northern Arizona University, Flagstaff, United States, Paul Corlies, Cornell, Department of Astronomy, Ithaca, United States and Joe Llama, Lowell Observatory, Flagstaff, United States
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