Universität zu Köln

Lorenz, Ralph D., Kirk, Randolph L., Hayes, Alexander G., Anderson, Yanhua Z., Lunine, Jonathan I., Tokano, Tetsuya, Turtle, Elizabeth P., Malaska, Michael J., Soderblom, Jason M., Lucas, Antoine ORCID: 0000-0003-2192-4416, Karatekin, Ozgur and Wall, Stephen D. (2014). A radar map of Titan Seas: Tidal dissipation and ocean mixing through the throat of Kraken. Icarus, 237. S. 9 - 16. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1090-2643

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Abstract

We present a radar map of the Titan's seas, with bathymetry estimated as proportional to distance from the nearest shore. This naive analytic bathymetry, scaled to a recent radar sounding of Ligeia Mare, suggests a total liquid volume of 32,000 km(3), at the low end of estimates made in 2008 when mapping coverage was incomplete. We note that Kraken Mare has two principal basins, separated by a narrow (similar to 17 km wide, similar to 40 km long) strait we refer to as the 'throat'. Tidal currents in this strait may be dramatic (similar to 0.5 m/s), generating observable effects such as dynamic topography, whirlpools, and acoustic noise, much like tidal races on Earth such as the Corryvreckan off Scotland. If tidal flow through this strait is the dominant mixing process, the two basins take 20 Earth years to exchange their liquid inventory. Thus compositional differences over seasonal timescales may exist, but the composition of solutes (and thus evaporites) over Croll-Milankovich timescales should be homogenized. (c) 2014 Elsevier Inc. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Lorenz, Ralph D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kirk, Randolph L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hayes, Alexander G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Anderson, Yanhua Z. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lunine, Jonathan I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Tokano, Tetsuya UNSPECIFIED UNSPECIFIED UNSPECIFIED Turtle, Elizabeth P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Malaska, Michael J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Soderblom, Jason M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lucas, Antoine UNSPECIFIED orcid.org/0000-0003-2192-4416 UNSPECIFIED Karatekin, Ozgur UNSPECIFIED UNSPECIFIED UNSPECIFIED Wall, Stephen D. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-433936
DOI:	10.1016/j.icarus.2014.04.005
Journal or Publication Title:	Icarus
Volume:	237
Page Range:	S. 9 - 16
Date:	2014
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1090-2643
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language HYDROCARBON LAKES; ONTARIO LACUS; LIGEIA MARE; MODELS; ETHANE; WAVES Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43393