CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Surface albedo spectral properties of geologically interesting areas on Titan
Authors
A. Solomonidou Hirtzig, M. Coustenis, A. Bratsolis, E. Le Mouélic, S. Rodriguez, S. Stephan, K. Drossart, P. Sotin, C. Jaumann, R. Brown, R.H. Kyriakopoulos, K. Lopes, R.M.C. Bampasidis, G. Stamatelopoulou-Seymour, K. Moussas, X.
Publication date
1 January 2014
Publisher
Abstract
We investigate the nature and possible formation processes of three areas on Titan's surface which have been suggested as geologically interesting: Hotei Regio, Tui Regio, and Sotra Patera. We also reanalyze the spectral characteristics of the Huygens Landing Site. We apply a statistical Principal Component Analysis (PCA) and a radiative transfer (RT) method on the Visual and Infrared Mapping Spectrometer Datacubes in order to retrieve the surface albedo of distinct spectral units in the near infrared. We have been able to exploit only a subset of the currently available Hotei Regio data, which are, in general, not optimal in terms of geometry for an analysis with a plane-parallel RT code. Our inferred surface albedos present generally higher values from 1 to 2μm and lower ones at 0.94 and in the 2.6-5μm region. The Regions of Interest (RoIs) within Hotei Regio, Tui Regio, and Sotra Patera are always significantly brighter than the surrounding areas. The largest variations are found longward of 2μm and mainly at 5μm. This higher surface albedo with respect to the surrounding area and, in general, the fact that the spectral behavior is different for each of these areas, is probably indicative of diverse chemical compositions and origins. We compare the spectral albedos with some suggested surface candidates on Titan (such as H2O, CO2, and CH4 ices, as well as tholin) and discuss possible chemical composition variations as well as other interpretations. Key Points Study of distinct regions in Titan's Tui and Hotei Regio and Sotra PateraSurface albedos of these regions with an updated radiative transfer codeSpectral behavior of the bright regions and implications for their nature ©2014. American Geophysical Union. All Rights Reserved
Similar works
Full text
Available Versions
Pergamos : Unified Institutional Repository / Digital Library Platform of the National and Kapodistrian University of Athens
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:lib.uoa.gr:uoadl:3070106
Last time updated on 10/02/2023