TITAN’S GROUND REFLECTANCE RETRIEVAL FROM CASSINI-VIMS DATA TAKEN DURING THE JULY 2ND, 2004 FLY-BY AT 2 AM UT

被引：0

作者：

A. Adriani

M. L. Moriconi

G. L. Liberti

A. Gardini

R. Orosei

E. D’Aversa

G. Filacchione

A. Coradini

机构：

[1] INAF – Istituto di Fisica dello Spazio Interplanetario,

[2] CNR – Istituto di Scienza dell’Atmosfera e del Clima,undefined

[3] INAF – Istituto di Astrofisica Spaziale e Fisica Cosmica,undefined

来源：

Earth, Moon, and Planets | 2005年 / 96卷

关键词：

Titan; atmosphere; surface albedo; Cassini; radiative transfer calculation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An attempt to evaluate the preliminary values of the Titan's surface albedo at 2 μm from the first Cassini-VIMS observations of the moon is presented. The methodology is based on the application of radiative transfer calculations and a microphysical model of the Titan atmosphere based on fractal aerosol. As a first guess, the surface has been considered flat and lambertian. The results are presented as a function of the geographical coordinates associated to the image pixels. The libRadtran package, using the radiative transfer equation solver DISORT 2.0, has been applied for the calculations. A test run to evaluate the model performances, using ground based observations of Titan as reference in the range of wavelengths 0.3-1.0 μm, has been carried out.The retrieved values of the surface albedo range between 0.03 and 0.22.

引用

页码：109 / 117

页数：8