Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry

Details Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusm.p41b..14p&link_type=abstract

American Geophysical Union, Spring Meeting 2007, abstract #P41B-14

Physics

5460 Physical Properties Of Materials, 5464 Remote Sensing

Scientific paper

High resolution radiometry obtained along with the Synthetic Aperture Radar (SAR) imaging of the latest T16, T17, T18, T19, T21, T23, T25 flybys and high-SAR T25 (SAR from approximately 20,000 km altitude) covering Titan's Northern hemisphere at latitude above 75 degree has shown evidence of hydrocarbon lakes and seas on Titan. A radiometric characterization based on calibrated data of selected lakes (with surface greater than 200 square km) and adjacent terrains is presented here by mean correlation of normalized radar cross-section (RCS) vs brightness temperature Tb and prospective models. Results show on average a 3-4 K brightness temperature increase in the lakes with respect to the surrounding terrains and seem somewhat consistent with a Kirchoff dielectric surface whose thermal emission properties are determined by Fresnel coefficients. These results seem to be consistent also with RCS incidence angle independency suggesting smooth surfaces of solid or liquid hydrocarbons (e=1.6-1.9; methane-ethane) or plains of solid non-water-ice materials (solid organics and sludge with dielectric constant of approximately 2.0). The terrains surrounding the lakes define a class more likely represented by a higher dielectric i.e. e=3.1 (water ice), in which more complex behavior is observed with respect to RCS and brightness temperature variations.

Affiliated with

Also associated with

No associations

Rating

Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Titan's northern lakes and terrains from SAR, high-SAR and high-resolution radiometry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1035625