GLISTIN-A Announcement

Dr. Delwyn Moller of Remote Sensing Solutions (RSS) was recently selected under a NASA Research Opportunities in Space and Earth Sciences solicitation as Principal Investigator for system upgrades to the airborne Glacier and Ice Surface Topography Interferometer (GLISTIN-A), developed for swath-mapping of ice-surface topography.

With the capability of mapping high-precision, high resolution ice-surface topography with a 10+ km swath, GLISTIN-A will provide unprecedented detailed coverage of the highly dynamic glaciers and coastal regions of the ice-sheets. The platform of operation is currently the NASA GIII.

The image on the right was generated from data collected on the second Ka-band engineering test flight on March 16, 2009. The aircraft flew on a heading of 180° and imaged from San Dimas, CA down to Irvine at an altitude of 6000 m. The swath width is about 5.5 km and the data was processed to a height map with posting of 3 meters. The height precision (as derived from the interferometric correlation) varies from about 30 cm in the near range to 3 m in the far range. Image credit: Scott Hensley, JPL.

More information on the GLISTIN-A system can be found in Moller, D.; Hensley, S.; Sadowy, G. A.; Fisher, C. D.; Michel, T.; Zawadzki, M.; Rignot, E.; , "The Glacier and Land Ice Surface Topography Interferometer: An Airborne Proof-of-Concept Demonstration of High-Precision Ka-Band Single-Pass Elevation Mapping," Geoscience and Remote Sensing, IEEE Transactions on , vol.PP, no.99, pp.1-16, 0 doi: 10.1109/TGRS.2010.2057254 URL: and

Or visit the GLISTIN-A page on the Remote Sensing Solutions website.

Picture of NASA Gulfstream III with pod configured for Ka-band interferometry. Image on right shows close-up with details of the two antennas.
Photo credit: Chun-lun (Ernie) Chuang, JPL.