Jack Holt UTIG JSG

People


Jack Holt, UTIG Research Scientist Perspective view of northern polar cap of Mars, looking up Chasma BorealeUTIG research scientist, Dr. Jack Holt (email), leads the Mars research efforts at UTIG.  He is a Co-Investigator on SHARAD, the radar sounder on Mars Reconnaissance Orbiter.


Recent presentation.   New paper


PhD student, T. Charles Brothers UT PhD student, T. Charles Brothers (email), is a second year graduate student working on Mars' Planum Boreum. The focus of his work is to uncover the processes responsible for construction of sinuous channels and fan-shaped features proximal to Planum Boreum, and to unveil their link with the ancient Basal Unit sand-rich ice deposit.
Recent presentation.
Depth corrected SHARAD radargram
Depth corrected SHARAD radargram FPA_1130101. The mapped surface represents the top of the Basal Unit, or the base of the North Polar Layered Deposits where appropriate. This radargram is representative of the complex Basal Unit expression beneath the layered deposits on Mars.



PhD student, Isaac Smith UT PhD student, Isaac Smith (email), studies the processes governing spiral trough formation and evolution on the northern polar layered deposits on Mars. He uses radar reflectors to map accumulation patterns To better understand polar ice deposition through time.

Recent presentation
New paper

Mapped discontinuities in radar reflectorsDiscontinuities in radar reflectors describe a genetic relationship to the surface spiral troughs.
undergraduate student, Sarah Christian UT PhD student, Sarah Christian (email), helps with software training as well as data interpretation and analysis. Her current research focuses on determining if SHARAD reflectors can be definitively correlated to individual layers or layer boundaries visible in high resolution imagery.

Recent presentation.
perspective view of subsurface reflectors
The perspective view of subsurface reflectors and an elevation model of high resolution imagery demonstrates how a correlation might be determined (locations shown at left, vertical exaggeration 15:1).

UT undergraduate students, Elisabeth Steel, Thomas Cowan and Mark Moore, are also part of the Mars Research Group.