Using the Shallow
Radar instrument aboard NASA's Mars Reconnaissance Orbiter, Holt was able to peek beneath the ice's surface for clues; in particular, the radar could pick out differences in electrical reflectivity between overlying layers, showing how the ice built up over
Radar instrument aboard NASA's Mars Reconnaissance Orbiter, Holt was able to peek beneath the ice's surface for clues;
in particular, the
radar could pick out differences in electrical reflectivity between overlying layers, showing how the ice built up over
radar could pick out differences
in electrical
reflectivity between overlying layers, showing how the ice built up over time.
The main purpose of this
radar is to determine the first three Doppler moments (
reflectivity, vertical velocity, and spectral width) at a range resolution of approximately 30 meters from near - ground to nearly 20 km
in altitude.
Particle probe measurements
in the cirrus clouds are used to compute ice water content and
radar reflectivity averages
in short time periods (25 — 30 s).