Radar soundings of the subsurface of Mars.
The martian subsurface has been probed to kilometer depths by the Mars Advanced Radar for Subsurface and Ionospheric Sounding instrument aboard the Mars Express orbiter. Signals penetrate the polar layered deposits, probably imaging the base of the deposits. Data from the northern lowlands of Chryse Planitia have revealed a shallowly buried quasi-circular structure about 250 kilometers in diameter that is interpreted to be an impact basin. In addition, a planar reflector associated with the basin structure may indicate the presence of a low-loss deposit that is more than 1 kilometer thick.
Picardi
Giovanni
G
Infocom Department, "La Sapienza" University of Rome, 00184 Rome, Italy.
Plaut
Jeffrey J
JJ
Biccari
Daniela
D
Bombaci
Ornella
O
Calabrese
Diego
D
Cartacci
Marco
M
Cicchetti
Andrea
A
Clifford
Stephen M
SM
Edenhofer
Peter
P
Farrell
William M
WM
Federico
Costanzo
C
Frigeri
Alessandro
A
Gurnett
Donald A
DA
Hagfors
Tor
T
Heggy
Essam
E
Herique
Alain
A
Huff
Richard L
RL
Ivanov
Anton B
AB
Johnson
William T K
WT
Jordan
Rolando L
RL
Kirchner
Donald L
DL
Kofman
Wlodek
W
Leuschen
Carlton J
CJ
Nielsen
Erling
E
Orosei
Roberto
R
Pettinelli
Elena
E
Phillips
Roger J
RJ
Plettemeier
Dirk
D
Safaeinili
Ali
A
Seu
Roberto
R
Stofan
Ellen R
ER
Vannaroni
Giuliano
G
Watters
Thomas R
TR
Zampolini
Enrico
E