Äîêóìåíò âçÿò èç êýøà ïîèñêîâîé ìàøèíû. Àäðåñ îðèãèíàëüíîãî äîêóìåíòà : http://www.naic.edu/vscience/schedule/tpfiles/CampbelltagR2241tp.ps Äàòà èçìåíåíèÿ: Tue Aug 15 22:43:52 2006 Äàòà èíäåêñèðîâàíèÿ: Sat Dec 22 23:20:55 2007 Êîäèðîâêà: Ïîèñêîâûå ñëîâà: regolith

Proposal Identification No.: R2241 Date Received: 2006­Jun­01 10:36:19
Technical Page
Proposal Type: Regular
General Category: Planetary Radar
Sub­Category: Radar
Observation Category: Solar System
Total Time Requested: 12 Hours
Minimum Useful Time:
Proposal Title: High­Resolution Radar Studies of the Moon's Mega­Regolith
ABSTRACT:
The Moon's surface is exposed to constant bombardment by meteorites, and over time these impacts create a
mixed layer of pulverized dust and rock fragments called the regolith. In the relatively younger basalt flows that fill
ancient basin floors, the regolith is a few meters thick. In older highlands terrain, the regolith is more complex,
varying widely in thickness and in block size distribution. These changes across the highlands are linked with
proximity to major basin­forming impacts, which redistribute even kilometer­scale blocks over great distances. The
highland ``mega­regolith'' is thus up to several km thick, comprised of small to very large fragments of excavated
crust. Our goal is to understand spatial variations across the highlands through radar studies of the physical
characteristics of debris from 1­km to 100's­km craters that probe the upper few meters to km of the mega­regolith.
Name Institution E­mail Phone Student
Bruce A Campbell Smithsonian Institu­
tion
campbellb@si.edu 202 633 2472 no
Remote Observing Request
X Observer will travel to AO
Remote Observing
In Absentia (instructions to oper­
ator)
Instrument Setup
S­Band radar 430 CH receiver 430 CH radar S­band receiver
Atmospheric Observation Instruments:
Special Equipment or setup: none
1

RFI Considerations
Frequency Ranges Planned
2