polar studies with sharad...sharad isaac smith sharad workshop, pre-lpsc 2014 friday, may 9, 2014...
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Polar Studies with SHARAD
Isaac SmithSHARAD workshop, pre-LPSC 2014
Friday, May 9, 2014
Polar Studies with SHARAD
QDA_2764501
QDA_2356101
Friday, May 9, 2014
Polar Studies with SHARAD
North pole
South pole
QDA_2764501
QDA_2356101
Friday, May 9, 2014
•North Pole•South Pole
North pole
South pole
Generally more reflectors
More diffuse, reflectors only in certain spots
Friday, May 9, 2014
•North Pole•South Pole
North pole
South pole
Generally more reflectors
More diffuse, reflectors only in certain spots
Bottom often detected
Bottom seldom detectedFriday, May 9, 2014
•North Pole
NPLD base is easily detected, but Basal Unit is diffuse, and no BU bottom
Phillips et al, 2008
519201
Friday, May 9, 2014
Packet / inter packet patternSeen over much of the N pole
•North Pole Phillips et al, 2008
Friday, May 9, 2014
•North Pole
Sub- horizontal layering in lower 2/3Discontinuities in the top 1/3
Phillips et al, 2008
Friday, May 9, 2014
•North Pole
Discontinuities
Smith et al, 2010
QDA_624701
Friday, May 9, 2014
•South Pole
Australe Mensa has few reflectors
Friday, May 9, 2014
•South Pole
Australe Lingula has few reflectors
2759301
Friday, May 9, 2014
Promethia Lingula has abundant layersMilkovich et al, 2009
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
Clutter
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
artifacts
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
0.6 Hz6400 aperture
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
0.6 Hz6400 aperture
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_long_aperture
FPB_standardmore clutter
less clutter
1873701
0.6 Hz6400 aperture
Friday, May 9, 2014
Optimized radar processing
QDA
FPB_standard
FPB_long_aperture
FPB standard has good ionosphere correction
FPB long aperture has more continuous reflectors
QDA has less consistent ionosphere but good continuity
sometimes, things get smeared
less clutterFriday, May 9, 2014
QDA
FPB_standard
FPB_long_aperture
FPB standard has good ionosphere correction
FPB long aperture has more continuous reflectors
QDA has less consistent ionosphere but good continuityless clutter
sometimesQDA sees dimmer reflectors
Friday, May 9, 2014
Moral
Determine which processor is best for each application
Usually good to compare for each case
Friday, May 9, 2014
Spacecraft orientation
2163601
1308201
almost no clutter
very difficult to interpret good orientation
bad orientation
Friday, May 9, 2014