Guide to Magellan Image
Interpretation
Index i
- A
-
- altimeter/radiometer composite data record
7, 20
- altimetry 19-20, 27, 109
- anaglyph 36, 40
- arachnoids 100, 106
- ARCDR (see altimeter/radiometer composite
data record)
- autocorrelation 53
-
- B
-
- backscatter
- approximation 10
- coefficient 9-10, 81
- Venus average (Muhleman) basic image data
record 7, 9
- BIDR (see basic image data record)
- Bragg model 54
-
- C
-
- caldera 125, 133
- canal) 114, 120
- collapse features 63, 114, 122, 123, 125
- color overlay 27, 115
- combined SAR/non-SAR data 27-29, 115
- complex ridge terrain 100, 104
- compressional features
- mountain belts 97-98
- ridge belts 98, 102
- ridges 98
- cones 111, 117, 127
- coronae 100, 105
- correlation length 53
- crater extended deposits 60-61
- craters
- distinction of 79
- impact 75
- volcanic 122
- cycles of coverage 7, 11-17
-
- D
-
- data
- altimetry 19
- availability 141-143
- collection modes 2-3, 4
- non-SAR 19
- radiometry 25-26
- reflectivity, rms slope 20, 25
- SAR image 7
- stereo 34-35
- storage formats 9
- DEM (see digital elevation model)
- depression angle 45
- dielectric constant 26, 28, 55, 110-112, 114
- digital elevation model 36-37
- domes 41, 67, 72, 117, 122-123,129
- dunes 58, 60, 65-68
-
- E
-
- echo profile (template) 20, 125
- ejecta 61, 75, 81
- emissivity 25-26, 28, 30, 83
- eolian features 57
- crater extended deposits 60-61
- dunes 58, 60, 65-68
- wind streaks 57-58
- yardangs 60
- extensional features graben/troughs
93, 94-95
- rift (valley) 97
- scarps/normal faults 96-97
-
- F
-
- facet model 54
- footprint
- altimeter 2, 19-20, 25
- radiometer 20, 26
- Fresnel reflectivity 20, 25, 55
-
- G
-
- global data records 20, 21-24
- graben 93, 94-95
- gravity observations 13
- GxDR (see global data records)
-
- H
-
- Hagfors model 54
- Hagfors scattering function 25
- halos 58, 75-76, 81
-
- I
-
- image
- brightness 11, 27, 109-11
- data records 7-9
- distortion 33, 45
- swath dimensions 7
- imaging geometry 45-48, 86
- left-looking 11-13, 14, 16-17
- right-looking 11, 15
- impact craters
- distinction of origin 79
- extended deposits 60-61
- general characteristics 75
- halos 75-76, 81
- Magellan results 76-78
- modification 85-86
- morphological types 76-78
- outflow deposits 65, 81
- parabolic features 26, 60-61, 70,
- radiophysical properties 79, 82-83
- slope/depth measurements 81
- splotches 81, 85, 87
- Venera results 76
- incidence angle 45-46
- surface roughness relations 48-51
- variation with latitude 36-37
-
- L
-
- lava channels 114-115, 116
- canali 114, 120
- rifle 114, 121
- lavaflows 61, 109-115, 116, 118-119
- layover 33, 47, 49
- look angle 45 48
- look direction (azimuth) 48, 51-52
- looks, number of 9
-
- M
-
- Magellan
- extended mission 1, 33
- mapping orbit profile 3, 5
- mission requirements 1
- modes of data collection 2-3, 4
- radar sensor 2-3
- scientific objectives 1
- stereo data 34-35
- system and orbit characteristics
3
- mapping
- cycles 1, 7, 11, 13
- geologic 76-77, 84, 135-139
- orbit profile 3, 5
- radar units 113, 119, 137-139
- stereo 86
- topographic 37
- mass movements 63
- MIDR (see mosaicked image data
record)
- model
- backscatter approximation 10
- Bragg 54
- digital elevation 36-37
- facet 54
- Hagfors 54
- Muhleman 9-10, 54
- scattering 54
- small perturbation 54
- stationary-phase approximation
54
- "topo" 33
- mosaicked image data record 7, 9
- mosaicking 7, 9
- mountain belts 97-98
- Muhleman model 9-10, 54
-
- N
-
- non-SAR data 19
- applications 27-30, 79-81, 110
-
- O
-
- orbit profile 3, 5
- outflow deposits 65, 81
-
- P
-
- parabolic features 26, 60-61, 70, 75
- parallax measurement 34-36
- pixel
- DN-to-dB conversion 10
- resolution 9
- values 9, 10
- plains, volcanic 109
- power spectrum 53-55
- pre-Magellan observations 1
-
- R
-
- radar shadowing 47-49
- radar/surface interactions dielectric
constant 26, 28, 55, 110-112, 114
- imaging geometry 45-48, 86
- roughness 48-54
- scattering models 54-55
- radiometry 25-26
- Rayleigh criterion 51, 55
- reflectivity, rms slope 20, 25
- relief displacement 33-35
- resolution
- gravity 13
- pixel 9
- radiometer 2
- SAR image 9
- ridge belts 98, 102
- ridges 98
- rift (valley) 85-86, 88, 97
- rifle 114, 121
- rms height 51
- rms slope 20, 25
- roughness 48-54
-
- S
-
- SAR image data 7
- scattering models 54-55
- slope/depth measurements 81
- small perturbation model 54
- small shields 117
- splotches 81, 85, 87
- stereo imaging 33-34, 86-88
- applications 35-36
- surface modification processes
- at high elevations 62-63
- eolian features 57-61
- mass movements 63
- of lava flows 61-62
-
- T
-
- tectonic features 93
- complex 100-101
- compressional 97-100
- extensional 93-97
- template matching 20, 125
- tesserae (see complex ridge
terrain)
- topography
- color coding 27-28
- contouring 27-28, 81-82
- measurement 34-36, 81, 85
- three-dimensional perspective 27, 29, 125,132
- troughs 93, 94-95
-
- V
-
- volcanic features 109
- caldera 125, 133
- canali 114, 120
- collapse 63, 114, 122, 123, 125
- crater distinction 79
- lava channels 114-115, 116
- lava flows 61,109-115, 116, 118-119
- plains 109
- rifle 114, 121
- volcanoes
- cones 111, 117, 127
- domes 41, 67, 72, 117, 122-123, 129
- intermediate large 123-125
- small domes 117
- small shields 117
-
- W
-
- wind streaks 57-58
-
- Y
-
- yardangs 60
-
-
i Citations to figures are noted in italics.
