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SAR Doppler Tomography
GRI 0β100 Continuous
Sentinel-1 multi-temporal radar stack inversion. Orthorectified (Copernicus 30m GLO-30). Standardized continuous survey grid.
v0.0.2
© 2026 Remi Bastier • All Rights Reserved
π― Anomalies β Giza
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Active Cells:
TILE(+0,+0)
300 kmΓΒ²
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π‘ Type 3
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π°οΈ Satellite
ποΈ 3D Terrain
πΊοΈ Contours
β‘ Mode 1: Continuous GRI Heatmap
β‘ Mode 2: 4-Class Discrete Geomorphology
β‘ Mode 3: InSAR Coherence (Phase Stability)
β‘ Mode 4: Dual-Pol CPR (Depolarization)
β‘ Mode 5: False-Color SAR RGB Composite
Blend:
80%
Radar Overlays
π Survey Grid
π Blind (100)
ποΈ Benchmark Monuments (35)
π Superimpose All (135)
All Corridor
Giza
Zawyet-Abusir
Saqqara
Dahshur
Mazghuna
Lisht
Meidum
Hawara
Widan / Qasr el-Sagha
GRI [0 β 100] Radar Heatmap
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0 (Shadow)
30 (Silt)
64 (Bedrock)
78 (Megalith)
100 (Cavity)
[88 β 100] Subsurface Resonant Cavities
Infrasonic acoustic resonance & subterranean void response
[74 β 86] Megalithic Masonry & High Structures
High specular dielectric backscatter (Οβ β₯ 39 dB)
[58 β 73] Native Limestone Bedrock
Competent Mokattam formation plateau (Οβ β 31 β 38 dB)
[45 β 57] Agricultural Soils & Floodplain
Cultivated Nile floodplain sediments (Οβ β 23 β 30 dB)
[24 β 44] Ancient Silt Deposits & Canals
Saturated alluvium / canal depressions in floodplain
[0 - 28] Radar Shadow & Low Backscatter (Extinction)
Geometric radar shadow behind relief, smooth surfaces, or signal attenuation
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Type 1: Subsurface Resonant Cavities
Infrasonic micro-motion acoustic cavity resonance (0.50 β€ dm β€ 3.20, h β₯ 24m)
Type 2: Subsurface Saturated Silt & Canals
Waterlogged clay-silt deposits with high fluid phase damping (h < 24m)
Type 3: Megaliths & Bedrock Peaks
High-reflectivity masonry & limestone bedrock peaks (Οβ β₯ 38.5 dB)
Type 4: Open Surface Water
Nile River channel & water bodies (Copernicus Water Mask)
0.0 (Shadow)
0.30 (Alluvium)
0.55 (Dry Bedrock)
0.75 (Megalith)
1.0 (Specular)
[0.75 β 1.00] Specular Monoliths & Megaliths
Ultra-stable monolithic limestone core & casing masonry (ΓΒ³ β₯ 0.75)
[0.55 β 0.74] Stable Competent Bedrock
Native dry Mokattam limestone plateau & escarpments
[0.30 β 0.54] Arid Sand & Desert Soils
Compacted desert reg & ancient wadi sediment matrix
[0.00 β 0.29] Shifting Alluvium & Water
Irrigated cultivation, moist clay slurry & open water (full decorrelation)
-22 dB (Smooth)
-14 dB (Plateau)
-10 dB (Rubble)
-6 dB (Slurry)
-2 dB (Extreme)
[β₯ -6 dB] Severe Volumetric Depolarization
Porous mudbrick slurry, collapsed masonry rubble & dense foliage
[-10 to -6 dB] Porous Rubble & Fractured Debris
Decomposed brick, fractured limestone rubble & talus deposits
[-14 to -10 dB] Natural Bedrock & Desert Reg
Standard weathered desert plateau & limestone gravel matrix
[β€ -18 dB] Planar Specular Bedrock
Smooth limestone pavements & specular water surfaces
Red: VV Backscatter (Dielectric / Megaliths)
Specular return from vertical walls, pyramid casing & dense masonry
Green: VH Backscatter (Depolarization / Rubble)
Cross-polar volume scattering from porous mudbrick slurry & vegetation
Blue: InSAR Coherence (Phase Stability)
Multi-temporal phase stability of immovable monolithic limestone bedrock
Composite Combinations: Yellow / Cyan / Purple
Yellow = High VV+VH (Dense Rubble Masonry); Purple = Stable Bedrock