Methods and analysis
SAR Polarization: Interpreting VV, VH, HH and HV
Polarization describes the transmitted and received electric-field orientation.
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Satellite reviews
Landsat 1 Review: Measurements, Products and Practical GIS Use
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Methods and analysis
SAR Incidence Angle: Comparing Observations on Compatible Geometry
Radar incidence angle influences the observed scattering and the ground footprint.
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Methods and analysis
SAR Flood Thresholding: Dark Water and the Difficult Exceptions
Smooth open water often produces low backscatter in suitable radar geometry, making intensity useful for flood screening.
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Methods and analysis
SAR Change Ratios: Baseline Selection and Logarithmic Interpretation
A SAR intensity ratio compares calibrated power between observations.
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Methods and analysis
SAR Coherence: What Similar Phase Histories Can and Cannot Tell You
Coherence measures the consistency of complex radar observations over a local estimation support.
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Methods and analysis
InSAR Displacement: Line of Sight Is Not Vertical Motion
InSAR uses phase differences to estimate motion projected along the radar line of sight under a processing model.
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Methods and analysis
Multi-Temporal SAR Statistics for Seasonal Land Monitoring
Temporal SAR statistics summarize scattering variability across acquisitions.
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Methods and analysis
L-Band and C-Band SAR: Comparing Wavelengths Without Oversimplifying Penetration
Radar wavelength affects scattering interactions with vegetation structure and surface roughness.
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Methods and analysis
Radar Texture Features: Window Support and Class Separability
Texture features describe spatial patterns in radar intensity rather than a new physical band.
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Methods and analysis
Combining SAR and Optical Data: Complementarity with Consistent Support
Optical reflectance and radar scattering observe different interactions with the surface.
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Methods and analysis
Brightness Temperature Versus Land Surface Temperature
Brightness temperature is derived from measured radiance under a blackbody-equivalent convention.
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Methods and analysis
Landsat Surface Temperature Scaling: Kelvin, Celsius and QA
The Landsat Collection 2 Level-2 surface-temperature encoding uses a documented conversion to Kelvin.
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