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A Systematic Sensitivity Study on Surface Pixel Shifts in High Spatial Resolution Satellite Images Resulting from
Bo-Cai Gao1, Evan Ward2, Jeffrey Bowles1
1Remote Sensing Division, Code 7230, Naval Research Laboratory, Washington, DC 20375, USA.
Sensors (Basel, Switzerland)
|December 4, 2020
Summary
Atmospheric refraction significantly impacts high-resolution satellite imagery, causing pixel displacement errors of several meters. Modified LOWTRAN7 models accurately predict these shifts, crucial for precise geo-registration and mission planning.
Area of Science:
- Earth and Space Science
- Atmospheric Science
- Remote Sensing
Background:
- Atmospheric refraction affects light propagation from Earth's surface to LEO satellites.
- This effect is negligible for low-resolution sensors but significant for high-resolution imaging (meter-scale pixels).
- Ignoring refraction introduces meter-level geo-registration errors in high-resolution satellite images.
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