Analysis of the Cosmic Ray Effects on Sentinel-1 SAR Satellite Data
| Autor: | Hakan Mustafa Köksal, Nusret Demir, Ali Kilçik |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Synthetic aperture radar
010504 meteorology & atmospheric sciences space weather Astrophysics::High Energy Astrophysical Phenomena lcsh:Motor vehicles. Aeronautics. Astronautics 0211 other engineering and technologies Aerospace Engineering Cosmic ray 02 engineering and technology Astrophysics::Cosmology and Extragalactic Astrophysics Space weather 01 natural sciences law.invention remote sensing Speckle pattern law Sentinel 1 EO satellite Radar cosmic ray 021101 geological & geomatics engineering 0105 earth and related environmental sciences Remote sensing Environmental science Satellite lcsh:TL1-4050 Noise (radio) Space environment radar SAR |
| Zdroj: | Aerospace, Vol 8, Iss 62, p 62 (2021) Aerospace Volume 8 Issue 3 |
| ISSN: | 2226-4310 |
| Popis: | Ionizing radiation sources such as Solar Energetic Particles and Galactic Cosmic Radiation may cause unexpected errors in imaging and communication systems of satellites in the Space environment, as reported in the previous literature. In this study, the temporal variation of the speckle values on Sentinel 1 satellite images were compared with the cosmic ray intensity/count data, to analyze the effects which may occur in the electromagnetic wave signals or electronic system. Sentinel 1 Synthetic Aperture Radar (SAR) images nearby to the cosmic ray stations and acquired between January 2015 and December 2019 were processed. The median values of the differences between speckle filtered and original image were calculated on Google Earth Engine Platform per month. The monthly median “noise” values were compared with the cosmic ray intensity/count data acquired from the stations. Eight selected stations’ data show that there are significant correlations between cosmic ray intensities and the speckle amounts. The Pearson correlation values vary between 0.62 and 0.78 for the relevant stations. |
| Databáze: | OpenAIRE |
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