Analysis of the Cosmic Ray Effects on Sentinel-1 SAR Satellite Data

Aerospace

Hakan Köksal¹  Ali Kilcik¹  Nusret Demir¹ 

[1] Remote Sensing and GIS Graduate Program, Institute of Science and Technology, Akdeniz University, 07058 Antalya, Turkey;

关键词: EO satellite;    space weather;    cosmic ray;    radar;    SAR;    Sentinel 1;   

DOI  :  10.3390/aerospace8030062

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown