The Copernicus Sentinel-1A/B satellites operating at C-band in terrain observation by
progressive scans (TOPS) mode bring unprecedented opportunities for measuring large-
scale tectonic motions using interferometric synthetic aperture radar (InSAR). Although the
ionospheric effects are only about one-sixteenth of those at L-band, the measurement
accuracy might still be degraded by long-wavelength signals due to the ionosphere. We
implement the range split-spectrum method for correcting ionospheric effects in InSAR with …

Abstract The Copernicus Sentinel-1A/B satellites operated by ESA bring exciting
opportunities for geoscience, especially for studying large-scale tectonic deformation.
Temporal and spatial variations in the ionosphere commonly produce signals in InSAR
measurements at a variety of length scales and can be one of the major error sources for
measuring deformation, particularly at large length scales. Although the ionospheric impact
at C-band is only one sixteenth of that at L-band, it can still have a significant impact on large …