Remote Sensing of Environment

Sentinel-1 has transformed how satellite radar data (SAR and InSAR) are used in volcanology. The systematic, long-term archive and open-access policy means that volcano observatories and research organisations have invested in integrating Sentinel-1 datasets into their monitoring systems. We identify 233 high priority volcanoes and estimate that Sentinel-1 data has been used in peer-reviewed publ…

Leaf area index (LAI) and leaf chlorophyll content (LCC) are essential for ecological applications. Physically based algorithms enable the synergistic retrieval of LAI and LCC, but their performance is often limited by simplifications in radiative transfer (RT) models, which can induce mutual error compensation between these two parameters. In this study, we systematically evaluate synergistic LA…

Passive corner reflectors, made typically of metal plates, are widely used as point targets in synthetic aperture radar (SAR) and SAR interferometry (InSAR) applications. Drawbacks of such corner reflectors include: (i) high cost, especially when many reflectors are required for monitoring purposes; (ii) creation of localised ground motion in soft or unstable soils; and (iii) attractiveness for t…