Integration of PS-lnSAR and GPS for monitoring seasonal and long-term peatland surface fluctuations

摘要

Due to water table elevation changes and entrapped gas ebullition, vertical fluctuations in peatlands surface of up to 20 cm have been reported. Combined with GPS measurement, persistent scatterers synthetic aperture radar interferometry (PS-lnSAR) has acquired huge success in diverse areas in recent years. In this paper, we explain our approach to assessing the viability of PS-InSAR technology to map seasonal and long-term peatland surface oscillation. Loss of coherence is proving challenging, and we discuss this and our approach to assessing how to overcome coherence loss.