As the goals for altimetric measurements become ever more precise, there is concern about the reliable detection and discarding of rain contaminated data. A dual-frequency rain detection technique developed for the Kuand C-band TOPEX altimeter, is adapted for the Kuand S-band RA-2 altimeter on Envisat. Of particular concern is the selection of a suitable threshold to minimise the quantity of go...

Gyroscopes are instruments capable of sensing changes in their inertial orientation. Satellites usually have gyroscopes within their Attitude and Orbit Control System as attitude (orientation) sensors that measure angular displacements. They are critical components and constantly monitored during the duration of the mission. In face of serious failures, proper corrective actions are possible, b...

The Benínar Dam, located in Southeastern Spain, is an earth-fill dam that has experienced filtration issues since its construction 1985. Despite the installation of various monitoring systems, data collected are sparse and inadequate for dam’s lifetime. present research integrates Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) modeling to validate this dam, opening way enhan...

In this paper, multi-frequency synthetic aperture radar (SAR) data at L- and C-bands (ALOS PALSAR Envisat/ASAR) were used to estimate forest biomass in Tuscany, Central Italy. The ground measurements of woody volume (WV, m3/ha), which can be considered as a proxy biomass, retrieved from the Italian National Forest Inventory (NFI). After preliminary investigation assess sensitivity backscatter C...