Surface water storage in floodplains and wetlands is poorly known from regional to global scales, spite of its importance the hydrological carbon balances, as wet areas are an important compartment which delays transfer, modifies sediment transport through sedimentation erosion processes, a source for greenhouse gases. Remote sensing powerful tool monitoring temporal variations both extent, lev...

Abstract. The Totten and Moscow University glaciers, located in East Antarctica, contain 5.1 m sea-level equivalent of ice have been losing mass over recent decades. Using ICESat-2 laser altimetry repeat track analysis satellite radar interferometry from Sentinel-1a/b synthetic aperture (SAR) images, we mapped the grounding line (GL) locations these two glaciers between 2017 2021. By comparing ...

The variability of the trend of the global mean sea level (GMSL) on decadal scales is of great importance to understanding the long-term evolution of the GMSL. Trend determination is affected by the temporally correlated processes in the record, which have often not been properly accounted for in previous studies. The problem is treated here as one of optimal estimation weighted by the auto-cov...

Satellite radar altimetry is one of the most powerful techniques for measuring sea surface height variations, with applications ranging from operational oceanography to climate research. Over open oceans, altimeter return waveforms generally correspond to the Brown model, and by inversion, estimated shape parameters provide mean surface height and wind speed. However, in coastal areas or over i...

We developed a portable ultra-wideband radar system capable of reconfigurable operation in multiple frequency bands (separate or simultaneous) spanning from microwaves through millimeter waves. The instrument provides compact solution for fine-resolution measurements elevation changes and superficial snow/firn thickness low-altitude, mid-sized airborne platforms. In this article, we provide an ...

Radar backscattering coefficients from synthetic aperture radars and scatterometers are commonly used to characterize the land surface properties monitor their temporal evolution. altimetry is mostly used, over land, provide time series of water stage lakes, rivers wetlands topography ice sheets. Very few studies radar for geophysical applications except determine changes in Arctic lakes state ...

[1] Satellite radar altimetry has the ability to monitor variations in surface water height (stage) for large wetlands, rivers, and associated floodplains. A clear advantage is the provision of data where traditional gauges are absent. As part of an international program, a complete altimetric analysis of the Amazon Basin is being undertaken. Here, an updated and more rigorous evaluation of the...

S U M M A R Y Improving the accuracy of the marine gravity field requires both improved altimeter range precision and dense track coverage. After a hiatus of more than 15 yr, a wealth of suitable data is now available from the CryoSat-2, Envisat and Jason-1 satellites. The range precision of these data is significantly improved with respect to the conventional techniques used in operational oce...