Abstract In February 2016 and April 2018 the European Space Agency launched the Sentinel-3A and 3B satellites respectively, as part of the European Commission’s multi-satellite Copernicus Programme. Here we process Sentinel-3A waveform data to estimate Arctic sea level anomaly and radar freeboard from November 2017 to April 2018. We compare our results to those from the CryoSat-2 satellite, and find an intermission bias on sea-level anomaly of 2 cm. We also find a mean radar freeboard difference of 1 cm, which we attribute to the use of empirical retrackers to retrieve lead and floe elevations. Ahead of Sentinel-3B waveform data being made available, we use orbit files to estimate the improvement in sampling resolution afforded by the addition of Sentinel-3A and 3B data to the CryoSat-2 dataset. By combining data from the three satellites, grid resolution or time-sampling can be almost tripled compared with using CryoSat-2 data alone.
Extending the Arctic sea ice freeboard and sea level record with the Sentinel-3 radar altimeters
Advances in Space Research ; 68 , 2 ; 711-723
2019-10-07
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Online Contents | 1994
A new approach to lightweight radar altimeters
Tema Archiv | 1974
|Online Contents | 1994
Measuring the Lake Level Evolution in the Qinghai-Tibet Plateau with Radar Altimeters
British Library Conference Proceedings | 2014
|