The Broadview Radar Altimetry Toolbox is a tool designed to use radar altimetry data. It is a joint project between ESA and CNES to develop an open source tool (GPL-3) freely available to all the altimetry community.
The toolbox is able to read all altimetry data from official data centres, from ERS-1 and 2, Topex/Poseidon, Geosat Follow-on, Jason-1, Envisat, Jason-2, CryoSat and Sentinel-3, from Sensor Geophysical Data Record to gridded merged data. It can also visualise results and do some processing and computations.
The Altimetry Toolbox and its source code can be downloaded from the Altimetry Toolbox website.