River water level monitoring from satellite radar altimetry multi missions a case study of the Amazon and Danube riversMostafavi, Majid; Shirzad, R.; Delpeche-Ellmann, Nicole Camille; Ellmann, Artu12th Coastal Altimetry Workshop : Coastal Altrimetry Training Course, 4-7 February, 2020 : European Space Agency ESRIN, Frascati, Italy : abstracts2020 / p. 34-35https://az659834.vo.msecnd.net/eventsairwesteuprod/production-nikal-public/ae128dad984c40168397660cc8d0ede7