1. Department of Earth Sciences, School of Ocean and Earth Science and Technology University of Hawai‛i at Mānoa Honolulu HI USA
2. IDL University of Algarve Faro Portugal
3. EUMETSAT Darmstadt Germany
4. Sea and Surf Technology GmbH Trappenkamp Germany
5. Laboratory for Satellite Altimetry NOAA College Park MD USA
6. Department of Earth and Environmental Sciences Michigan State University East Lansing MI USA