1. Centre for Polar Observation and Modelling, Department of Earth Sciences; University College London; London UK
2. European Space Agency, EOP-PY, ESTEC; Noordwijk Netherlands
3. Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
4. Polar Science Center, Applied Physics Laboratory; University of Washington; Seattle Washington USA
5. Department of Earth and Space Science and Engineering; York University; Toronto Canada
6. Alfred Wegener Institute for Polar and Marine Research; Bremerhaven Germany
7. Woods Hole Oceanographic Institution; Woods Hole Massachusetts USA
8. School of Computer, Math, and Natural Sciences; Morgan State University; Baltimore Maryland USA
9. Earth System Science Interdisciplinary Center; University of Maryland; College Park Maryland USA