1. Department of Earth, Ocean and Ecological Sciences; University of Liverpool; Liverpool UK
2. NASA, Jet Propulsion Laboratory, California Institute of Technology; Pasadena California USA
3. School of Environmental Sciences; University of Ulster; Coleraine UK
4. School of Geography, Politics and Sociology; University of Newcastle upon Tyne; Newcastle upon Tyne UK
5. School of Earth and Environment; University of Leeds; Leeds UK