1 Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, California, 93106, United States of America.
2 Biophysical Remote Sensing Group, School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, Queensland, 4072, Australia.
3 Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, 92093, United States of America.