About the Authors

Tomoko Narazaki

tnarazaki@aori.u-tokyo.ac.jp

Affiliation International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan

Katsufumi Sato

Affiliation International Coastal Research Center, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba, Japan

Kyler J. Abernathy

Affiliation National Geographic Remote Imaging, Washington, D.C., United States of America

Greg J. Marshall

Affiliation National Geographic Remote Imaging, Washington, D.C., United States of America

Nobuyuki Miyazaki

Affiliation Ocean Policy Research Foundation, Tokyo, Japan

Competing Interests

The authors declare that they received funding from National Geographic Remote Imaging and that two of the authors are employed by National Geographic Remote Imaging. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: TN KS KJA GJM. Performed the experiments: TN KS KJA. Analyzed the data: TN. Contributed reagents/materials/analysis tools: KJA GJM NM. Wrote the paper: TN.