Acknowledgements
We thank the Distribution Active Archive Center at the NASA
Goddard Space Flight Center for the production and distribution
of the SeaWiFS and MODIS data. This work was supported by the
Hakodate Marine Bio Industrial-Cluster Project in the Regional
Innovation Cluster Program (Global Type) from 2010 (formerly
known as the Knowledge Cluster Program in 2009) of the
Grant-in-Aid for University and Society Collaboration from the
Ministry of Education, Culture, Sports, Science and Technology
(MEXT), Japan.