Research Content 1：Ocean optics and satellite oceanography
（1）approaches to acquire accurate optical properties; variation of optical properties associated with environmental factors
（2）active optical components in the water associated with biogeochemistry, with particular focus on phytoplankton; algorithms to retrieve biogeochemical properties
（3）biogeochemical response to the environmental change/global change based on multi-satellite time series
Fig. 1 (a) close-up view of phytoplankton absorption coefficient at 443 nm (Aph) in the nearshore water in May–August;
(b) The interannual variation of Aph, percentage of valid retrievals and alongshore wind stress anomaly in the
area of Hanjiang River estuary in June during 2003-2009 and the MEI.
Fig.2 Penetration depth of solar irradiance (sun at zenith) at 360 nm in the global ocean, as gauged by 10% of the surface
light (Z(360)10%). Black: land or ice; white: waters with Kd(412) > 0.05 m-1 and are masked out here.
