Hongyan Xi

Dr. Hongyan Xi is a Scientist at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) in Bremerhaven, specializing in Physical Oceanography. Her research focuses on ocean color remote sensing algorithms, marine optics, phytoplankton functional types, and climate-driven ecological trends. She leads projects like ML-PhyTAO (Machine Learning for Phytoplankton Functional Types in the Arctic) and contributes to the SOOP (Ship of Opportunity Program).

Her work integrates satellite data and field observations to study phytoplankton dynamics, particularly in Arctic and Atlantic regions. Key projects include validation of Copernicus Marine Service products and analyzing long-term trends in phytoplankton composition using multi-decadal satellite records.

Xi collaborates on initiatives such as the Fram Strait long-term monitoring and the TIDAL-HX01 vessel-based data acquisition program. Her research emphasizes data fusion techniques, climate change impacts, and the development of ocean monitoring indicators for policy applications.

• Key Projects: ML-PhyTAO, SOOP, 4D-MedSea
• Expertise: Remote sensing, phytoplankton ecology, climate modeling
• Platforms: Satellite data (OLCI, TROPOMI), underway spectrophotometry