Japan Geoscience Union Meeting 2019

Presentation information

[E] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-OS Ocean Sciences & Ocean Environment

[A-OS09] Ocean Mixing Processes: Impact on Biogeochemistry, Climate and Ecosystem

Sun. May 26, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Ichiro Yasuda(Atmosphere and Ocean Research Institute, The University of Tokyo), Toshiyuki Hibiya(Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo), Jun Nishioka(Hokkaido University, Institute of low temperature sciences), Shin-ichi Ito(Atmosphere and Ocean Research Institute, The University of Tokyo)

[AOS09-P08] Pacific Ocean State Estimation and Clarification of Mechanism of Ocean Circulation by Data Synthesis of Global Observations

*Shuhei Masuda1 (1.Japan Agency for Marine-Earth Science and Technology)

Keywords:OMIX, ocean , mixing , data assimilation

Our aim is to synthesize pre-existing ocean data with newly-acquired turbulence data using state-of-art assimilation technique. Available observations of turbulence strength in the ocean, will be “blended” with pre-existing ocean data applying dynamically self-consistent state estimation approach with 4D-VAR adjoint system. We propose some new techniques and schemes to assimilate turbulence data, which tends to include unique features. The obtained state estimation will provide improved description of ocean circulation, its heat and salt transports, and oceanic ecosystem at lower trophic level.