International Session (Oral)

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

[A-OS03] Marine ecosystem and biogeochemical cycles: theory, observation and modeling

Mon. May 23, 2016 9:00 AM - 10:30 AM 202 (2F)

Convener:*Shin-ichi Ito(Atmosphere and Ocean Research Institute, The University of Tokyo), Takafumi Hirata(Faculty of Environmental Earth Science, Hokkaido University), Eileen E. Hofmann(Old Dominion University), Charles Stock(Geophysical Fluid Dynamics Laboratory), Chair:Takafumi Hirata(Faculty of Environmental Earth Science, Hokkaido University)

The ocean surface occupies 70% of the earth's surface and supports large and diverse ecosystems, which change in response to climate and human-induced drivers and stressors. Understanding potential changes in marine ecosystems requires knowledge of the biogeochemical cycles and their coupling with ecosystem and circulation processes. The complexity of marine ecosystems requires research that integrates in situ, laboratory, and satellite observations with numerical modeling over a wide range of space and time scales. Thus, interdisciplinary marine biogeochemical and ecosystem studies are integral components of earth system sciences. This session aims to introduce the latest advances in interdisciplinary marine biogeochemical and ecosystem studies, highlight their role in earth system science and communication and collaboration among scientists from a range of disciplines.

+Add all to schedule

9:00 AM - 9:15 AM

[AOS03-01] Mixed Layer Controls on Ocean Carbon Cycling and Ocean Acidification

★Invited papers

*Christopher L Sabine¹, Andrea Fassbender^1,2,3, Adrienne Sutton^1,4, Meghan F. Cronin¹ (1.NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle WA 98115 USA, 2.University Corporation for Atmospheric Research, Boulder, CO 80307 USA, 3.School of Oceanography, University of Washington, Seattle WA 98115 USA, 4.Joint Institute for the Study of the Ocean and Atmosphere, University of Washington, Seattle WA 98115 USA)

9:15 AM - 9:30 AM

[AOS03-02] The ocean acidification trend in the western equatorial Pacific for the past three decades

*Masao Ishii¹, Daisuke Sasano¹, Naohiro Kosugi¹, Katsuya Toyama¹, Hideyuki Nakano¹, Hisayuki Yoshikawa Inoue², Keith B Rodgers³ (1.Meteorological Research Institute, Japan Meteorological Agency, 2.Hokkaido University, 3.Princeton University)

9:30 AM - 9:45 AM

[AOS03-03] Colloidal pumping as a removal process of dissolved iron: a model study

*Kazuhiro Misumi¹, Adrian B Burd², Matthew C Long³, J. Keith Moore⁴, Lindsay Keith³, Daisuke Tsumune¹, Takaki Tsubono¹ (1.Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 2.University of Georgia at Athens, 3.National Center for Atmospheric Research, 4.University of California at Irvine)

9:45 AM - 10:00 AM

[AOS03-04] Development of a marine ecosystem model including nitrite

*Chisato Yoshikawa¹, Yoshikazu Sasai¹, S. Lan Smith¹, Akiko Makabe¹, Takuro Nunoura¹, Masahide Wakita¹, Makio Honda¹ (1.Japan Agency for Marine-Earth Science and Technology)

10:00 AM - 10:15 AM

[AOS03-05] Biogeochemical classification of the global ocean based on phytoplankton growth limitation

*Taketo Hashioka¹, Takafumi Hirata², Maki Noguchi¹, Sanae Chiba¹ (1.Japan Agency for Marine-Science and Technology, 2.Hokkaido University)

10:15 AM - 10:30 AM

[AOS03-06] Impact of physiological flexibility on the dynamics of phytoplankton biomass, production, and nutrient distribution in a 1-D model of the near-surface ocean

*S. Lan Smith¹, Yoshikazu Sasai¹, Bingzhang Chen¹ (1.Marine Ecosystem Dynamics Research Group, Research Centre for Global Change, Japan Agency for Marine-Earth Science and Technology)