@misc{9223643,
  abstract     = {{Blue carbon, defined as carbon fixed by marine plants, has gained attention as a climate change mitigation strategy. Coastal ecosystems play an important role in blue carbon storage due to their high carbon burial rates. Although the dynamics of the partial pressure of CO2 in seawater (pCO2) are closely related to blue carbon processes, studies investigating pCO2 variability in coastal areas remain limited. This study analyzes pCO2 dynamics in a seagrass bed together with relevant environmental factors and seeks to improve an existing numerical model by incorporating seagrass biological processes. The study site is located on the eastern coast of the Yatsushiro Sea in Kumamoto Prefecture, Japan, with field observations conducted at Sashiki Port. A five-year dataset from six field surveys between 2021 and 2025 was used to evaluate the effects of varying environmental conditions on carbon dynamics. Model development was carried out using Delft3D, a hydrodynamic and water quality modeling framework. The results reveal the temporal variability of pCO2 and identify its major controlling factors. Weather conditions strongly influenced air–sea CO2 flux. Although incorporating seagrass processes improved model representation, simulated pCO2 showed only moderate agreement with observations, highlighting the need for further parameter refinement and continued field measurements.}},
  author       = {{Tsuchiya, Taichi}},
  issn         = {{1101-9824}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{TVVR 5000}},
  title        = {{Numerical modeling of blue carbon dynamics considering seagrass at Sashiki Port}},
  year         = {{2026}},
}