128 / 2023-08-10 14:54:20

ROMS-NPZD Coupled Model Hindcast and CMIP6 Assessment of Biogeochemistry with Climate Change in Southern South China Sea

ROMS,biogeochemistry,climate change,CMIP6,future projections

This research aims to establish a foundational comprehension of ocean attributes and responses in the context of escalating global warming. The interaction between the atmosphere and the sea stands as a crucial process that governs productivity, biogeochemistry, and the overall well-being of the oceans. This endeavour primarily concentrates on investigating the interplay between ocean biogeochemistry and the climatic system across historical and future periods. This investigation uses the Regional Ocean Modelling System (ROMS) coupled with the NPZD Fennel model to comprehensively explore the effects stemming from various climate change scenarios within the expanse of the Southern South China Sea (SSCS). Although the utilization of biogeochemical models for examining marine ecosystems is widespread, the objective assessment of these models' effectiveness remains uncommon. Subsequent to this, an assessment was conducted on the proficiency of 13 climate models incorporating biogeochemical elements within the most recent advancement of the Coupled Model Intercomparison Project Phase 6 (CMIP6). This evaluation aimed to gauge the ability of these models to replicate the biogeochemical dynamics of the Southern South China Sea in historical timeframes, subsequently assigning rankings based on their performance metrics. The climatic attributes and discrepancies exhibited by each CMIP6 model were then measured against CMEMS, both on an annual basis and during the southwest and northeast monsoon periods. These performance metrics encompass various statistical methodologies. Regardless of the circumstance, the models identified as top performers through our ranking form a subset characterized by high performance, serving as a dependable foundation for future climate modeling endeavours in the South China Sea region.