Correlation analysis between phytoplankton functional types and the ocean partial pressure of carbon dioxide using the satellite ocean colour observation and marine ecosystem modelling.

利用卫星海洋颜色观测和海洋生态系统模拟，分析浮游植物功能类型与海洋二氧化碳分压的相关性。

• 批准号: 22810001
• 负责人: HIRATA Takafumi
• 金额: $ 2.01万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22810001/
• 关键词: 二酸化炭素分圧; 植物プランクトン; リモートセンシング; モデル; 海洋科学; 海洋生態; 環境変動

Time series of partial pressure of carbon dioxide and phytoplankton functional types(PFTs) were reconstructed from the existing ocean colour data. Temporal anomaly of pCO_2 and fractional Chlorophyll-a(Chla) of each PFT showed a significant negative correlation around the sub-arctic or sub-tropical frontal zones, which was also found from the hindcast simulations of a marine ecosystem model. On the other hand, correlation between pCO_2 and a relative contribution of each PFT to the total Chla showed a taxonomic dependence in the frontal zones : the large-and middle-sized algae such as diatoms and haptophytes showed a negative correlation with pCO_2 whereas the small-sized algae a positive correlation. These results imply that phytoplankton community structure, as well as their biomass, may play an important role on variation in pCO_2 for some oceanic regions.

从现有的海洋颜色数据中重建了二氧化碳分压和浮游植物功能类型（PFTs）的时间序列。海洋生态系统模式的模拟结果也表明，在亚北极或亚热带锋区，各PFT的pCO_2和Chla的时间距平均表现出显著的负相关性。在锋区，各PFT对总Chla的相对贡献与pCO_2的相关性表现出分类学上的依赖性：大中型藻类如硅藻和附着藻类与pCO_2呈负相关，而小型藻类与pCO_2呈正相关。这些结果表明，浮游植物群落结构，以及它们的生物量，可能在某些海洋区域的pCO_2的变化起着重要的作用。

项目成果

A comparison between a 3D ecosystem model and satellite observations of phytoplankton community structure in the global oceans

全球海洋浮游植物群落结构的 3D 生态系统模型与卫星观测结果的比较

• 发表时间: 2010
• 作者: Ikegami T.;Hirashima M;Osu R;Nozaki D;Takafumi Hirata
• 通讯作者: Takafumi Hirata

Synoptic relationships between surface Chlorophyll-a and diagnostic pigments specific to phytoplankton functional types

• DOI: 10.5194/bg-8-311-2011
• 发表时间: 2011-01-01
• 期刊: BIOGEOSCIENCES
• 影响因子: 4.9
• 作者: Hirata, T.;Hardman-Mountford, N. J.;Yamanaka, Y.
• 通讯作者: Yamanaka, Y.

A comparison between phytoplankton community structures derived from a global 3D ecosystem model and satellite observation

全球 3D 生态系统模型与卫星观测得出的浮游植物群落结构的比较

• DOI: 10.1016/j.jmarsys.2012.01.009
• 发表时间: 2013
• 期刊: Journal of Marine Systems
• 影响因子: 2.8
• 作者: Hirata T

An intercomparison of bio-optical techniques for detecting dominant phytoplankton size class from satellite remote sensing

• DOI: 10.1016/j.rse.2010.09.004
• 发表时间: 2011-02-15
• 期刊: REMOTE SENSING OF ENVIRONMENT
• 影响因子: 13.5
• 作者: Brewin, Robert J. W.;Hardman-Mountford, Nick J.;Gentili, Bernard
• 通讯作者: Gentili, Bernard

A comparion between global phytoplankton types estimated by model and satellite

模型与卫星估算的全球浮游植物类型比较

• 发表时间: 2011
• 作者: Ito Y;Nakayama T;Tabuchi T;Ioka A;Miyashiro I;Tsukuma H;Takafumi Hirata
• 通讯作者: Takafumi Hirata