ABSTRACT The duration of a single satellite deployment is insufficient to detect long-term trends in phytoplankton biomass. By integrating data from different platforms, we quantified the phytoplankton trends in the South China Sea (SCS) from the early-to-mid 1980s to the present. We focused on winter data because the sea surface temperature (SST) in winter has been increasing over the past three decades. We included data from three different eras: (1) the Coastal Zone Colour Scanner (CZCS) period (1979–1983), (2) the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) period (1998–2002), and (3) the Moderate Resolution Imaging Spectroradiometer (MODIS) period (2010–2014). There was a decline in phytoplankton (approximately 0.15 mg m−3) over the entire SCS from the CZCS period to the SeaWiFS period. The largest reduction (over 0.3 mg m−3) occurred in the northern and western SCS. After the SeaWiFS period, the phytoplankton increased by approximately 0.05 mg m−3. The largest increase was observed to the west of Luzon Strait, extending towards the east coast of Hainan Island. The fluctuations in phytoplankton from the early-to-mid 1980s to the present were consistent with the variation in the wind field rather than with the continued increase in SST. The wind speed decreased from the CZCS period to the SeaWiFS period and increased from the SeaWiFS period to the MODIS period. Moreover, the nutrient variations induced by the mixed-layer depth also contributed to the fluctuations in phytoplankton.

中文翻译：

---

1980 年代末和 1990 年代初南海浮游植物减少的遥感

摘要 单个卫星部署的持续时间不足以检测浮游植物生物量的长期趋势。通过整合来自不同平台的数据，我们量化了从 1980 年代早期到中期至今南海 (SCS) 的浮游植物趋势。我们专注于冬季数据，因为冬季的海面温度 (SST) 在过去三年中一直在增加。我们纳入了来自三个不同时代的数据：(1) 海岸带彩色扫描仪 (CZCS) 时期 (1979-1983)，(2) 海景宽视场传感器 (SeaWiFS) 时期 (1998-2002)， (3) 中分辨率成像光谱仪 (MODIS) 期间（2010-2014 年）。在从 CZCS 时期到 SeaWiFS 时期的整个 SCS 中，浮游植物数量下降（约 0.15 mg m-3）。最大的减少（超过 0. 3 mg m−3) 发生在南海北部和西部。在 SeaWiFS 时期之后，浮游植物增加了大约 0.05 mg m-3。吕宋海峡以西向海南岛东海岸延伸，增幅最大。1980 年代中期至今浮游植物的波动与风场的变化一致，而不是与海温持续升高有关。风速从CZCS周期到SeaWiFS周期减小，从SeaWiFS周期到MODIS周期增大。此外，混合层深度引起的养分变化也导致了浮游植物的波动。向海南岛东海岸延伸。1980 年代中期至今浮游植物的波动与风场的变化一致，而不是与海温持续升高有关。风速从CZCS期到SeaWiFS期降低，从SeaWiFS期到MODIS期增加。此外，混合层深度引起的养分变化也导致了浮游植物的波动。向海南岛东海岸延伸。1980 年代中期至今浮游植物的波动与风场的变化一致，而不是与海温持续升高有关。风速从CZCS周期到SeaWiFS周期减小，从SeaWiFS周期到MODIS周期增大。此外，混合层深度引起的养分变化也导致了浮游植物的波动。