Research on Fast in Situ Sensing Technology for Marine Gross Primary Productivity Based on Fluorescence Dynamics Method
Gaofang YIN,
Nanjing ZHAO,
Ming DONG,
Mingjun MA,
Tingting GAN,
Zhisong QIN,
Xiang WANG,
Peng HUANG,
Xiang HU
Affiliations
Gaofang YIN
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Nanjing ZHAO
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Ming DONG
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Mingjun MA
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Tingting GAN
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Zhisong QIN
School of Computer and Information Security, Guilin University of Electronic Science and Technology, Guilin 541004, China
Xiang WANG
School of Electrical Engineering, Anhui University of Engineering, Wuhu 241000, China
Peng HUANG
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Xiang HU
Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Marine gross primary productivity(GPP) constitutes a fundamental element of the biological matter cycle and energy flow within the marine ecosystem, serving as a key indicator for assessing the sate of marine ecological environment. Traditional methods of measuring GPP are often laborious, with long measurement period and poor immediacy. To address the pressing need for expeditious monitoring of marine GPP in ecological surveys and carbon sink assessment, we explored multi-wavelength variable light pulse-induced fluorescence kinetic technology. This approach leverages chlorophyll fluorescence as a probe of phytoplankton photosynthetic activity and culminated in the development of an in-situ sensor. Subsequently, we applied this sensor in trials across the Arctic, Yellow Sea, Bohai Sea, and South China Sea. The resulting spatial distribution of GPP across these regions has yielded extensive real-time observational data, contributing substantially to the monitoring and scientific research of the marine ecological environment. Sea trials outcomes demonstrate that the multi-band variable light pulse-induced fluorescence kinetic technology can rapidly and accurately estimate GPP, offering notable advantages such as speed, accuracy, stability, and reliability in measurement. This ultimately provides an advanced technical resource for marine ecological investigations and carbon sink assessments.
