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This book chapter provides a comprehensive overview of optical characterization and remote sensing applications in understanding phytoplankton dynamics and associated environmental factors in the coastal waters of the South Eastern Arabian Sea (SEAS). Through multiple studies conducted over various seasons from 2010 to 2017, the research investigates the abundance, composition, and optical properties of phytoplankton, as well as the influence of environmental parameters such as nutrient concentrations and seasonal variations on their distribution. Key findings include the identification of diverse phytoplankton genera, predominantly centric diatoms, with notable seasonal variations in abundance, diversity, and pigment composition. The research highlights the influence of environmental factors such as nitrate, phosphate, and silicate concentrations on phytoplankton size distribution, emphasizing the importance of understanding these dynamics for accurate remote sensing predictions. Furthermore, the chapter delves into the role of colored dissolved organic matter (CDOM) in modulating underwater light penetration and its temporal variations in coastal waters. The study reveals CDOM sources and their implications for optical complexity, emphasizing the need to incorporate seasonal components and phytoplankton abundance in CDOM algorithms. Additionally, the chapter explores the optical classification of coastal waters based on spectral reflectance and optically active substances (OAS), including chlorophyll-a (Chl-a), CDOM, and total suspended matter (TSM). Evaluation of bio-optical algorithms for Chl-a retrieval from satellite data underscores the significance of atmospheric correction schemes in enhancing accuracy, with insights into the impact of environmental variables on remote sensing performance. Overall, this chapter contributes to a deeper understanding of phytoplankton dynamics, optical properties, and their implications for remote sensing applications in coastal ecosystems, providing valuable insights for both scientific research and practical management of marine resources.

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Optical Characterization and Remote Sensing of Phytoplankton Dynamics in the South Eastern Arabian Sea: Insights and Applications

  • 章节

  • 发表日期：

    2026年

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  • P. Minu,
  • V. P. Souda,
  • S. S. Shaju,
  • Aneesh A. Lotliker,
  • P. Muhamed Ashraf

摘要

This book chapter provides a comprehensive overview of optical characterization and remote sensing applications in understanding phytoplankton dynamics and associated environmental factors in the coastal waters of the South Eastern Arabian Sea (SEAS). Through multiple studies conducted over various seasons from 2010 to 2017, the research investigates the abundance, composition, and optical properties of phytoplankton, as well as the influence of environmental parameters such as nutrient concentrations and seasonal variations on their distribution. Key findings include the identification of diverse phytoplankton genera, predominantly centric diatoms, with notable seasonal variations in abundance, diversity, and pigment composition. The research highlights the influence of environmental factors such as nitrate, phosphate, and silicate concentrations on phytoplankton size distribution, emphasizing the importance of understanding these dynamics for accurate remote sensing predictions. Furthermore, the chapter delves into the role of colored dissolved organic matter (CDOM) in modulating underwater light penetration and its temporal variations in coastal waters. The study reveals CDOM sources and their implications for optical complexity, emphasizing the need to incorporate seasonal components and phytoplankton abundance in CDOM algorithms. Additionally, the chapter explores the optical classification of coastal waters based on spectral reflectance and optically active substances (OAS), including chlorophyll-a (Chl-a), CDOM, and total suspended matter (TSM). Evaluation of bio-optical algorithms for Chl-a retrieval from satellite data underscores the significance of atmospheric correction schemes in enhancing accuracy, with insights into the impact of environmental variables on remote sensing performance. Overall, this chapter contributes to a deeper understanding of phytoplankton dynamics, optical properties, and their implications for remote sensing applications in coastal ecosystems, providing valuable insights for both scientific research and practical management of marine resources.