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Since primary production and phytoplankton biomass cannot currently be measured over entire ocean basins, scientists use chlorophyll α as a proxy for primary production. Modern satellite observations monitor and track global chlorophyll α abundances in the ocean via remote sensing. Higher chlorophyll concentrations generally indicate areas of ...
The General Bathymetric Chart of the Oceans (GEBCO) is a publicly available bathymetric chart of the world's oceans. The project was conceived with the aim of preparing a global series of charts showing the general shape of the seafloor. Over the years it has become a reference map of the bathymetry of the world's oceans for scientists and others.
The concentration of chlorophyll A is used as an index of phytoplankton biomass. In the ocean, phytoplankton all contain the chlorophyll pigment, which has a greenish color. Phytoplankton are microscopic organisms that live in watery environments and changes in the amount of phytoplankton indicate the change in productivity of the ocean.
Ocean chlorophyll concentration as a proxy for marine primary production. Green indicates where there are a lot of phytoplankton, while blue indicates where there are few phytoplankton. – NASA Earth Observatory 2019. [1] Marine primary production is the chemical synthesis in the ocean of organic compounds from atmospheric or dissolved carbon ...
Chlorophyll a is the most common of the six, present in every plant that performs photosynthesis. Each pigment absorbs light more efficiently in a different part of the electromagnetic spectrum. Chlorophyll a absorbs well in the ranges of 400–450 nm and at 650–700 nm; chlorophyll b at 450–500 nm and at 600–650 nm. Xanthophyll absorbs ...
Chlorophyll-a concentration is sometimes used to measure water clarity, especially when suspended sediments and colored dissolved organic matter concentrations are low. Chlorophyll-a concentration is a proxy for phytoplankton biomass, which is one way to quantify how turbid the water is due to biological primary production .
Mixed phytoplankton community. Important primary producers within the global ocean. Chlorophylls are the light harvesting pigments employed in photosynthesizing organisms that facilitate the conversion of light into cellular energy for synthesis of organic matter.
The most recent version is also incorporated into the annual release of the General Bathymetric Chart of the Oceans grid. The first version of IBCSO was published in 2013, [4] covering the Southern Ocean south of 60°S. More than 4,200 million ocean soundings of diverse types and quality were incorporated.