FVCOM

FVCOM is one of many multiple models that are used as a coordinate system. There are billions of data points that are also collected along rivers, along the coastline, and within the sea - for example salinity, temperature, or depth.
Nodes of data collection are very tightly packed around the coastlines and on estuaries and rivers. Most often (check) an isomorphic net is used, which enables the water body to be split along a triangular grid system that can be scaled. This can be expanded or contracted depending how close the area of study is. Over a large body of water, the grid gets a lot bigger. The points between which data is collected is averaged, to give an idea of qualities. In the middle of the ocean, there might be a two kilometer mile point between each of those corners of the triangle of this net which, anywhere between this node, gets averaged. Along the coastline, there is much tighter data, and the net will be in centimeters, or meters, rather than miles.

FVCom is the model which focusses on the ocean. There are multiple different models which overlap to produce predictions for water bodies. All of these models began in the late ’60s, early ’70s and onward, they’ve been developed along the way in the intervening years and they take on more data points. What was initially not understood as being part of the ocean then formed one of the later models, for example, the biological model which is made of tiny life forms, phytoplankton and zooplankton came later.
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