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Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton

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Benthic storms: temporal variability in a deep-ocean nepheloid layer.

W D Gardner, L G Sullivan

Science (New York, N.Y.)

|July 17, 1981

Summary

Nephelometer measurements in the western North Atlantic revealed unprecedented light scattering levels. These findings suggest significant seafloor activity and potential links to atmospheric storm events.

Area of Science:

Oceanography
Marine optics
Geochemistry

Background:

Understanding seafloor processes is crucial for marine ecosystems.
Light scattering is a key indicator of particulate matter in the ocean.

Purpose of the Study:

To investigate temporal variations in light scattering.
To quantify particulate matter concentrations near the seafloor.
To explore potential drivers of scattering changes.

Main Methods:

Deployed a nephelometer for time-series measurements.
Collected data at 20 meters above the seafloor.
Conducted measurements over a 2.5-month period.

Main Results:

Recorded the highest light scattering values globally.

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Observed rapid fluctuations indicating high seafloor activity.

Correlated some scattering increases with atmospheric storm events.

Conclusions:

The western North Atlantic seafloor exhibits exceptionally high particulate matter dynamics.
Atmospheric forcing may influence near-seafloor particle loads.
Further research is needed to identify specific seafloor activities.