Oil In Water

WET Labs was on the front line responding to the Deep Water Horizon, delivering instruments to the ships at sea and consulting with BP, NOAA and EPA. WET Labs fluorometers were used to detect the deep plume, alerting the responders that oil and gas was not just on the surface. WET Labs Senior Oceanographers spent time on board vessels working to determine how far the deep plume had spread. 

The presence of both scattering and fluorescence is an excellent indicator of the existence of an oil emulsion. These sensors are effective crude oil fluorometers because crude oil has extremely broad absorption and emission spectra and the emission wavelength of the CDOM fluorometers is centered at the primary crude emission peak.

Because the CDOM fluorometer will respond to a wide range of fluorophores other than crude oil, ancillary measurements are useful to decrease false positive results. For crude oil spills in offshore "blue water" conditions such as the outer shelf and deep water of the Gulf of Mexico, CDOM fluorescent response should be quite low and high positive response in CDOM raw counts on the order of tens to hundreds of counts would indicate the presence of crude oil.

ECO CDOM Fluorometer in Action: Open Publications

Current Joint Analysis Group (JAG) Reports

Instrument drift checks

Maps and Data can be found at NOAA Science Missions & Data: Deepwater Horizon, as well as specific reports:

SeaOWL UV-A™ (SeaWater Oil Finder™)
Based upon the highly successful WET Labs’ ECO sensor, Sea-Bird Scientific has developed an industry leading detection technology creating a 5X optical resolution improvement over its predecessor.
The Water Quality Monitor (WQM) is designed to deliver core biogeochemical water quality parameters in coastal ecosystems from a single integrated package.
Environmental Characterization Optics (ECO)
The Environmental Characterization Optics (ECO) series of sensors incorporate a common set of options with a single basic design to make them ideal for a wide variety of deployments.
The Sea-Bird Scientific SeaOWL UV-A™ SLC introduces a new in-situ oil-in-water sensor specifically designed for integration into the Teledyne Webb Research Slocom glider.
ECO FL fluorometers measure fluorescence from chlorophyll-a, CDOM, uranine, rhodamine, and phycoyanin and phycoerythrin.
The Environmental Characterization Optics (ECO) series of sensors incorporates a common set of options with a single basic design to make them ideal for a wide variety of deployments.
ECO Triplet-w
The ECO Triplet custom optical instrument is now available with active anti-biofouling. It features an evolutionary design that builds off the bio-wiper and faceplate available on the current ECO line.
ECO Triplet
The Triplet is a a special-order, three-optical-sensor instrument available in a user-defined configuration. The Triplet addresses the need for multiple simultaneous scattering and fluorescence sensors for autonomous and unattended measurement platforms.
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