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On this page: Biology | Chemistry | Circulation & Transport

Biology
Imaging and SamplingAlvin and Sentry explore the deep Gulf
Principal Investigator: Tim Shank
In December 2010, R/V Atlantis carried the submersible Alvin and autonomous underwater vehicle (AUV) Sentry to the Gulf of Mexico to help scientists examine deep-sea habitats near the source of the oil spill. Use of the two vehicles in tandem to identify and target sites of interest on the seafloor represented a first for deep-water exploration.

Collecting Deep-sea Sediment FluxCollecting Deep-sea Sediment
Principal Investigator: Chris German
In late 2009, a group of researchers studying deep-water animals and habitats in the Gulf of Mexico set out two instruments to collect samples of the carbon-rich debris that rains down from above and that serves as food for many of the animals that live on the bottom. Both were scheduled to take their final sample on July 2 so WHOI researchers quickly mobilized to place new instruments on the seafloor and extend their record of conditions in the Gulf.

oil droplets and planktonFrom Plankton to Oil Droplets
Principal Investigators: Cabell Davis, Nick Loomis
WHOI scientists deployed instruments specially designed to identify and measure the tiny plants and animals that live in the open ocean. At the same time, they discovered that their instruments are also well suited for measuring the size and distribution of oil droplets in the water column. This information is important to model the oil plume more accurately.

Biological Responses to Oil and DispersantBiological Responses to Oil and Dispersant
Principal Investigator: Ann Tarrant
Based on a long history of work with the starlet anemone (Nematostella vectensis), scientists from WHOI and elsewhere have begun watching for and modeling genetic and physiological responses in the organism to the oil and the dispersants used to fight the spill.

Dead Zones and Microbial Response to Oil Dead Zones and Microbial Response to Oil
Principal Investigator: Ben Van Mooy
Water samples from the Gulf are helping scientists understand how different microbes in the ocean respond to oil spills. They found that although oil-eating microbes were limited by a lack of phosphorous in the water, they were able to consume oil at a much higher rate than expected.

Chemistry
Oil Sample RepositoryGulf Coast Sample Repository
Principal Investigator: Chris Reddy
Following the Deepwater Horizon oil spill, many Gulf coastal beaches were oiled. Some remnants of this oil remain and provide invaluable clues on the fate of oil in the marine environment. To track such changes, samples are being collected and photos of the samples are available on a website to facilitate requests for material.


Collecting Oil Samples Collecting Underwater Oil Samples
Principal Investigators: Chris Reddy, Jeff Seewald
Before scientists could calculate the amount of oil flowing into the Gulf, they needed to know the composition of the material gushing from the ruptured wellhead. To obtain this crucial sample, WHOI scientists used a device originally built to study hydrothermal vent fluids to capture and contain the oil and gas at pressure and then transport it back to the lab for analysis.

Analyzing Gulf Water SamplesAnalyzing Gulf Water Samples
Principal Investigator: Liz Kujawinski
Oil is a complex mixture of up to 100,000 compounds, some soluble in water, some not. Once it enters the environment, particularly the ocean, it begins to fractionate and no longer acts as a single substance. WHOI chemists have developed finely tuned analytical instruments and techniques to track minute amounts of the soluble components of oil in the Gulf, as well as faint chemical traces of the dispersants used to break up the spill.

Circulation & Transport
Chief Scientist, Rich Camilli, a WHOI environmental engineer, and co-principal investigator Chris Reddy, a WHOI marine chemist and oil spill expert, aboard the research vessel Endeavor in June 2010 in the Gulf of Mexico.Mapping and Characterizing an Underwater Plume
Principal Investigator: Rich Camilli
WHOI scientists deployed the autonomous underwater vehicle (AUV) Sentry equipped with a compact, underwater mass spectrometer to identify and map the chemical plume spreading from the blown-out oil well. The techniques they used were developed at WHOI to find hydrothermal vents and underwater volcanoes.


Mapping Gulf CurrentsMapping Gulf Currents
Principal Investigator: Breck Owens
In the weeks after the Gulf oil spill started, WHOI scientists and their colleagues deployed an autonomous underwater vehicle called a Spray glider to map currents in the Gulf of Mexico from June to August. These measurements helped predict the spread of the oil at and beneath the surface and to alleviate fears that the oil would spread far beyond the Gulf.

Calculating Flow RateCalculating Flow Rate
Deepwater Horizon, 2010
Principal Investigators: Rich CamilliAndy Bowen
In the early weeks after the explosion of the Deepwater Horizon drill rig, estimates of how much oil was pouring into the Gulf varied widely. A reliable figure was crucial to helping everyone involved in battling the spill understand what they were up against. 


Last updated: April 27, 2011
 


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