Oil waterEmuls. DWO-3-BAT-09

Spectrum Details

Modality

NIR

Category

man-made

Material Type

weathered oil in an oil-water emulsion

Sample ID

oil-water emulsion measured at site DWO-3-BAT-09

Collection Locality

Barataria Bay, Louisiana

Spectral Purity

1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Sample Description

Weathered oil from the Deepwater Horizon spill in the form of an oil-water emulsion at the shoreline. The spectrum is an average of 16 measurements made of the water containing clumps of red oil-water emulsion. The adjacent marsh plants had their leaves and stems coated with The spectrum was measured in the field on August 13, 2010. The reflectance spectrum has absorption features centered near 1.72 and 2.30 microns arising from C-H bonds in weathered oil. The site DWO-3-BAT-09 is described in: Kokaly, R.F., Heckman, David, Holloway, JoAnn, Piazza, Sarai, Couvillion, Brady, Steyer, G.D., Mills, Christopher, and Hoefen, T.M., 2011, Shoreline surveys of oil-impacted marsh in southern Louisiana, July to August 2010: U.S. Geological Survey Open-File Report 2011�1022, 124 p. Available at http://pubs.usgs.gov/of/2011/1022/ This spectrum labeled "Oil-emulsion" was published and described in: Kokaly, R.F., Couvillion, B.R., Holloway, J.M., Roberts, D.A., Ustin, S.L., Peterson, S.H., Khanna, S., and Piazza, S.C., 2013, Spectroscopic remote sensing of the distribution and persistence of oil from the Deepwater Horizon spill in Barataria Bay marshes, Remote Sensing of Environment, Volume 129, Pages 210-230. http://dx.doi.org/10.1016/j.rse.2012.10.028 IMAGE_OF_SAMPLE: clumps of oil-water emulsion are at the marsh edge in these photos

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126