Oiled P.austral. DWO-3-DEL-1

Spectrum Details

Modality

NIR

Category

man-made

Material Type

weathered oil on vegetation

Sample ID

DWO-3-DEL-1

Collection Locality

Bird's Foot delta of the Mississippi river, 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 coating leaves and stems of Phragmites australis. Oiled leaves have a sticky, dark brown and black coating of oil and occur on portions of the P. australis stems. Spectrum measured in the field on August 14, 2010. The reflectance spectrum has strong absorption features centered near 1.72 and 2.30 microns arising from C-H bonds in weathered oil. The site DWO-3-DEL-1 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/ Spectrum was used 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:

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126