(A) Location of the LADC experiment sites in 2001 (green circles), 2002 (yellow circles), 2007 (yellow squares), and 2010 (red pins). A fire symbol denotes the DWH incident site (28°44′12″ N, 88°23′14″ W). Yellow squares indicate the northern and southern locations of EARS with about 9 and 25 miles from DWH, respectively. (B) Green overlay represents the extent of the satellite imaged surface oil on June 14, 2010 (courtesy of NOAA). (C) Geographic location of the oil spill site relative to the Louisiana and Mississippi coasts. These maps were produced using GoogleEarth.
(Color online) Typical EARS buoy mooring.
Comparison of the mean click counts per day and the 95% confidence interval before and after the oil spill at the selected buoys in the northern and southern sites. Error bars shows the 95% confidence interval of the daily mean click counts. The comparison of the mean click counts using data from other buoys would give similar results.
Click counts per minute: (a) For one 2007 buoy (titled as N07-1) and (b) for one 2010 buoys (titled as N10-1) in the northern site.
Click counts per minute: (a) For one 2007 buoy (titled as S07-1) and (b) for one 2010 buoy (titled as S10-1) in the southern site.
The histogram and power law fitting curve: (a) For one 2007 buoy (titled as N07-1) and (b) for one 2010 buoy (titled as N10-1) in the northern site.
Comparison of the power law fittings for the (a) northern and (b) southern sites. Dark lines correspond to the 2010 data set.
The 95% confidence interval of the average hourly density for both northern and southern locations (light gray—northern sites, dark gray—southern sites; N07-1–N07-3 and S07-1–S07-3 are data for 2007; N10-1, S10-1, and S10-2 are data for 2010).
The estimated values of the parameters and .
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