Quick "Cut and Paste" highlights:
" ...The “probable extent” of the oil slick is an estimate by the National Oceanic and Atmospheric Administration of where oil is mostly likely to go based on wind and ocean current forecasts, as well as analysis of aerial photography and satellite imagery. The “observed extent” show areas where oil was visible on the surface of the water during aerial surveys of the Gulf. The observed extents are not available every day. The extents may vary widely from day to day because of changes in wind patterns and ocean currents...."
For more on the estimates, see this article.
Map Credits:
By ERIN AIGNER, JOE BURGESS, SHAN CARTER, HAEYOUN PARK and ARCHIE TSE
Sources: National Oceanic and Atmospheric Administration; U.S. Coast Guard; SkyTruth
Aritcle credits:
By JUSTIN GILLIS - Published: May 13, 2010
A version of this article appeared in print on May 14, 2010, on page A1 of the New York edition.
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